Showing posts with label P0141. Show all posts
Showing posts with label P0141. Show all posts

Friday, November 13, 2020

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2061

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2061

P0125, P0128, P0130, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0140, P0141, P0171, P0172, P0201, P0202, P0203,

P0204, P0205, P0206, P0207, P0208, P0220, P0300, P0315, P0326, P0327, P0336, P0340, P0341, P0442, P0446, P0452, P0453, P0455,

P0496, P0500, P0502, P0506, P0507, P0601, P0602, P0606, P0641, P0722, P0723, P1133, P1134, P1516, P1621, P2135, P2138, P2176 are

not set.

* Before the ECM performs the idle test, the vehicle must be driven under the following conditions:

- The engine speed is greater than 1,300 RPM.

- The engine run time is greater than 100 s.

- Both conditions exist for greater than 16 s.

* The vehicle speed is less than 1.6 km/h (1 mph).

* The throttle position is less than 2 %.

* The mass air flow (MAF) is between 2-21 g/s.

* The engine is operating in Closed Loop.

* The fuel trim learn is enabled.

* The engine coolant temperature (ECT) is between 45-129掳C (113-264掳F).

* The barometric pressure (BARO) is greater than 70 kPa.

* The Catalytic Converter Calculated Temperature parameter is between 600-900掳C (1,112-1,652掳F) for greater than 6 min.

* The intake air temperature (IAT) is between -20 and +250掳C (-4 and +482掳F).

* The battery voltage is greater than 11 V.

* The transmission is in Drive Range-Automatic transmissions only.

* The short term fuel trim is between -10 and +10 %.

* The engine is idling for less than 50 s.

* This diagnostic attempts one test during each valid idle period when the above conditions have been met. This diagnostic attempts up to 8

tests during each drive cycle.

Conditions for Setting the DTC

The ECM has determined the catalyst efficiency has degraded below a calibrated threshold.

Action Taken When the DTC Sets

DTCs P0420 and P0430 are Type A DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0420 and P0430 are Type A DTCs.

Reference Information

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Electrical Information Reference

Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle)

Circuit/System Verification

1. Verify that no other DTCs are 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).

2. Operate the vehicle within the Conditions for Running the DTC while observing the scan tool Catalyst monitor Not At Idle Test Conditions

Met parameter. The parameter will change to Yes when the OFF Idle Conditions have been met.

瀚慖f not the specified value, operate the vehicle within the OFF Idle Conditions.

3. When the parameter has changed to Yes and the conditions are safe, stop and idle the vehicle in gear.

4. Apply the service brake.

5. Monitor the scan tool Catalyst Monitor Test State parameter. When the parameter indicates Active, the Catalyst Monitor Test is running.

6. Continue to monitor the parameter. When the parameter indicates Inactive, the Catalyst Monitor Test has completed.

7. When the test has completed, the Catalyst Monitor Test Counter Bank 1 or Bank 2 parameter will increment by one and the Catalyst Monitor

Test Result Bank 1 or Bank 2 parameter will indicate Pass, Fail, or No Decision.

瀚慖f no decision has been made, repeat steps 2-6 until the Test Result parameter indicates a Pass or Fail.

Circuit/System Testing

Sunday, November 1, 2020

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1792

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1792

P0134, P0135, P0137, P0138, P013A, P013B, P013E, P013F, P0140, P0141, P0171, P0172, P0201, P0202, P0203, P0204, P0220, P0222,

P0223, P0300, P0442, P0443, P0446, P0449, P0455, P0496, P1133, P1174, P1516, P2101, P2119, P2135, P2176, P2270, P2271, P2A00 are

not set.

* The ignition 1 voltage is between 10-32 V.

* The learned heater resistance is valid.

* The fuel level is greater than 10 %.

* The engine run time is equal to or greater than 5 minutes.

* The DTCs run once per ignition cycle when the above conditions are met.

Conditions for Setting the DTC

P0133 or P0153

* The ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is greater than a calibrated value.

* The DTCs set within 100 s when the above condition is met.

P013A or P013C

The ECM detects that the accumulated mass air flow monitored during rich-to-lean transitions between 450-150 mV is greater than 75 grams.

P013B or P013D

The ECM detects that the accumulated mass air flow monitored during lean-to-rich transitions between 350-650 mV is greater than 75 grams.

P013E or P014A

The ECM detects that the O2 sensor voltage has not decreased below 450 mV within 42 grams of accumulated air flow.

P013F or P014B

The ECM detects that the O2 sensor voltage has not increased above 350 mV within 200 grams of accumulated air flow.

P1133 or P1153

* The ECM detects that the HO2S 1 rich-to-lean counts, or the lean-to-rich counts are less than a calibrated value.

* The DTCs set within 100 s when the above condition is met.

Action Taken When the DTC Sets

DTCs P0133, P013A, P013B, P013C, P013D, P013E, P013F, P014A, P014B, P0153, P1133, and P1153 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P0133, P013A, P013B, P013C, P013D, P013E, P013F, P014A, P014B, P0153, P1133, and P1153 are Type B DTCs.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

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

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

* Heated Oxygen Sensor Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical

Diagnostic Procedures/Wiring Repairs/Heated Oxygen Sensor Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Saturday, November 30, 2019

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1104

2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 1104



P0141



* Before the ECM can report DTC P0135 and P0141 failed, DTCs P0036, P0037, and P0038 must run and pass.



* DTCs P0137, P0138, or P0140 are not set.



* The engine is operating.



* The ignition voltage is 10-18 volts.



* The intake air temperature (IAT) is greater than -30掳C (-22掳F).



* After the previous ignition cycle the engine OFF time was greater than 0 seconds.



* The calculated exhaust temperature is 360-500掳C (680-932掳F).



* The engine is not in decel fuel cut-off (DFCO).



* The internal HO2S 2 resistance is less than 10,000 ohm.



* The HO2S 2 heater is enabled for greater than 120 seconds.



* DTCs P0135 and P0141 run continuously once the above conditions are met for approximately 100 seconds.



Conditions for Setting the DTC



The ECM detects that the internal resistance of an HO2S 1 or HO2S 2 heater is not within the expected range.



Action Taken When the DTC Sets



DTCs P0135 and P0141 are Type B DTCs.



Conditions for Clearing the MIL/DTC



DTCs P0135 and P0141 are Type B DTCs.



Reference Information



Schematic Reference



Engine Controls Schematics (LAU) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)Engine Controls Schematics



(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)



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



Procedures/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General



Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring



Repairs/Wiring Repairs)



DTC Type Reference



Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code



(DTC) Type Definitions)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information



Circuit/System Verification



Note: It may take up to 8 minutes for the DTC to set.



1. With the engine at normal operating temperature, operate the engine above 1,200 RPM for 2 minutes and then allow the engine to idle. DTCs



P0135 or P0141 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. Ignition OFF, disconnect the harness connector at the appropriate B52 HO2S.



2. Ignition ON, test for B+ on the HO2S ignition circuit terminal 1 of the HO2S harness connector.



瀚慖f less than the specified value, repair the ignition voltage circuit of the HO2S heater for a short to ground or an open/high resistance.



3. Ignition OFF, connect a test lamp between the heater control circuit terminal 2 and B+. The test light should not illuminate.

Saturday, November 2, 2019

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1893

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1893

P0134, P0135, P0137, P0138, P013A, P013B, P013E, P013F, P0140, P0141, P0171, P0172, P0201, P0202, P0203, P0204, P0220, P0222,

P0223, P0300, P0442, P0443, P0446, P0449, P0455, P0496, P1133, P1174, P1516, P2101, P2119, P2135, P2176, P2270, P2271, P2A00 are

not set.

* The ignition 1 voltage is between 10-32 V.

* The learned heater resistance is valid.

* The fuel level is greater than 10 %.

* The engine run time is equal to or greater than 5 minutes.

* The DTCs run once per ignition cycle when the above conditions are met.

Conditions for Setting the DTC

P0133 or P0153

* The ECM detects that the HO2S 1 rich-to-lean or lean-to-rich average response time is greater than a calibrated value.

* The DTCs set within 100 s when the above condition is met.

P013A or P013C

The ECM detects that the accumulated mass air flow monitored during rich-to-lean transitions between 450-150 mV is greater than 75 grams.

P013B or P013D

The ECM detects that the accumulated mass air flow monitored during lean-to-rich transitions between 350-650 mV is greater than 75 grams.

P013E or P014A

The ECM detects that the O2 sensor voltage has not decreased below 450 mV within 42 grams of accumulated air flow.

P013F or P014B

The ECM detects that the O2 sensor voltage has not increased above 350 mV within 200 grams of accumulated air flow.

P1133 or P1153

* The ECM detects that the HO2S 1 rich-to-lean counts, or the lean-to-rich counts are less than a calibrated value.

* The DTCs set within 100 s when the above condition is met.

Action Taken When the DTC Sets

DTCs P0133, P013A, P013B, P013C, P013D, P013E, P013F, P014A, P014B, P0153, P1133, and P1153 are Type B DTCs.

Conditions for Clearing the DTC

DTCs P0133, P013A, P013B, P013C, P013D, P013E, P013F, P014A, P014B, P0153, P1133, and P1153 are Type B DTCs.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

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

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

* Heated Oxygen Sensor Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical

Diagnostic Procedures/Wiring Repairs/Heated Oxygen Sensor Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information