2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2750
Circuit/System Verification
Verify that U0102 is not set.
If the DTC is set, refer to DTC U0100-U02FF (with HP2) ()DTC U0100-U02FF (without HP2) (See: U Code Charts/U02FF)
U186B
DTC U186B
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC U186B
- Lost Communication With TCM
Circuit/System Description
Modules connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and
commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the
serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an
availability indication of the transmitter module. Each message contains the identification number of the transmitter module.
Conditions for Running the DTCs
* The system voltage is between 9-16 volts.
* The vehicle power mode master indicates that the need for serial data communications.
Conditions for Setting the DTC
A supervised periodic message that includes the transmitter module availability has not been received.
Action Taken When the DTCs Sets
The modules is never signaled, therefore the specific subsystems will not function.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction.
Circuit/System Verification
Verify that U0101 is not set.
If the DTC is set, refer to DTC U0100-U02FF (with HP2) ()DTC U0100-U02FF (without HP2) (See: U Code Charts/U02FF)
U189A
DTC U189A
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Showing posts with label Circuit/System Verification. Show all posts
Showing posts with label Circuit/System Verification. Show all posts
Friday, December 11, 2020
Tuesday, December 1, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2497
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2497
Circuit/System Verification
1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641 or P0651 are not set.
瀚慖f a DTC is set, refer to DTC P0641 or P0651 (ECM) (See: P Code Charts/P0641) for further diagnosis.
2. Observe the scan tool APP Sensor 1 and 2 voltage parameters. Verify both of the APP sensor voltages are between 0.32-4.75 V.
3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure
several times. DTCs P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs
P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
5. Observe the scan tool APP sensor 1 and 2 parameter. The scan tool should display Agree.
6. Clear the DTCs with the scan tool. Operate the vehicle within the Conditions for Running the DTC or within the conditions that you observed
from the Freeze Frame/Failure Records.
7. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P2120 or P2125 are not the only APP sensor DTCs set.
瀚慖f DTC P2120 or P2125 are the only DTCs set, replace the ECM.
8. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the accelerator pedal.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the appropriate low reference circuit terminal listed below and ground.
* APP sensor 1 terminal F or 4
* APP sensor 2 terminal A or 5
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace
the ECM.
3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.
* APP sensor 1 terminal D or 2
* APP sensor 2 terminal C or 1
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test
normal, replace the ECM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the
ECM.
4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify
the APP sensor 1 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.
Verify the APP sensor 2 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
Circuit/System Verification
1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641 or P0651 are not set.
瀚慖f a DTC is set, refer to DTC P0641 or P0651 (ECM) (See: P Code Charts/P0641) for further diagnosis.
2. Observe the scan tool APP Sensor 1 and 2 voltage parameters. Verify both of the APP sensor voltages are between 0.32-4.75 V.
3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure
several times. DTCs P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs
P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
5. Observe the scan tool APP sensor 1 and 2 parameter. The scan tool should display Agree.
6. Clear the DTCs with the scan tool. Operate the vehicle within the Conditions for Running the DTC or within the conditions that you observed
from the Freeze Frame/Failure Records.
7. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P2120 or P2125 are not the only APP sensor DTCs set.
瀚慖f DTC P2120 or P2125 are the only DTCs set, replace the ECM.
8. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the accelerator pedal.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the appropriate low reference circuit terminal listed below and ground.
* APP sensor 1 terminal F or 4
* APP sensor 2 terminal A or 5
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace
the ECM.
3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.
* APP sensor 1 terminal D or 2
* APP sensor 2 terminal C or 1
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test
normal, replace the ECM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the
ECM.
4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify
the APP sensor 1 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.
Verify the APP sensor 2 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
Monday, November 30, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2490
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2490
Circuit/System Verification
1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641 or P0651 are not set.
瀚慖f a DTC is set, refer to DTC P0641 or P0651 (ECM) (See: P Code Charts/P0641) for further diagnosis.
2. Observe the scan tool APP Sensor 1 and 2 voltage parameters. Verify both of the APP sensor voltages are between 0.32-4.75 V.
3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure
several times. DTCs P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs
P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
5. Observe the scan tool APP sensor 1 and 2 parameter. The scan tool should display Agree.
6. Clear the DTCs with the scan tool. Operate the vehicle within the Conditions for Running the DTC or within the conditions that you observed
from the Freeze Frame/Failure Records.
7. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P2120 or P2125 are not the only APP sensor DTCs set.
瀚慖f DTC P2120 or P2125 are the only DTCs set, replace the ECM.
8. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the accelerator pedal.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the appropriate low reference circuit terminal listed below and ground.
* APP sensor 1 terminal F or 4
* APP sensor 2 terminal A or 5
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace
the ECM.
3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.
* APP sensor 1 terminal D or 2
* APP sensor 2 terminal C or 1
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test
normal, replace the ECM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the
ECM.
4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify
the APP sensor 1 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.
Verify the APP sensor 2 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
Circuit/System Verification
1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641 or P0651 are not set.
瀚慖f a DTC is set, refer to DTC P0641 or P0651 (ECM) (See: P Code Charts/P0641) for further diagnosis.
2. Observe the scan tool APP Sensor 1 and 2 voltage parameters. Verify both of the APP sensor voltages are between 0.32-4.75 V.
3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure
several times. DTCs P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs
P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
5. Observe the scan tool APP sensor 1 and 2 parameter. The scan tool should display Agree.
6. Clear the DTCs with the scan tool. Operate the vehicle within the Conditions for Running the DTC or within the conditions that you observed
from the Freeze Frame/Failure Records.
7. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P2120 or P2125 are not the only APP sensor DTCs set.
瀚慖f DTC P2120 or P2125 are the only DTCs set, replace the ECM.
8. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the accelerator pedal.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the appropriate low reference circuit terminal listed below and ground.
* APP sensor 1 terminal F or 4
* APP sensor 2 terminal A or 5
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace
the ECM.
3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.
* APP sensor 1 terminal D or 2
* APP sensor 2 terminal C or 1
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test
normal, replace the ECM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the
ECM.
4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify
the APP sensor 1 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.
Verify the APP sensor 2 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2483
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2483
Circuit/System Verification
1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641 or P0651 are not set.
瀚慖f a DTC is set, refer to DTC P0641 or P0651 (ECM) (See: P Code Charts/P0641) for further diagnosis.
2. Observe the scan tool APP Sensor 1 and 2 voltage parameters. Verify both of the APP sensor voltages are between 0.32-4.75 V.
3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure
several times. DTCs P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs
P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
5. Observe the scan tool APP sensor 1 and 2 parameter. The scan tool should display Agree.
6. Clear the DTCs with the scan tool. Operate the vehicle within the Conditions for Running the DTC or within the conditions that you observed
from the Freeze Frame/Failure Records.
7. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P2120 or P2125 are not the only APP sensor DTCs set.
瀚慖f DTC P2120 or P2125 are the only DTCs set, replace the ECM.
8. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the accelerator pedal.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the appropriate low reference circuit terminal listed below and ground.
* APP sensor 1 terminal F or 4
* APP sensor 2 terminal A or 5
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace
the ECM.
3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.
* APP sensor 1 terminal D or 2
* APP sensor 2 terminal C or 1
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test
normal, replace the ECM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the
ECM.
4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify
the APP sensor 1 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.
Verify the APP sensor 2 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
Circuit/System Verification
1. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P0641 or P0651 are not set.
瀚慖f a DTC is set, refer to DTC P0641 or P0651 (ECM) (See: P Code Charts/P0641) for further diagnosis.
2. Observe the scan tool APP Sensor 1 and 2 voltage parameters. Verify both of the APP sensor voltages are between 0.32-4.75 V.
3. Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure
several times. DTCs P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
4. Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times. DTCs
P2120, P2122, P2123, P2125, P2127, P2128, or P2138 should not set.
5. Observe the scan tool APP sensor 1 and 2 parameter. The scan tool should display Agree.
6. Clear the DTCs with the scan tool. Operate the vehicle within the Conditions for Running the DTC or within the conditions that you observed
from the Freeze Frame/Failure Records.
7. Ignition ON, observe the DTC information with a scan tool. Verify that DTC P2120 or P2125 are not the only APP sensor DTCs set.
瀚慖f DTC P2120 or P2125 are the only DTCs set, replace the ECM.
8. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the accelerator pedal.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the appropriate low reference circuit terminal listed below and ground.
* APP sensor 1 terminal F or 4
* APP sensor 2 terminal A or 5
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace
the ECM.
3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.
* APP sensor 1 terminal D or 2
* APP sensor 2 terminal C or 1
瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test
normal, replace the ECM.
瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the
ECM.
4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.
瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,
replace the ECM.
6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify
the APP sensor 1 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.
Verify the APP sensor 2 voltage parameter is greater than 4.8 V.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit/connections test
normal, replace the ECM.
8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
Friday, November 27, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2412
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2412
Circuit/System Verification
1. Engine idling in Park with parking brake applied, and drive wheels chocked.
2. Monitor the Transmission Fluid Pressure Switch 1, Transmission Fluid Pressure Switch 3, Transmission Fluid Pressure Switch 4, and
Transmission Fluid Pressure Switch 5 parameters with a scan tool.
3. Place the gear select lever in Park, Reverse, and Neutral range. Verify the TFP switch parameter states are correct for each range. Refer to
Transmission Fluid Pressure Switch Logic (See: Specifications/Mechanical Specifications/Automatic Transmission/Transaxle/System
Specifications/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission Fluid Pressure Switch Logic).
4. Place the gear select lever in Drive range. Command the shift transmission with a scan tool through all forward ranges. Verify the TFP switch
parameter states are correct for each range. Refer to Transmission Fluid Pressure Switch Logic (See: Specifications/Mechanical
Specifications/Automatic Transmission/Transaxle/System Specifications/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission
Fluid Pressure Switch Logic).
5. Operate the vehicle within the conditions for running the DTC to verify the TDC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
Note: You must perform the Circuit/System Verification first.
1. Ignition OFF. Remove the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module
Assembly Replacement (See: Powertrain Management/Transmission Control Systems/Actuators and Solenoids - Transmission and
Drivetrain/Actuators and Solenoids - A/T/Shift Solenoid/Service and Repair).
2. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/6L45/6L50/6L80/6L90 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection).
3. Place the Q8 control solenoid valve assembly on a clean work surface near the transmission assembly.
4. Connect the DT-47825-10 - jumper harness between the vehicle wire harness electrical connector, and the Q8 control solenoid valve
assembly electrical connector.
5. Ignition ON, verify with a scan tool that each TFP switch parameter changes states when gently pushing on each TFP switch with the eraser
end of a pencil.
瀚慖f any TFP switch parameter does not change states, replace the Q8 control solenoid valve assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
P1101
DTC P0101 or P1101
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0101
- Mass Air Flow (MAF) Sensor Performance
DTC P1101
- Intake Air Flow System Performance
Diagnostic Fault Information
Circuit/System Verification
1. Engine idling in Park with parking brake applied, and drive wheels chocked.
2. Monitor the Transmission Fluid Pressure Switch 1, Transmission Fluid Pressure Switch 3, Transmission Fluid Pressure Switch 4, and
Transmission Fluid Pressure Switch 5 parameters with a scan tool.
3. Place the gear select lever in Park, Reverse, and Neutral range. Verify the TFP switch parameter states are correct for each range. Refer to
Transmission Fluid Pressure Switch Logic (See: Specifications/Mechanical Specifications/Automatic Transmission/Transaxle/System
Specifications/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission Fluid Pressure Switch Logic).
4. Place the gear select lever in Drive range. Command the shift transmission with a scan tool through all forward ranges. Verify the TFP switch
parameter states are correct for each range. Refer to Transmission Fluid Pressure Switch Logic (See: Specifications/Mechanical
Specifications/Automatic Transmission/Transaxle/System Specifications/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission
Fluid Pressure Switch Logic).
5. Operate the vehicle within the conditions for running the DTC to verify the TDC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
Note: You must perform the Circuit/System Verification first.
1. Ignition OFF. Remove the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module
Assembly Replacement (See: Powertrain Management/Transmission Control Systems/Actuators and Solenoids - Transmission and
Drivetrain/Actuators and Solenoids - A/T/Shift Solenoid/Service and Repair).
2. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/6L45/6L50/6L80/6L90 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Inspection).
3. Place the Q8 control solenoid valve assembly on a clean work surface near the transmission assembly.
4. Connect the DT-47825-10 - jumper harness between the vehicle wire harness electrical connector, and the Q8 control solenoid valve
assembly electrical connector.
5. Ignition ON, verify with a scan tool that each TFP switch parameter changes states when gently pushing on each TFP switch with the eraser
end of a pencil.
瀚慖f any TFP switch parameter does not change states, replace the Q8 control solenoid valve assembly.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
P1101
DTC P0101 or P1101
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0101
- Mass Air Flow (MAF) Sensor Performance
DTC P1101
- Intake Air Flow System Performance
Diagnostic Fault Information
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2333
Circuit/System Verification
1. If there are any other transmission DTCs set, diagnose those DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle (See:
Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
2. Ignition ON, observe the scan tool ECM Park/Neutral switch parameter while moving the gear shift lever from Park and through all ranges.
The parameter should display Park/Neutral when in Park or Neutral and In-Gear when in Reverse or Drive.
3. Observe the scan tool TCM IMS parameter while slowly moving the gear shift lever from Park through all ranges. Verify the gear position
matches the scan tool parameter. Refer to Transmission Internal Mode Switch Logic (See: Specifications/Mechanical
Specifications/Automatic Transmission/Transaxle/System Specifications/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission
Internal Mode Switch Logic).
瀚慖f not the specified value, refer to Range Selector Lever Cable Adjustment (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Shift Linkage/Shift Cable/Adjustments).
4. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the T12 automatic transmission assembly X1 connector.
2. Install the DT-47825-10 - jumper harness to the X1 vehicle wire harness connector.
3. Ignition OFF, test for less than 5 ohms between terminal 5 at the DT-47825-10 - jumper harness and ground at the transmission case.
瀚慖f greater than the specified value, test the ground circuit for an open/high resistance.
4. Ignition ON, verify with a scan tool the Park/Neutral parameter displays In Gear.
瀚慖f the Park/Neutral parameter displays Park/Neutral, test the signal circuit for a short to ground. If the circuit tests normal, replace the K20
ECM.
5. Ignition ON, connect a 3A fused jumper wire between terminal 3 on the DT-47825-10 - jumper harness and ground at the transmission case.
Verify with a scan tool the Park/Neutral parameter displays Park/Neutral.
瀚慖f the Park/neutral parameter displays In Gear, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the
K20 ECM.
6. Ignition OFF, disconnect the DT-47825-10 - jumper harness from the X1 vehicle harness connector.
7. Connect the X1 vehicle harness connector to the Q8 control solenoid valve assembly.
8. Remove the transmission fluid pan. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement ().
9. Disconnect the B15 automatic transmission internal mode switch electrical connector from the K71 TCM.
10. Ignition ON, test for 11-13 volts between terminal F on the K71 TCM and ground at the transmission case.
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
11. If all circuits test normal, replace the B15 automatic transmission internal mode switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control Module References (See: Testing and Inspection/Programming and Relearning)for control solenoid valve assembly or ECM
replacement, setup, and programming.
Note: If the IMS switch has been replaced, inspect the valve body detent spring to be sure it is centered over the detent lever. This prevents
the detent spring from hitting the IMS switch.
* Manual Shift Shaft Position Switch Replacement (See: Powertrain Management/Computers and Control Systems/Sensors and Switches -
Computers and Control Systems/Transmission Position Sensor/Switch/Service and Repair/6L45/6L50/6L80/6L90 - Automatic Transmission
)for IMS replacement.
P0852
DTC P0850-P0852
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
Circuit/System Verification
1. If there are any other transmission DTCs set, diagnose those DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle (See:
Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
2. Ignition ON, observe the scan tool ECM Park/Neutral switch parameter while moving the gear shift lever from Park and through all ranges.
The parameter should display Park/Neutral when in Park or Neutral and In-Gear when in Reverse or Drive.
3. Observe the scan tool TCM IMS parameter while slowly moving the gear shift lever from Park through all ranges. Verify the gear position
matches the scan tool parameter. Refer to Transmission Internal Mode Switch Logic (See: Specifications/Mechanical
Specifications/Automatic Transmission/Transaxle/System Specifications/6L45/6L50/6L80/6L90 - Automatic Transmission/Transmission
Internal Mode Switch Logic).
瀚慖f not the specified value, refer to Range Selector Lever Cable Adjustment (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Shift Linkage/Shift Cable/Adjustments).
4. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the T12 automatic transmission assembly X1 connector.
2. Install the DT-47825-10 - jumper harness to the X1 vehicle wire harness connector.
3. Ignition OFF, test for less than 5 ohms between terminal 5 at the DT-47825-10 - jumper harness and ground at the transmission case.
瀚慖f greater than the specified value, test the ground circuit for an open/high resistance.
4. Ignition ON, verify with a scan tool the Park/Neutral parameter displays In Gear.
瀚慖f the Park/Neutral parameter displays Park/Neutral, test the signal circuit for a short to ground. If the circuit tests normal, replace the K20
ECM.
5. Ignition ON, connect a 3A fused jumper wire between terminal 3 on the DT-47825-10 - jumper harness and ground at the transmission case.
Verify with a scan tool the Park/Neutral parameter displays Park/Neutral.
瀚慖f the Park/neutral parameter displays In Gear, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the
K20 ECM.
6. Ignition OFF, disconnect the DT-47825-10 - jumper harness from the X1 vehicle harness connector.
7. Connect the X1 vehicle harness connector to the Q8 control solenoid valve assembly.
8. Remove the transmission fluid pan. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement ().
9. Disconnect the B15 automatic transmission internal mode switch electrical connector from the K71 TCM.
10. Ignition ON, test for 11-13 volts between terminal F on the K71 TCM and ground at the transmission case.
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
11. If all circuits test normal, replace the B15 automatic transmission internal mode switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control Module References (See: Testing and Inspection/Programming and Relearning)for control solenoid valve assembly or ECM
replacement, setup, and programming.
Note: If the IMS switch has been replaced, inspect the valve body detent spring to be sure it is centered over the detent lever. This prevents
the detent spring from hitting the IMS switch.
* Manual Shift Shaft Position Switch Replacement (See: Powertrain Management/Computers and Control Systems/Sensors and Switches -
Computers and Control Systems/Transmission Position Sensor/Switch/Service and Repair/6L45/6L50/6L80/6L90 - Automatic Transmission
)for IMS replacement.
P0852
DTC P0850-P0852
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
Monday, November 23, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2321
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2321
Circuit/System Verification
Ignition ON, observe the scan tool Driver Shift Request parameter while toggling between the up shift and down shift with the driver manual shift
switches. The reading should change between Upshift and Downshift.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the S2 transmission manual shift switch.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground.
瀚慖f the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Verify the scan tool Driver Shift Request parameter is Invalid.
瀚慖f not the specified value, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the K9 body control
module.
4. Install a 6.5-7.0K ohm jumper wire between the signal circuit terminal 3 and the B+ circuit terminal 4. Verify the scan tool Driver Shift
Request parameter is None.
瀚慖f not the specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the K9 body control
module.
5. If all circuits test normal, test or replace the S2 transmission manual shift switch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the S2 transmission manual shift switch.
2. Test for 6.5-7.0K ohm between the signal terminal 3 and the B+ terminal 4 with the switch in the released position.
瀚慖f not the specified value, replace the S2 transmission manual shift switch.
3. Test for 1.5-2.0K ohm between the signal terminal 3 and the B+ terminal 4 with the switch in the plus position.
瀚慖f greater than the specified range, replace the S2 transmission manual shift switch.
4. Test for 3.8-4.0K ohm between the signal terminal 3 and the B+ terminal 4 with the switch in the minus position.
瀚慖f greater than the specified range, replace the S2 transmission manual shift switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Shift Lever Replacement (See: Steering and Suspension/Steering/Steering Column/Service and Repair/Shift Lever Replacement) for
automatic transmission manual shift switch replacement.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for body control module replacement, setup, and
programming.
P0826
DTC P0815, P0816, or P0826
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0815
- Upshift Switch Circuit
Circuit/System Verification
Ignition ON, observe the scan tool Driver Shift Request parameter while toggling between the up shift and down shift with the driver manual shift
switches. The reading should change between Upshift and Downshift.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the S2 transmission manual shift switch.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground.
瀚慖f the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Verify the scan tool Driver Shift Request parameter is Invalid.
瀚慖f not the specified value, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the K9 body control
module.
4. Install a 6.5-7.0K ohm jumper wire between the signal circuit terminal 3 and the B+ circuit terminal 4. Verify the scan tool Driver Shift
Request parameter is None.
瀚慖f not the specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the K9 body control
module.
5. If all circuits test normal, test or replace the S2 transmission manual shift switch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the S2 transmission manual shift switch.
2. Test for 6.5-7.0K ohm between the signal terminal 3 and the B+ terminal 4 with the switch in the released position.
瀚慖f not the specified value, replace the S2 transmission manual shift switch.
3. Test for 1.5-2.0K ohm between the signal terminal 3 and the B+ terminal 4 with the switch in the plus position.
瀚慖f greater than the specified range, replace the S2 transmission manual shift switch.
4. Test for 3.8-4.0K ohm between the signal terminal 3 and the B+ terminal 4 with the switch in the minus position.
瀚慖f greater than the specified range, replace the S2 transmission manual shift switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Shift Lever Replacement (See: Steering and Suspension/Steering/Steering Column/Service and Repair/Shift Lever Replacement) for
automatic transmission manual shift switch replacement.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for body control module replacement, setup, and
programming.
P0826
DTC P0815, P0816, or P0826
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0815
- Upshift Switch Circuit
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2319
Circuit/System Verification
1. Ignition ON, verify with a scan tool the Tap Up/Down Switch parameter displays ON in the Chassis Data list under BCM.
2. Ignition ON, verify with a scan tool the Tap Up/Down parameter displays UP when pressing the plus (+) switch and Down when pressing the
minus (-) switch.
3. Ignition ON, verify with a scan tool the Driver Shift Control parameter in the Transmission Data list changes from, Inactive to Active when
placing the automatic transmission shift lever in manual mode position.
4. Ignition ON, verify with a scan tool the Driver Shift Request Switch 1 displays NONE in the transmission data list.
5. Ignition ON, verify with a scan tool the Driver Shift Request Switch 1 displays Upshift when pressing the plus (+) switch and Downshift
when pressing the minus (-) switch.
6. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the automatic transmission shift lever harness connector.
2. Ignition ON, verify with a scan tool the Tap Up/Down Switch parameter displays OFF in the Chassis Data list under BCM.
3. Ignition ON, test for greater than 11 volts between the ignition voltage circuit terminal 4 and ground at the battery negative post.
瀚慖f less than the specified value, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the BCM.
4. Ignition OFF, test for 6.6-7.0 K ohms between terminal 3 and terminal 4 on the automatic transmission shift lever harness connector. Also,
test for 3.7-4.2 K ohms when pressing the minus (-) switch and 1.7-2.0 K ohms when selecting the plus (+) switch.
瀚慖f not within the specified values, replace the automatic transmission shift lever.
5. Test the signal circuit between the BCM and the automatic transmission manual shift switch for a short to ground or an open/high resistance.
If the circuit tests normal, replace the BCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Replace the RSM shift switch. Refer to Shift Lever Replacement (See: Steering and Suspension/Steering/Steering Column/Service and
Repair/Shift Lever Replacement).
* Replace the BCM. Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for replacement, setup,
and programming
P0816
DTC P0815, P0816, or P0826
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0815
- Upshift Switch Circuit
DTC P0816
- Downshift Switch Circuit
DTC P0826
- Up and Down Shift Switch Circuit
Diagnostic Fault Information
Circuit/System Verification
1. Ignition ON, verify with a scan tool the Tap Up/Down Switch parameter displays ON in the Chassis Data list under BCM.
2. Ignition ON, verify with a scan tool the Tap Up/Down parameter displays UP when pressing the plus (+) switch and Down when pressing the
minus (-) switch.
3. Ignition ON, verify with a scan tool the Driver Shift Control parameter in the Transmission Data list changes from, Inactive to Active when
placing the automatic transmission shift lever in manual mode position.
4. Ignition ON, verify with a scan tool the Driver Shift Request Switch 1 displays NONE in the transmission data list.
5. Ignition ON, verify with a scan tool the Driver Shift Request Switch 1 displays Upshift when pressing the plus (+) switch and Downshift
when pressing the minus (-) switch.
6. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Ignition OFF, disconnect the automatic transmission shift lever harness connector.
2. Ignition ON, verify with a scan tool the Tap Up/Down Switch parameter displays OFF in the Chassis Data list under BCM.
3. Ignition ON, test for greater than 11 volts between the ignition voltage circuit terminal 4 and ground at the battery negative post.
瀚慖f less than the specified value, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the BCM.
4. Ignition OFF, test for 6.6-7.0 K ohms between terminal 3 and terminal 4 on the automatic transmission shift lever harness connector. Also,
test for 3.7-4.2 K ohms when pressing the minus (-) switch and 1.7-2.0 K ohms when selecting the plus (+) switch.
瀚慖f not within the specified values, replace the automatic transmission shift lever.
5. Test the signal circuit between the BCM and the automatic transmission manual shift switch for a short to ground or an open/high resistance.
If the circuit tests normal, replace the BCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Replace the RSM shift switch. Refer to Shift Lever Replacement (See: Steering and Suspension/Steering/Steering Column/Service and
Repair/Shift Lever Replacement).
* Replace the BCM. Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for replacement, setup,
and programming
P0816
DTC P0815, P0816, or P0826
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0815
- Upshift Switch Circuit
DTC P0816
- Downshift Switch Circuit
DTC P0826
- Up and Down Shift Switch Circuit
Diagnostic Fault Information
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2231
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2231
Circuit/System Verification
1. Engine idling at normal operating temperature, verify the scan tool TCM Temperature parameter is between -247 and +247掳C (-412 and
+477掳F).
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature parameter and the Transmission Fluid Temperature
parameter with a scan tool. The TCM Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the TCM Temperature
parameter and the Transmission Fluid Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the TCM Temperature parameter does not increase by more than 2掳C (3.5掳F) or the TCM Temperature parameter value is not within 10
掳C (18掳F) of the Transmission Fluid Temperature parameter, then replace the Q8 control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
2ML70 - Automatic Transmission
DTC P0667, P0668, or P0669
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0667
- Transmission Control Module (TCM) Temperature Sensor Performance
DTC P0668
- Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage
DTC P0669
- Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
Circuit/System Description
The transmission control module temperature sensor is located inside of the transmission control module. The transmission control module is
located within the control solenoid valve assembly and is not serviced separately. The transmission control module temperature sensor provides the
transmission control module temperature. This temperature reading is used in various shifting and diagnostic routines in the transmission control
module software.
Conditions for Running the DTC
* Ignition voltage is 11-18 V.
* The engine speed is greater than 450 RPM.
* No DTCs P0722 or P0723.
P0667
* No DTCs P0711, P0712, P077B, or P215C.
* DTC P0667 has not passed this key ON.
* The transmission control module temperature is between -39 and +149掳C (-38 and +300掳F).
Circuit/System Verification
1. Engine idling at normal operating temperature, verify the scan tool TCM Temperature parameter is between -247 and +247掳C (-412 and
+477掳F).
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature parameter and the Transmission Fluid Temperature
parameter with a scan tool. The TCM Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the TCM Temperature
parameter and the Transmission Fluid Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the TCM Temperature parameter does not increase by more than 2掳C (3.5掳F) or the TCM Temperature parameter value is not within 10
掳C (18掳F) of the Transmission Fluid Temperature parameter, then replace the Q8 control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
2ML70 - Automatic Transmission
DTC P0667, P0668, or P0669
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0667
- Transmission Control Module (TCM) Temperature Sensor Performance
DTC P0668
- Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage
DTC P0669
- Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
Circuit/System Description
The transmission control module temperature sensor is located inside of the transmission control module. The transmission control module is
located within the control solenoid valve assembly and is not serviced separately. The transmission control module temperature sensor provides the
transmission control module temperature. This temperature reading is used in various shifting and diagnostic routines in the transmission control
module software.
Conditions for Running the DTC
* Ignition voltage is 11-18 V.
* The engine speed is greater than 450 RPM.
* No DTCs P0722 or P0723.
P0667
* No DTCs P0711, P0712, P077B, or P215C.
* DTC P0667 has not passed this key ON.
* The transmission control module temperature is between -39 and +149掳C (-38 and +300掳F).
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2227
Circuit/System Verification
1. Engine idling at normal operating temperature, verify the scan tool TCM Temperature parameter is between -247 and +247掳C (-412 and
+477掳F).
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature parameter and the Transmission Fluid Temperature
parameter with a scan tool. The TCM Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the TCM Temperature
parameter and the Transmission Fluid Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the TCM Temperature parameter does not increase by more than 2掳C (3.5掳F) or the TCM Temperature parameter value is not within 10
掳C (18掳F) of the Transmission Fluid Temperature parameter, then replace the Q8 control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
2ML70 - Automatic Transmission
DTC P0667, P0668, or P0669
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0667
- Transmission Control Module (TCM) Temperature Sensor Performance
DTC P0668
- Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage
DTC P0669
- Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
Circuit/System Description
The transmission control module temperature sensor is located inside of the transmission control module. The transmission control module is
located within the control solenoid valve assembly and is not serviced separately. The transmission control module temperature sensor provides the
transmission control module temperature. This temperature reading is used in various shifting and diagnostic routines in the transmission control
module software.
Conditions for Running the DTC
* Ignition voltage is 11-18 V.
* The engine speed is greater than 450 RPM.
* No DTCs P0722 or P0723.
P0667
* No DTCs P0711, P0712, P077B, or P215C.
* DTC P0667 has not passed this key ON.
* The transmission control module temperature is between -39 and +149掳C (-38 and +300掳F).
Circuit/System Verification
1. Engine idling at normal operating temperature, verify the scan tool TCM Temperature parameter is between -247 and +247掳C (-412 and
+477掳F).
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature parameter and the Transmission Fluid Temperature
parameter with a scan tool. The TCM Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the TCM Temperature
parameter and the Transmission Fluid Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the TCM Temperature parameter does not increase by more than 2掳C (3.5掳F) or the TCM Temperature parameter value is not within 10
掳C (18掳F) of the Transmission Fluid Temperature parameter, then replace the Q8 control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
2ML70 - Automatic Transmission
DTC P0667, P0668, or P0669
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0667
- Transmission Control Module (TCM) Temperature Sensor Performance
DTC P0668
- Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage
DTC P0669
- Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
Circuit/System Description
The transmission control module temperature sensor is located inside of the transmission control module. The transmission control module is
located within the control solenoid valve assembly and is not serviced separately. The transmission control module temperature sensor provides the
transmission control module temperature. This temperature reading is used in various shifting and diagnostic routines in the transmission control
module software.
Conditions for Running the DTC
* Ignition voltage is 11-18 V.
* The engine speed is greater than 450 RPM.
* No DTCs P0722 or P0723.
P0667
* No DTCs P0711, P0712, P077B, or P215C.
* DTC P0667 has not passed this key ON.
* The transmission control module temperature is between -39 and +149掳C (-38 and +300掳F).
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2223
Circuit/System Verification
1. Engine idling at normal operating temperature, verify the scan tool TCM Temperature parameter is between -247 and +247掳C (-412 and
+477掳F).
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature parameter and the Transmission Fluid Temperature
parameter with a scan tool. The TCM Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the TCM Temperature
parameter and the Transmission Fluid Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the TCM Temperature parameter does not increase by more than 2掳C (3.5掳F) or the TCM Temperature parameter value is not within 10
掳C (18掳F) of the Transmission Fluid Temperature parameter, then replace the Q8 control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
2ML70 - Automatic Transmission
DTC P0667, P0668, or P0669
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0667
- Transmission Control Module (TCM) Temperature Sensor Performance
DTC P0668
- Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage
DTC P0669
- Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
Circuit/System Description
The transmission control module temperature sensor is located inside of the transmission control module. The transmission control module is
located within the control solenoid valve assembly and is not serviced separately. The transmission control module temperature sensor provides the
transmission control module temperature. This temperature reading is used in various shifting and diagnostic routines in the transmission control
module software.
Conditions for Running the DTC
* Ignition voltage is 11-18 V.
* The engine speed is greater than 450 RPM.
* No DTCs P0722 or P0723.
P0667
* No DTCs P0711, P0712, P077B, or P215C.
* DTC P0667 has not passed this key ON.
* The transmission control module temperature is between -39 and +149掳C (-38 and +300掳F).
Circuit/System Verification
1. Engine idling at normal operating temperature, verify the scan tool TCM Temperature parameter is between -247 and +247掳C (-412 and
+477掳F).
瀚慖f not within the specified range, replace the Q8 control solenoid valve assembly.
2. Operate the vehicle at 64 km/h (40 mph) for 10 minutes. Monitor the TCM Temperature parameter and the Transmission Fluid Temperature
parameter with a scan tool. The TCM Temperature parameter should increase by more than 2掳C (3.5掳F). Also, the TCM Temperature
parameter and the Transmission Fluid Temperature parameter should be within 10掳C (18掳F) of each other.
瀚慖f the TCM Temperature parameter does not increase by more than 2掳C (3.5掳F) or the TCM Temperature parameter value is not within 10
掳C (18掳F) of the Transmission Fluid Temperature parameter, then replace the Q8 control solenoid valve assembly.
3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control solenoid valve assembly replacement. Refer to Control Module References (See: Testing and Inspection/Programming and
Relearning) for replacement, setup, and programming.
* Perform the Service Fast Learn Adapts (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and
Inspection/Programming and Relearning) following all transmission related repairs.
2ML70 - Automatic Transmission
DTC P0667, P0668, or P0669
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P0667
- Transmission Control Module (TCM) Temperature Sensor Performance
DTC P0668
- Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage
DTC P0669
- Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
Circuit/System Description
The transmission control module temperature sensor is located inside of the transmission control module. The transmission control module is
located within the control solenoid valve assembly and is not serviced separately. The transmission control module temperature sensor provides the
transmission control module temperature. This temperature reading is used in various shifting and diagnostic routines in the transmission control
module software.
Conditions for Running the DTC
* Ignition voltage is 11-18 V.
* The engine speed is greater than 450 RPM.
* No DTCs P0722 or P0723.
P0667
* No DTCs P0711, P0712, P077B, or P215C.
* DTC P0667 has not passed this key ON.
* The transmission control module temperature is between -39 and +149掳C (-38 and +300掳F).
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2182
Circuit/System Verification
1. Observe the DTC information with a scan tool. DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 should not set.
2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Observe the DTC information with a scan tool.
瀚慖f DTC P0602 is set, attempt to program the K20 ECM before replacing the K20 ECM. Refer to Control Module References (See:
Testing and Inspection/Programming and Relearning) for K20 ECM replacement, setup, and programming.
瀚慖f DTC P0602 resets, replace the K20 ECM.
2. Observe the DTC information with a scan tool. DTC P0601, P0603, P0604, P0605, P0606, P0607, P060D, P062F, or P2610 should not set.
瀚慖f a DTC failed this ignition, replace the K20 ECM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, programming and setup
Fuel Pump Flow Control Module (FPCM)
DTC P0601-P0604, P0606, or P062F
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptors
DTC P0601
- Control Module Read Only Memory (ROM)
DTC P0602
- Control Module Not Programmed
DTC P0603
- Control Module Long Term Memory Reset
DTC P0604
- Control Module Random Access Memory (RAM)
DTC P0606
- Control Module Internal Performance
DTC P062F
- Control Module Long Term Memory Performance
Circuit/System Description
The internal fault detection is handled inside the fuel pump control module. No external circuits are involved.
Conditions for Running the DTC
The fuel pump control module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and
ground. This program runs even if the voltage is out of the valid operating range.
Conditions for Setting the DTC
Circuit/System Verification
1. Observe the DTC information with a scan tool. DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 should not set.
2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Observe the DTC information with a scan tool.
瀚慖f DTC P0602 is set, attempt to program the K20 ECM before replacing the K20 ECM. Refer to Control Module References (See:
Testing and Inspection/Programming and Relearning) for K20 ECM replacement, setup, and programming.
瀚慖f DTC P0602 resets, replace the K20 ECM.
2. Observe the DTC information with a scan tool. DTC P0601, P0603, P0604, P0605, P0606, P0607, P060D, P062F, or P2610 should not set.
瀚慖f a DTC failed this ignition, replace the K20 ECM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, programming and setup
Fuel Pump Flow Control Module (FPCM)
DTC P0601-P0604, P0606, or P062F
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptors
DTC P0601
- Control Module Read Only Memory (ROM)
DTC P0602
- Control Module Not Programmed
DTC P0603
- Control Module Long Term Memory Reset
DTC P0604
- Control Module Random Access Memory (RAM)
DTC P0606
- Control Module Internal Performance
DTC P062F
- Control Module Long Term Memory Performance
Circuit/System Description
The internal fault detection is handled inside the fuel pump control module. No external circuits are involved.
Conditions for Running the DTC
The fuel pump control module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and
ground. This program runs even if the voltage is out of the valid operating range.
Conditions for Setting the DTC
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Circuit/System Verification
Note: This DTC may be stored as a history DTC without affecting the operation of the module. If stored only as a history DTC and not retrieved as
a current DTC, do not replace the module.
1. Verify that DTC P0602 is not set.
瀚慖f the DTC is set, program the K27 fuel pump control module.
2. Verify that DTCs P0601, P0603, P0604, P0606, and P062F are not set.
瀚慖f the DTCs are set, program the K27 fuel pump control module. If the DTCs reset, replace the K27 fuel pump control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning)for fuel pump control module replacement, setup, and
programming
ECM
DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 (ECM)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each of the diagnostic category.
DTC Descriptors
DTC P0601
- Control Module Read Only Memory Performance
DTC P0602
- Control Module Not Programmed
DTC P0603
- Control Module Long Term Memory Reset
DTC P0604
- Control Module Random Access Memory Performance
DTC P0606
- Control Module Processor Performance
DTC P0607
- Control Module Performance
DTC P060D
- Control Module Accelerator Pedal (APP) Position System Circuitry Performance
DTC P062F
- Control Module Long Term Memory Performance
DTC P2610
- Control Module Ignition Off Timer Performance
Circuit/System Description
This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM) and the throttle actuator control
(TAC) system. This diagnostic also addresses if the ECM is not programmed.
The ECM monitors its ability to read and write to the memory. It also monitors a timing function. The ECM and the TAC processors are used to
Circuit/System Verification
Note: This DTC may be stored as a history DTC without affecting the operation of the module. If stored only as a history DTC and not retrieved as
a current DTC, do not replace the module.
1. Verify that DTC P0602 is not set.
瀚慖f the DTC is set, program the K27 fuel pump control module.
2. Verify that DTCs P0601, P0603, P0604, P0606, and P062F are not set.
瀚慖f the DTCs are set, program the K27 fuel pump control module. If the DTCs reset, replace the K27 fuel pump control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning)for fuel pump control module replacement, setup, and
programming
ECM
DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 (ECM)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each of the diagnostic category.
DTC Descriptors
DTC P0601
- Control Module Read Only Memory Performance
DTC P0602
- Control Module Not Programmed
DTC P0603
- Control Module Long Term Memory Reset
DTC P0604
- Control Module Random Access Memory Performance
DTC P0606
- Control Module Processor Performance
DTC P0607
- Control Module Performance
DTC P060D
- Control Module Accelerator Pedal (APP) Position System Circuitry Performance
DTC P062F
- Control Module Long Term Memory Performance
DTC P2610
- Control Module Ignition Off Timer Performance
Circuit/System Description
This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM) and the throttle actuator control
(TAC) system. This diagnostic also addresses if the ECM is not programmed.
The ECM monitors its ability to read and write to the memory. It also monitors a timing function. The ECM and the TAC processors are used to
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Circuit/System Verification
Engine ON, while rotating the steering wheel to both steering stops, observe the scan tool Cruise Control Switch parameter while pressing each of
the cruise control switches. The parameter should toggle between On, Off, Resume, and Set as the applicable switch is pressed.
Circuit/System Testing
Cruise Control Switch Circuit Malfunction
1. Ignition OFF, disconnect the harness connector at the steering wheel controls switch - left.
2. Ignition ON, test for B+ between the B+ circuit terminal 1 and ground.
瀚慖f less than the specified value, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
BCM.
3. Test for B+ between the B+ circuit terminal 1 and the signal circuit terminal 3.
瀚慖f less than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the BCM.
4. Ignition OFF, disconnect the X1 harness connector at the BCM.
5. Test for infinite resistance between the signal circuit terminal 3 and ground.
瀚慖f less than the specified value, test the signal circuit for a short to ground.
6. If all circuits test normal, test or replace the steering wheel control switch - left.
Component Testing
Steering Wheel Control Switch - Left
1. Disconnect the harness connector at the steering wheel controls switch - left.
2. Cruise control switch ON, measure the resistance between terminal 1 and terminal 3 while individually activating and holding each cruise
control function switch and compare the resistance reading to the values in the table below.
瀚慖f not within the specified resistance range, replace the steering wheel controls switch - left.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Wheel Control Switch Assembly Replacement (See: Accessories and Optional Equipment/Sensors and Switches - Accessories and
Optional Equipment/Steering Mounted Controls Assembly/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup and programming
P0572
DTC P0572 or P0573
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0572
- Brake Switch Circuit 1 Low Voltage
Circuit/System Verification
Engine ON, while rotating the steering wheel to both steering stops, observe the scan tool Cruise Control Switch parameter while pressing each of
the cruise control switches. The parameter should toggle between On, Off, Resume, and Set as the applicable switch is pressed.
Circuit/System Testing
Cruise Control Switch Circuit Malfunction
1. Ignition OFF, disconnect the harness connector at the steering wheel controls switch - left.
2. Ignition ON, test for B+ between the B+ circuit terminal 1 and ground.
瀚慖f less than the specified value, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
BCM.
3. Test for B+ between the B+ circuit terminal 1 and the signal circuit terminal 3.
瀚慖f less than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the BCM.
4. Ignition OFF, disconnect the X1 harness connector at the BCM.
5. Test for infinite resistance between the signal circuit terminal 3 and ground.
瀚慖f less than the specified value, test the signal circuit for a short to ground.
6. If all circuits test normal, test or replace the steering wheel control switch - left.
Component Testing
Steering Wheel Control Switch - Left
1. Disconnect the harness connector at the steering wheel controls switch - left.
2. Cruise control switch ON, measure the resistance between terminal 1 and terminal 3 while individually activating and holding each cruise
control function switch and compare the resistance reading to the values in the table below.
瀚慖f not within the specified resistance range, replace the steering wheel controls switch - left.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Wheel Control Switch Assembly Replacement (See: Accessories and Optional Equipment/Sensors and Switches - Accessories and
Optional Equipment/Steering Mounted Controls Assembly/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup and programming
P0572
DTC P0572 or P0573
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0572
- Brake Switch Circuit 1 Low Voltage
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2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1793
Circuit/System Verification
* Observe the DTC information with a scan tool. Verify there are no B52 HO2S heater or fuel trim DTCs set.
瀚慖f any DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic
Trouble Code (DTC) List - Vehicle).
* Engine idling at operating temperature, observe the appropriate B52 HO2S parameter with a scan tool. Verify the following:
- The B52 HO2S 1 value should vary from below 200 mV to above 800 mV and respond to fueling changes.
- The B52 HO2S 2 value should change greater than 200 mV when the throttle is quickly cycled 3 times from closed to wide open and
back to closed after running the engine at 1,500 RPM for 30 s.
* Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Verify none of the following conditions exist:
* Lean or rich fuel injectors-Refer to Fuel Injector Diagnosis (CH47976) (See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel Injector/Testing and Inspection)Fuel Injector Diagnosis (J39021 or Scan Tool) (See: Powertrain Management/Fuel
Delivery and Air Induction/Fuel Injector/Testing and Inspection)
* Water intrusion in the B52 HO2S harness connector
* Low or high fuel system pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics)
* Fuel that is contaminated-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (
See: Powertrain Management/Fuel Delivery and Air Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis
(Special Tool))
* Fuel saturation of the evaporative emission (EVAP) canister
* Exhaust leaks near the B52 HO2S
* Engine vacuum leaks
* Engine oil consumption-Refer to Oil Consumption Diagnosis (See: Engine, Cooling and Exhaust/Engine/Testing and
Inspection/Component Tests and General Diagnostics/Oil Consumption Diagnosis)
* Engine coolant consumption-Refer to Loss of Coolant (See: Engine, Cooling and Exhaust/Cooling System/Testing and
Inspection/Symptom Related Diagnostic Procedures/Loss of Coolant)
瀚慖f you find any of the above conditions, repair as necessary.
2. If all conditions test normal, test or replace the appropriate B52 HO2S.
Repair Instructions
Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service Precautions/Heated Oxygen Sensor Resistance Learn Reset Caution).
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming
P0134
DTC P0134, P0140, P0154, or P0160
Circuit/System Verification
* Observe the DTC information with a scan tool. Verify there are no B52 HO2S heater or fuel trim DTCs set.
瀚慖f any DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic
Trouble Code (DTC) List - Vehicle).
* Engine idling at operating temperature, observe the appropriate B52 HO2S parameter with a scan tool. Verify the following:
- The B52 HO2S 1 value should vary from below 200 mV to above 800 mV and respond to fueling changes.
- The B52 HO2S 2 value should change greater than 200 mV when the throttle is quickly cycled 3 times from closed to wide open and
back to closed after running the engine at 1,500 RPM for 30 s.
* Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Verify none of the following conditions exist:
* Lean or rich fuel injectors-Refer to Fuel Injector Diagnosis (CH47976) (See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel Injector/Testing and Inspection)Fuel Injector Diagnosis (J39021 or Scan Tool) (See: Powertrain Management/Fuel
Delivery and Air Induction/Fuel Injector/Testing and Inspection)
* Water intrusion in the B52 HO2S harness connector
* Low or high fuel system pressure-Refer to Fuel System Diagnosis (w/o FPCM) (See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Component Tests and General Diagnostics)Fuel System Diagnosis (FPCM) (See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics)
* Fuel that is contaminated-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool) (See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool))Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (
See: Powertrain Management/Fuel Delivery and Air Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis
(Special Tool))
* Fuel saturation of the evaporative emission (EVAP) canister
* Exhaust leaks near the B52 HO2S
* Engine vacuum leaks
* Engine oil consumption-Refer to Oil Consumption Diagnosis (See: Engine, Cooling and Exhaust/Engine/Testing and
Inspection/Component Tests and General Diagnostics/Oil Consumption Diagnosis)
* Engine coolant consumption-Refer to Loss of Coolant (See: Engine, Cooling and Exhaust/Cooling System/Testing and
Inspection/Symptom Related Diagnostic Procedures/Loss of Coolant)
瀚慖f you find any of the above conditions, repair as necessary.
2. If all conditions test normal, test or replace the appropriate B52 HO2S.
Repair Instructions
Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service Precautions/Heated Oxygen Sensor Resistance Learn Reset Caution).
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control
Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (2500 Series) (See: Powertrain
Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming
P0134
DTC P0134, P0140, P0154, or P0160
Friday, October 30, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1739
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1739
Circuit/System Verification
1. Verify that DTCs P0721, P0722, P0723, P0966, P0967, P0969, P0970, P0971, P0973, P0974, P0976, P0977, P2720, P2721, P2728, P2729,
or P2730 is not set.
瀚慖f any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code
Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
2. Perform the Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing
and Inspection/Symptom Related Diagnostic Procedures/2ML70 - Automatic Transmission/Transmission Fluid Level and Condition Check)
to verify correct fluid level.
3. Perform the Line Pressure Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/2ML70 - Automatic Transmission/Line Pressure Check) to verify correct oil pressure.
4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic Transmission/Control
Solenoid Valve and Transmission Control Module Assembly Inspection) to verify control solenoid valve assembly condition.
5. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test) to verify control solenoid
valve assembly function.
6. Inspect the trans fluid pump ball check valve for possible sticking or damage.
瀚慖f you found a concern with this check ball, repair the concern.
7. Inspect the hybrid low, 1-2 clutch boost valve assembly and the hybrid low, 1-2 clutch regulator valve assembly for sticking or damage.
瀚慖f you found a concern with the hybrid low, 1-2 clutch boost valve assembly or the hybrid low, 1-2 clutch regulator valve assembly,
repair or replace the valve or valve body.
8. Inspect the 4th clutch assembly for a slipping or damaged condition.
瀚慖f you found a 4th clutch assembly concern, repair or replace the low and reverse clutch assembly as necessary.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control Valve Assembly Disassemble (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and
Repair/Overhaul/2ML70 - Automatic Transmission/54. Control Valve Assembly Disassemble) for valve body inspection procedures.
* Control Valve Upper Body Replacement (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Valve Body/Service and
Repair/2ML70 - Automatic Transmission) for control valve body replacement.
* 4th Clutch Piston Removal (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Overhaul/2ML70 -
Automatic Transmission/10. 4th Clutch Piston Removal) for 4th clutch inspection.
* 4th Clutch Piston Installation (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Overhaul/2ML70 -
Automatic Transmission/35. 4th Clutch Piston Installation) for 4th clutch assembly replacement.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for control solenoid valve assembly replacement,
setup, and programming.
P079D
DTC P079D
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P079D
- Transmission Clutch 4 Slip Detected
Circuit/System Description
The transmission control module monitors the 1-3 clutch slip speed when the 1-3 clutch is applied. The 1-3 clutch is displayed as Clutch 4 on the
Circuit/System Verification
1. Verify that DTCs P0721, P0722, P0723, P0966, P0967, P0969, P0970, P0971, P0973, P0974, P0976, P0977, P2720, P2721, P2728, P2729,
or P2730 is not set.
瀚慖f any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code
Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
2. Perform the Transmission Fluid Level and Condition Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing
and Inspection/Symptom Related Diagnostic Procedures/2ML70 - Automatic Transmission/Transmission Fluid Level and Condition Check)
to verify correct fluid level.
3. Perform the Line Pressure Check (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component
Tests and General Diagnostics/2ML70 - Automatic Transmission/Line Pressure Check) to verify correct oil pressure.
4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic Transmission/Control
Solenoid Valve and Transmission Control Module Assembly Inspection) to verify control solenoid valve assembly condition.
5. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/2ML70 - Automatic
Transmission/Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test) to verify control solenoid
valve assembly function.
6. Inspect the trans fluid pump ball check valve for possible sticking or damage.
瀚慖f you found a concern with this check ball, repair the concern.
7. Inspect the hybrid low, 1-2 clutch boost valve assembly and the hybrid low, 1-2 clutch regulator valve assembly for sticking or damage.
瀚慖f you found a concern with the hybrid low, 1-2 clutch boost valve assembly or the hybrid low, 1-2 clutch regulator valve assembly,
repair or replace the valve or valve body.
8. Inspect the 4th clutch assembly for a slipping or damaged condition.
瀚慖f you found a 4th clutch assembly concern, repair or replace the low and reverse clutch assembly as necessary.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Control Valve Assembly Disassemble (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and
Repair/Overhaul/2ML70 - Automatic Transmission/54. Control Valve Assembly Disassemble) for valve body inspection procedures.
* Control Valve Upper Body Replacement (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Valve Body/Service and
Repair/2ML70 - Automatic Transmission) for control valve body replacement.
* 4th Clutch Piston Removal (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Overhaul/2ML70 -
Automatic Transmission/10. 4th Clutch Piston Removal) for 4th clutch inspection.
* 4th Clutch Piston Installation (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Overhaul/2ML70 -
Automatic Transmission/35. 4th Clutch Piston Installation) for 4th clutch assembly replacement.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for control solenoid valve assembly replacement,
setup, and programming.
P079D
DTC P079D
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC P079D
- Transmission Clutch 4 Slip Detected
Circuit/System Description
The transmission control module monitors the 1-3 clutch slip speed when the 1-3 clutch is applied. The 1-3 clutch is displayed as Clutch 4 on the
Tuesday, October 27, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1668
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1668
Circuit/System Verification
1. Clear the DTC information.
2. Turn the ignition OFF for 1 minute.
3. Turn the ignition ON.
4. Test for correct operation of the direction and range IMS switch circuits in every gear selection. Hold the selector in each gear position for at
least 2 seconds. Refer to Typical Scan Tool Data.
瀚慖f the Direction IMS operation does not match the logic table proceed with Circuit/System Testing.
瀚慖f the IMS A/B/C/P operation does not match the logic table proceed to DTC P1824, P182A-P182F, P1838, or P1839 ( See: P Code
Charts/P1824).
5. Retest for DTC P16F4.
瀚慖f the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the
PIM already contains the latest software version, replace the PIM.
Circuit/System Testing
1. Disconnect the transmission X176 24-way connector. Ignition ON. The scan tool IMS Status parameter should display HI for the R1, R2, D1,
D2 and S signal circuit displays.
瀚慖f a signal displays LOW, disconnect the PIM connector X1 and test the circuit for a short to ground.
瀚慖f the circuit tests normal, replace the PIM.
2. Install DT-48493 to the vehicle harness connector X176. Verify that a test lamp illuminates between the Direction IMS switch ground circuit
and battery positive.
瀚慖f the test lamp does not illuminate, disconnect PIM connector X1 and test the ground circuit for an open, high resistance or short to
voltage condition.
瀚慖f the circuit tests normal, replace the PIM.
3. Connect a 3-amp fused jumper wire between each Direction IMS signal circuit at DT-48493 and the ground circuit terminal. The scan tool
parameter should display LOW for each signal circuit when grounded.
瀚慖f a scan tool parameter always displays HIGH, disconnect PIM connector X1 and test the circuit for an open, high resistance or short to
voltage condition.
瀚慖f the circuit tests normal, replace the PIM.
4. Disconnect the transmission 16-way X175 connector. Install DT-47825-10 to the vehicle harness. Connect a 3-amp fused jumper wire
between the Starter signal circuit terminal and ground. The scan tool parameter should display LOW when the signal circuit is grounded.
瀚慖f the scan tool parameter always displays HIGH, disconnect PIM connector X1 and test the circuit for an open, high resistance or short to
voltage condition.
瀚慖f the circuit tests normal, replace the PIM.
Important: The remaining diagnostic steps test the internal transmission components and circuits. The automatic transmission fluid
pan assembly must be removed in order to perform the diagnostic tests.
5. Disconnect the IMS connector at the switch.
Important: Connect one end of the DT-48493 to the transmission connector. Use the other end as the terminal testing point.
瀚慣est the direction signal circuits and the ground circuit between the IMS and the transmission 24-way X176 connector for a short to
ground, open, high resistance or short to voltage condition.
Important: Connect one end of the DT-47825-10 to the transmission connector. Use the other end as the terminal testing point.
瀚慣est the Starter signal circuit between the IMS and the transmission 16-way X175 connector for a short to ground, open, high resistance
or short to voltage condition. The TCM is a pass-through of the Starter signal circuit and should be tested as a typical circuit path.
瀚慖f the circuit, including the TCM, tests normal, replace the IMS switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for PIM or TCM replacement, setup, and
programming.
* Manual Shift Shaft Position Switch Replacement (See: Powertrain Management/Computers and Control Systems/Sensors and Switches -
Circuit/System Verification
1. Clear the DTC information.
2. Turn the ignition OFF for 1 minute.
3. Turn the ignition ON.
4. Test for correct operation of the direction and range IMS switch circuits in every gear selection. Hold the selector in each gear position for at
least 2 seconds. Refer to Typical Scan Tool Data.
瀚慖f the Direction IMS operation does not match the logic table proceed with Circuit/System Testing.
瀚慖f the IMS A/B/C/P operation does not match the logic table proceed to DTC P1824, P182A-P182F, P1838, or P1839 ( See: P Code
Charts/P1824).
5. Retest for DTC P16F4.
瀚慖f the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the
PIM already contains the latest software version, replace the PIM.
Circuit/System Testing
1. Disconnect the transmission X176 24-way connector. Ignition ON. The scan tool IMS Status parameter should display HI for the R1, R2, D1,
D2 and S signal circuit displays.
瀚慖f a signal displays LOW, disconnect the PIM connector X1 and test the circuit for a short to ground.
瀚慖f the circuit tests normal, replace the PIM.
2. Install DT-48493 to the vehicle harness connector X176. Verify that a test lamp illuminates between the Direction IMS switch ground circuit
and battery positive.
瀚慖f the test lamp does not illuminate, disconnect PIM connector X1 and test the ground circuit for an open, high resistance or short to
voltage condition.
瀚慖f the circuit tests normal, replace the PIM.
3. Connect a 3-amp fused jumper wire between each Direction IMS signal circuit at DT-48493 and the ground circuit terminal. The scan tool
parameter should display LOW for each signal circuit when grounded.
瀚慖f a scan tool parameter always displays HIGH, disconnect PIM connector X1 and test the circuit for an open, high resistance or short to
voltage condition.
瀚慖f the circuit tests normal, replace the PIM.
4. Disconnect the transmission 16-way X175 connector. Install DT-47825-10 to the vehicle harness. Connect a 3-amp fused jumper wire
between the Starter signal circuit terminal and ground. The scan tool parameter should display LOW when the signal circuit is grounded.
瀚慖f the scan tool parameter always displays HIGH, disconnect PIM connector X1 and test the circuit for an open, high resistance or short to
voltage condition.
瀚慖f the circuit tests normal, replace the PIM.
Important: The remaining diagnostic steps test the internal transmission components and circuits. The automatic transmission fluid
pan assembly must be removed in order to perform the diagnostic tests.
5. Disconnect the IMS connector at the switch.
Important: Connect one end of the DT-48493 to the transmission connector. Use the other end as the terminal testing point.
瀚慣est the direction signal circuits and the ground circuit between the IMS and the transmission 24-way X176 connector for a short to
ground, open, high resistance or short to voltage condition.
Important: Connect one end of the DT-47825-10 to the transmission connector. Use the other end as the terminal testing point.
瀚慣est the Starter signal circuit between the IMS and the transmission 16-way X175 connector for a short to ground, open, high resistance
or short to voltage condition. The TCM is a pass-through of the Starter signal circuit and should be tested as a typical circuit path.
瀚慖f the circuit, including the TCM, tests normal, replace the IMS switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Control Module References (See: Testing and Inspection/Programming and Relearning) for PIM or TCM replacement, setup, and
programming.
* Manual Shift Shaft Position Switch Replacement (See: Powertrain Management/Computers and Control Systems/Sensors and Switches -
Saturday, March 28, 2020
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 2039
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 2039
Circuit/System Verification
1. Engine running for 10 seconds.
2. Ignition ON, engine OFF, verify the DTC U0400-U05FF is not set.
瀚慖f the DTC U0400-U05FF is set along with other DTCs set, diagnose all other codes first. Refer to Diagnostic Trouble Code (DTC) List -
Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).
瀚慖f the DTC U0400-U05FF is set without other DTCs set, program the control module specified by the DTC descriptor. If the DTC resets,
replace the appropriate control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for control module replacement, setup, and programming
U1500
DTC U1500-U15BF
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
Refer to Control Module U Code List (See: Diagnostic Trouble Code Descriptions/Control Module U Code List).
Circuit/System Description
The serial data is transmitted over a Local Interconnect Network (LIN) single wire network circuit bus between a master control module and other
control modules within a particular subsystem. If serial data communication is lost between any of the control modules on the LIN bus network, a
no communication code against the non-communicating control module will be set. A master control module is the one that reports the non
communication code. Note: a loss of serial data communications DTC does not represent a failure of the master control module that set it.
Diagnostic Aids
* A control module may have a U-code stored in history that does not require any repairs. Issues with late or corrupted messages between
control modules can be temporary with no apparent symptom or complaint; this does not mean the control module is faulty. Do not replace a
control module based only on a history U-code.
* Do not replace a control module reporting a U-code. The U-code identifies which control module needs to be diagnosed for a communication
issue.
* Communication will be available between the master control module and the scan tool if there is a loss of communications with any of the
other control modules on the LIN bus network.
* An open in the LIN bus serial data circuit between the splice pack and a module will only affect that specific module. This type of failure will
set a loss of communication DTC for each control module affected and the other control modules will still communicate.
Reference Information
Schematic Reference
Data Communication Schematics (See: Powertrain Management/Computers and Control Systems/Information Bus/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
Data Link Communications Description and Operation (See: Powertrain Management/Computers and Control Systems/Information
Bus/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Sunday, March 8, 2020
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1238
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1238
Circuit/System Verification
1. Engine idling at the normal operating temperature, there should be no abnormal engine noise.
瀚慖f there is an abnormal engine noise, refer to Symptoms - Engine Mechanical (See: Engine, Cooling and Exhaust/Engine/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Engine Mechanical).
2. Verify that no other DTCs are set.
瀚慖f a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble
Code (DTC) List - Vehicle).
3. Observe the scan tool Misfire Current Cyl. 1-6 parameters. The Misfire Current Counters should not be incriminating.
4. Observe the scan tool Circuit Test Status parameters for the various components that may cause a misfire. Verify the Circuit Test Status
parameters for the components that may cause a misfire display OK or Not Run.
5. Engine idling, perform the cylinder power balance test with a scan tool to isolate the misfiring cylinder. The engine speed should change
when each injector is disabled.
6. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records data.
Circuit/System Testing
1. Verify that the following conditions do not exist:
* Vacuum hose splits, kinks, and incorrect connections
* Engine vacuum leaks
* Crankcase ventilation system for vacuum leaks
* Fuel pressure that is too low or too high-Refer to Fuel System Diagnosis (LF1 China) (See: Powertrain Management/Fuel Delivery and
Air Induction/Fuel Pump/Testing and Inspection/Fuel System Diagnosis (China))Fuel System Diagnosis (LF1 Except China) (See:
Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Testing and Inspection/Fuel System Diagnosis (Except China))Fuel
System Diagnosis (LAU China) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Testing and Inspection/Fuel
System Diagnosis (China))Fuel System Diagnosis (LAU Except China) (See: Powertrain Management/Fuel Delivery and Air
Induction/Fuel Pump/Testing and Inspection/Fuel System Diagnosis (Except China)).
* Contaminated Fuel-Refer to Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool) (See: Powertrain Management/Fuel Delivery and
Air Induction/Fuel/Testing and Inspection/Alcohol/Contaminants-in-Fuel Diagnosis (Special Tool))Alcohol/Contaminants-in-Fuel
Diagnosis (Without Special Tool) (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component
Tests and General Diagnostics/Alcohol/Contaminants-in-Fuel Diagnosis (Without Special Tool)).
* Exhaust system restrictions
瀚慖f you find any of the above conditions, repair as necessary.
2. Ignition OFF, remove the appropriate T8 ignition coil of the misfiring cylinder, but leave the electrical connector connected.
3. Inspect the ignition coil boot for the following conditions:
* Holes
* Tears
* Carbon tracking
* Oil contamination
* water intrusion
瀚慖f you find any of the above conditions, repair as necessary.
4. Remove the fuel pump fuse from the fuse block.
5. Install the J 26792 to the boot of the appropriate T8 ignition coil and ground.
Note: An erratic or weak spark is considered a no spark condition.
6. Attempt to start the engine and observe the J 26792 . The spark tester should spark.
瀚慖f there is no spark, refer to Electronic Ignition System Diagnosis (See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Component Tests and General Diagnostics/Electronic Ignition System Diagnosis) for diagnosis of the T8
ignition coil.
7. Ignition OFF, remove the spark plug from the misfiring cylinder. Verify that the spark plug does not exhibit the following conditions:
* Gas, coolant, or oil fouled-Refer to Spark Plug Inspection (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance
Checks/Spark Plug/Testing and Inspection).
* Cracked, worn, incorrectly gapped-Refer to Ignition System Specifications (LAU) (See: Powertrain Management/Ignition
System/Specifications)Ignition System Specifications (LF1) (See: Powertrain Management/Ignition System/Specifications).
Tuesday, March 3, 2020
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1448
2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1448
Circuit/System Verification
1. Engine running. Let the engine run for at least 1 min.
2. Ignition OFF for at least 30 s to allow for the complete shutdown of the TCM.
3. Ignition ON, verify that DTC P0602 is not set.
瀚慖f the DTC is set, program the TCM. If the DTC resets, replace the TCM.
4. Observe the DTC information with a scan tool. DTCs P0601, P0603, P0604 should not set.
瀚慖f a DTC sets, replace the TCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for TCM replacement, setup, and
programming.
* Perform the Transmission Adaptive Functions (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and
Operation/AF40-6 - Automatic Transmission/Transmission Adaptive Functions).
ECM
DTC P0602-P0606, P0610, P0614, P0630, P06D1, P160D, P160E, P161C, or P2610 (ECM, LAU/LBW)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0602
- Control Module Not Programmed
DTC P0603
- Control Module Long Term Memory Reset
DTC P0604
- Control Module Random Access Memory Performance
DTC P0605
- Control Module Programming Read Only Memory Performance
DTC P0606
- Control Module Processor Performance
DTC P0610
- Control Module Vehicle Options Incorrect
DTC P0614
- Engine Control Module/Transmission Control Module Programming Not Plausible
DTC P0630
- VIN Not Programmed or Mismatched - Engine Control Module (ECM)
DTC P06D1
- Control Module Ignition Coil System Circuitry Performance
DTC P160D
- Incorrect Engine Calibration Detected
DTC P160E
- Engine Calibration Monitoring Not Programmed
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