Showing posts with label Component Testing. Show all posts
Showing posts with label Component Testing. Show all posts

Friday, November 20, 2020

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2236

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2236

Component Testing

Note: Depending on the application, the relay coil resistance will be within one of the following ranges.

1. Test for one of the following resistance specifications between terminals 85 and 86 of the KR75 powertrain relay:

* 70-100 ohm

* 200-250 ohm

瀚慖f not within the specified range, replace the KR75 powertrain relay.

2. Test for the infinite resistance between the following terminals to the KR75 powertrain relay:

* 30 and 86

* 30 and 87

* 30 and 85

* 85 and 87

瀚慖f not the specified value, replace the KR75 powertrain relay.

3. Install a 20 A fused jumper wire between relay terminal 85 and 12 V. Install a jumper wire between relay terminal 86 and ground. Test for

less than 2 ohm between terminals 30 and 87.

瀚慖f greater than the specified range, replace the KR75 powertrain relay.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Relay Replacement (Attached to Wire Harness) (See: Power and Ground Distribution/Power Distribution Relay/Service and Repair/Relay

Replacement (Attached to Wire Harness))Relay Replacement (Within an Electrical Center) (See: Power and Ground Distribution/Power

Distribution Relay/Service and Repair/Relay Replacement (Within an Electrical Center))

* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming

P0689

DTC P0685, P0689, or P0690

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 P0685

- Engine Controls Ignition Relay Control Circuit

DTC P0689

- Engine Controls Relay Feedback Circuit Low Voltage

DTC P0690

- Engine Controls Relay Feedback Circuit High Voltage

Diagnostic Fault Information

Typical Scan Tool Data

Sunday, October 25, 2020

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1625

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1625

Component Testing

Static Test

1. Ignition OFF, remove the Camshaft Position Actuator Magnet.

2. Test for 5.0-9.0 ohm between the solenoid control terminal 2 and the low reference terminal 1 at the Camshaft Position Actuator Magnet.

瀚慖f not within the specified range, replace the Camshaft Position Actuator Magnet.

3. Test for infinite resistance between each terminal of the magnet and the magnet housing.

瀚慖f not the specified value, replace the Camshaft Position Actuator Magnet.

Dynamic Test

1. Remove the Camshaft Position Actuator Magnet.

Note:

* The Camshaft Position Actuator Magnet pintle should be facing downward for this test.

* Do not allow electrical current to flow through the Camshaft Position Actuator Magnet for greater than 1-2 s.

2. Install a 20 A fused jumper wire between the control circuit terminal 2 and 12 V. Momentarily install a jumper wire between the low

reference terminal 1 and ground. The pintle should extent.

瀚慖f the function does not perform as specified, replace the Camshaft Position Actuator Magnet.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Camshaft Position Actuator Cleaning and Inspection (See: Engine, Cooling and Exhaust/Engine/Service and Repair/Overhaul/45. Camshaft

Position Actuator Cleaning and Inspection)

* Camshaft Position Actuator Magnet Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Magnet Replacement)

* Camshaft Position Actuator Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push Rods/Camshaft/Service

and Repair/Camshaft Position Actuator Replacement)

* Camshaft Position Actuator Solenoid Valve Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Solenoid Valve Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P013A

DTC P0133, P013A-P013F, P014A, P014B, P0153, P1133, or P1153

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 P0133

- HO2S Slow Response Bank 1 Sensor 1

DTC P013A

- HO2S Slow Response Rich to Lean Bank 1 Sensor 2

DTC P013B

- HO2S Slow Response Lean to Rich Bank 1 Sensor 2

DTC P013C

- HO2S Slow Response Rich to Lean Bank 2 Sensor 2

DTC P013D

- HO2S Slow Response Lean to Rich Bank 2 Sensor 2

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1622

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1622

Component Testing

Static Test

1. Ignition OFF, remove the Camshaft Position Actuator Magnet.

2. Test for 5.0-9.0 ohm between the solenoid control terminal 2 and the low reference terminal 1 at the Camshaft Position Actuator Magnet.

瀚慖f not within the specified range, replace the Camshaft Position Actuator Magnet.

3. Test for infinite resistance between each terminal of the magnet and the magnet housing.

瀚慖f not the specified value, replace the Camshaft Position Actuator Magnet.

Dynamic Test

1. Remove the Camshaft Position Actuator Magnet.

Note:

* The Camshaft Position Actuator Magnet pintle should be facing downward for this test.

* Do not allow electrical current to flow through the Camshaft Position Actuator Magnet for greater than 1-2 s.

2. Install a 20 A fused jumper wire between the control circuit terminal 2 and B+. Momentarily install a jumper wire between the low reference

terminal 1 and ground. The pintle should extent.

瀚慖f the function does not perform as specified, replace the Camshaft Position Actuator Magnet.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Camshaft Position Actuator Magnet Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Magnet Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P0011

DTC P0011

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 P0011

- Camshaft Position (CMP) System Performance

Diagnostic Fault Information

Circuit/System Description

The camshaft position (CMP) actuator system enables the engine control module (ECM) to change the timing of the camshaft while the engine is

operating. The ECM controls the Camshaft Position Actuator Magnet duty cycle by controlling the amount of ON time. The magnet controls the

amount of engine oil flow to the CMP actuator by extending a pintle within the solenoid. The pintle acts against a spool valve in the CMP actuator

mechanism which is attached to the front of the camshaft. As the spool valve is moved, oil is directed to the CMP actuator, which rotates the

camshaft. The ECM can only command the camshaft position actuator to retard the valve timing from the camshaft park position, or advance the

valve timing back to the park position. The total range of valve timing command is 26 degree as measured at the camshaft or 52 degree as measured

Monday, January 20, 2020

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1055

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1055



Component Testing



1. Ignition OFF, disconnect the harness connector at the B65 Intake Manifold Pressure and Air Temperature sensor.



Note: A thermometer can be used to test the sensor off the vehicle.



2. Test the IAT sensor by varying the sensor temperature while monitoring the sensor resistance. Compare the readings with the Temperature



Versus Resistance - Intake Air Temperature Sensor (See: Powertrain Management/Computers and Control



Systems/Specifications/Temperature Versus Resistance - Intake Air Temperature Sensor) table and verify that the resistance is within 5 % of



the specification.



瀚慖f not within the specified range, replace the B65 Intake Manifold Pressure and Air Temperature sensor.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Turbocharger Pressure Sensor Replacement (See: Powertrain Management/Fuel Delivery and Air Induction/Turbocharger/Service and



Repair/Turbocharger Pressure Sensor Replacement)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for engine control module replacement, setup, and



programming



P0112



DTC P0111-P0114 (LAU)



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 P0111



- Intake Air Temperature (IAT) Sensor Circuit Performance



DTC P0112



- Intake Air Temperature (IAT) Sensor Circuit Low Voltage



DTC P0113



- Intake Air Temperature (IAT) Sensor Circuit High Voltage



DTC P0114



- Intake Air Temperature (IAT) Sensor Intermittent



Diagnostic Fault Information



Typical Scan Tool Data

Wednesday, December 4, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 661

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 661

Component Testing

Tilt Switch

1. Ignition OFF, disconnect the harness connector at the tilt switch.

2. Test for infinite resistance between the control terminals A and C with the switch in the neutral position.

瀚慖f less than the specified range, replace the tilt switch.

3. Test for less than 1 ohm between the control terminals listed below and the B+ terminal B with the switch in each appropriate position.

* Tilt Up Switch terminal C

* Tilt Down Switch terminal A

瀚慖f greater than the specified value, replace the tilt switch.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Steering Column Tilt Wheel Switch Replacement (See: Sensors and Switches/Sensors and Switches - Steering and Suspension/Sensors and

Switches - Steering/Tilt Wheel Switch/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for MSM replacement, setup, and programming

B2880

DTC B2860 or B2880

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 B2880 01

- Tilt Position Sensor Circuit Short to Battery

DTC B2880 06

- Tilt Position Sensor Circuit Short to Ground or Open

DTC B2880 5A

- Tilt Position Sensor Circuit Plausibility Failure

DTC B2880 61

- Tilt Position Sensor Actuator Stuck

Diagnostic Fault Information

Circuit Description

The memory seat module (MSM) determines the position of the steering column based on inputs received from the tilt position sensors built into

Friday, November 15, 2019

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1866

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1866



Component Testing



1. Ignition OFF, disconnect the KR25 secondary air injection pump relay.



2. Test for 70-110 ohm between terminals 85 and 86.



瀚慖f the resistance is not within the specified range, replace the KR25 secondary air injection pump relay.



3. Test for infinite resistance between the following terminals:



* 86 and 87



* 86 and 30



* 85 and 87



* 87 and 30



瀚慖f not the specified value, replace the KR25 secondary air injection pump relay.



4. Install a 20 A fused jumper wire between relay terminal 86 and B+. Install a jumper wire between relay terminal 85 and ground. Test for less



than 2 ohm between terminals 87 and 30.



瀚慖f greater than the specified range, replace the KR25 secondary air injection pump relay.



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 engine control module replacement, setup, and



programming



P2261



DTC P2261



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 P2261



- Turbocharger Bypass Valve Stuck



Circuit/System Description



The turbocharger incorporates a wastegate that is controlled by a pressure differential, that is determined by the engine control module (ECM) by



means of a pulse width modulation (PWM) solenoid valve , in order to regulate the pressure ratio. A charge air bypass valve is integrated within the



unit, and is also controlled by the ECM by utilizing a remotely mounted solenoid valve to prevent surging and damage from vibrations by opening



during abrupt closed throttle conditions. When the bypass valve is commanded open during closed throttle deceleration conditions, the bypass valve



allows the air to recirculate in the turbocharger and maintain speed. Within a calibrated range during the closed throttle event, or upon a wide open



throttle command, the bypass valve will then close to optimize turbocharger response.



The purpose of this diagnostic is to determine if the charge air bypass valve is stuck closed. The ECM will first verify the integrity of the following



sensors. The ECM then compares the actual measured mass air flow to a modeled airflow that is derived from these inputs:



* The throttle position



* The engine speed



* Intake Air (Boost) Pressure and Temperature Sensor



* Barometric Pressure (BARO)



Conditions for Running the DTC



* DTC P0101, P0111, P0112, P0113, or P0114 is not set.



* The boost pressure versus BARO ratio is between 1.1-3.2.



* The charge air bypass valve has been commanded ON for greater than 1 s immediately after an abrupt closed throttle has occurred and the

Wednesday, November 6, 2019

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1205

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1205

Component Testing

Temperature Sensor Test

Note: A thermometer can be used to test the sensor off vehicle in heated water.

1. Test the generator control module coolant temperature sensor by varying the sensor temperature while monitoring the sensor resistance.

2. Compare the readings with the Temperature Versus Resistance ().

瀚慖f not within the specified range, replace the generator control module coolant temperature sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Coolant Temperature Sensor Replacement (Generator Control Module) ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for engine control module replacement, setup, and

programming

P0A3F

DTC P0A3F

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 P0A3F

- Drive Motor 1 Position Sensor Circuit

Diagnostic Fault Information

Circuit/System Description

Thursday, October 31, 2019

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1726

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1726

Component Testing

Static Test

1. Ignition OFF, remove the Camshaft Position Actuator Magnet.

2. Test for 5.0-9.0 ohm between the solenoid control terminal 2 and the low reference terminal 1 at the Camshaft Position Actuator Magnet.

锟斤拷If not within the specified range, replace the Camshaft Position Actuator Magnet.

3. Test for infinite resistance between each terminal of the magnet and the magnet housing.

锟斤拷If not the specified value, replace the Camshaft Position Actuator Magnet.

Dynamic Test

1. Remove the Camshaft Position Actuator Magnet.

Note:

* The Camshaft Position Actuator Magnet pintle should be facing downward for this test.

* Do not allow electrical current to flow through the Camshaft Position Actuator Magnet for greater than 1-2 s.

2. Install a 20 A fused jumper wire between the control circuit terminal 2 and 12 V. Momentarily install a jumper wire between the low

reference terminal 1 and ground. The pintle should extent.

锟斤拷If the function does not perform as specified, replace the Camshaft Position Actuator Magnet.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Camshaft Position Actuator Cleaning and Inspection (See: Engine, Cooling and Exhaust/Engine/Service and Repair/Overhaul/45. Camshaft

Position Actuator Cleaning and Inspection)

* Camshaft Position Actuator Magnet Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Magnet Replacement)

* Camshaft Position Actuator Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push Rods/Camshaft/Service

and Repair/Camshaft Position Actuator Replacement)

* Camshaft Position Actuator Solenoid Valve Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Solenoid Valve Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P013A

DTC P0133, P013A-P013F, P014A, P014B, P0153, P1133, or P1153

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 P0133

- HO2S Slow Response Bank 1 Sensor 1

DTC P013A

- HO2S Slow Response Rich to Lean Bank 1 Sensor 2

DTC P013B

- HO2S Slow Response Lean to Rich Bank 1 Sensor 2

DTC P013C

- HO2S Slow Response Rich to Lean Bank 2 Sensor 2

DTC P013D

- HO2S Slow Response Lean to Rich Bank 2 Sensor 2

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1723

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1723

Component Testing

Static Test

1. Ignition OFF, remove the Camshaft Position Actuator Magnet.

2. Test for 5.0-9.0 ohm between the solenoid control terminal 2 and the low reference terminal 1 at the Camshaft Position Actuator Magnet.

锟斤拷If not within the specified range, replace the Camshaft Position Actuator Magnet.

3. Test for infinite resistance between each terminal of the magnet and the magnet housing.

锟斤拷If not the specified value, replace the Camshaft Position Actuator Magnet.

Dynamic Test

1. Remove the Camshaft Position Actuator Magnet.

Note:

* The Camshaft Position Actuator Magnet pintle should be facing downward for this test.

* Do not allow electrical current to flow through the Camshaft Position Actuator Magnet for greater than 1-2 s.

2. Install a 20 A fused jumper wire between the control circuit terminal 2 and B+. Momentarily install a jumper wire between the low reference

terminal 1 and ground. The pintle should extent.

锟斤拷If the function does not perform as specified, replace the Camshaft Position Actuator Magnet.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Camshaft Position Actuator Magnet Replacement (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Magnet Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P0011

DTC P0011

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 P0011

- Camshaft Position (CMP) System Performance

Diagnostic Fault Information

Circuit/System Description

The camshaft position (CMP) actuator system enables the engine control module (ECM) to change the timing of the camshaft while the engine is

operating. The ECM controls the Camshaft Position Actuator Magnet duty cycle by controlling the amount of ON time. The magnet controls the

amount of engine oil flow to the CMP actuator by extending a pintle within the solenoid. The pintle acts against a spool valve in the CMP actuator

mechanism which is attached to the front of the camshaft. As the spool valve is moved, oil is directed to the CMP actuator, which rotates the

camshaft. The ECM can only command the camshaft position actuator to retard the valve timing from the camshaft park position, or advance the

valve timing back to the park position. The total range of valve timing command is 26 degree as measured at the camshaft or 52 degree as measured

Saturday, October 26, 2019

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1205

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1205

Component Testing

Temperature Sensor Test

Note: A thermometer can be used to test the sensor off vehicle in heated water.

1. Test the generator control module coolant temperature sensor by varying the sensor temperature while monitoring the sensor resistance.

2. Compare the readings with the Temperature Versus Resistance ().

锟斤拷If not within the specified range, replace the generator control module coolant temperature sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Coolant Temperature Sensor Replacement (Generator Control Module) ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for engine control module replacement, setup, and

programming

P0A3F

DTC P0A3F

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 P0A3F

- Drive Motor 1 Position Sensor Circuit

Diagnostic Fault Information

Circuit/System Description