Showing posts with label Conditions for Running the DTCs. Show all posts
Showing posts with label Conditions for Running the DTCs. Show all posts

Friday, October 30, 2020

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1742

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1742

Conditions for Running the DTCs

* DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0335, P0336 are not set.

* The engine speed is between 450-8,000 RPM.

* The IAT Sensor parameter is between -20 and +125掳C (-4 and +257掳F).

* The ECT Sensor parameter is between 70 and 125掳C (158 and 257掳F).

* This DTC runs continuously within the enabling conditions.

Conditions for Setting the DTC

The engine control module (ECM) detects that the actual measured airflow from the MAF, MAP, and TP sensors is not within range of the

calculated airflow that is derived from the system of models for more than 0.5 s.

Action Taken When the DTC Sets

DTCs P0101 and P1101 are Type B DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0101 and P1101 are Type B DTCs.

Diagnostic Aids

* A steady or intermittent high resistance of 15 ohm or greater on the ignition voltage circuit will cause the MAF sensor signal to be increased

by as much as 60 g/s. To pinpoint this condition perform a voltage drop test on the circuit.

* Any type of contamination on the MAF sensor heating elements will degrade the proper operation of the sensor. Certain types of

contaminants act as a heat insulator, which will impair the response of the sensor to airflow changes. Water or snow can create the opposite

effect, and cause the signal to increase rapidly.

* Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT

signal circuit will increase or decrease the MAF sensor signal that is interpreted by the ECM. Additionally it may cause a rapid fluctuation in

the IAT Sensor parameter.

* A skewed or stuck engine coolant temperature (ECT) or IAT sensor will cause the calculated models to be inaccurate and may cause this

DTC to run when it should not. Refer to Temperature Versus Resistance (See: Powertrain Management/Computers and Control

Systems/Specifications/Temperature Versus Resistance).

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

Tuesday, October 13, 2020

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1542

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1542



Conditions for Running the DTCs



P0638 and P2101



* The ignition is ON or the engine is operating.



* The ignition voltage is greater than 7 V.



* Throttle position adaptation is not active.



* DTCs P0638 and P2101 run continuously once the above conditions are met for greater than 5 s.



P2100



* Before the ECM can report DTC P2100 failed, DTC P2101 must run and pass.



* The ignition is ON or the engine is operating.



* DTC P2100 runs continuously once the above conditions are met.



P2119



* DTC P0111, P0112, P0113, P0116, P0117, P0118, P0119, P0700, P2122, P2123, P2127, P2128, or P2138 is not set.



* The ignition is ON.



* The vehicle speed is 0 km/h (0 mph).



* The engine speed is less than 40 RPM.



* The engine coolant temperature (ECT) is 5-100掳C (41-212掳F).



* The intake air temperature (IAT) is 5-143掳C (41-290掳F).



* The ignition voltage is greater than 10 V.



* The accelerator pedal position (APP) is less than 15 percent.



* DTC P2119 runs once per ignition cycle when the above conditions are met for less than 1 second.



Conditions for Setting the DTC



P0638



* The ECM detects that the commanded duty cycle for the range test high is greater than 80 percent.



OR



* The ECM detects that the commanded duty cycle for the range test low is greater than 80 percent.



* Either condition exists for greater than 1 second, or a cumulative of 10 s.



P2100



The ECM detects the output circuit for the TAC motor is open, shorted to ground, or shorted to a voltage. The condition exists fro greater than 1 s.



P2101



The ECM detects a 4-50 percent difference between the commanded and the actual throttle plate position, dependant upon the rate of commanded



throttle movement. The condition exists for 1 s.



P2119



The ECM determines that the throttle valve did not return to the rest position within 1 second. The condition exists for greater than 1 s.



Action Taken When the DTC Sets



DTCs P0638, P2100, P2101, and P2119 are Type A DTCs.



Conditions for Clearing the DTC



DTCs P0638, P2100, P2101, and P2119 are Type A DTCs.



Diagnostic Aids



Inspect for a condition in which the throttle valve may have been held open. For example, ice may have formed in the throttle bore causing the



throttle valve not to close.



Reference Information



Schematic Reference



Engine Controls Schematics (LLT) (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)



Description and Operation



Throttle Actuator Control (TAC) System Description (See: Powertrain Management/Computers and Control Systems/Description and

Tuesday, August 25, 2020

2010 Cadillac Truck SRX AWD V6-3.0L Page 1113

2010 Cadillac Truck SRX AWD V6-3.0L Page 1113



Conditions for Running the DTCs



* DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0335 or P0336 are not set.



* The engine is running.



* The engine coolant is between 69 and 127掳C (156 and 261掳F).



* The intake air temperature is between -20 and +125掳C (-4 and +257掳F).



* The DTC runs continuously when the above conditions are met.



Conditions for Setting the DTC



The engine control module (ECM) detects that the actual measured airflow from the MAF, MAP, and throttle position sensors is not within range of



the calculated airflow that is derived from the system of models for greater than 2 s.



Action Taken When the DTC Sets



DTC P0101 is a Type B DTC.



Conditions for Clearing the MIL/DTC



DTC P0101 is a Type B DTC.



Diagnostic Aids



* A steady or intermittent high resistance of 15 ohm or greater on the ignition voltage circuit will cause the MAF sensor signal to be increased



by as much as 60 g/s.



* Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT



signal circuit will cause the MAF sensor signal to be skewed or erratic. Additionally, it may cause a rapid fluctuation in the IAT Sensor



parameter.



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)

Friday, June 19, 2020

2010 Cadillac Truck Escalade RWD V8-6.2L Page 1742

2010 Cadillac Truck Escalade RWD V8-6.2L Page 1742

Conditions for Running the DTCs

* DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0335, P0336 are not set.

* The engine speed is between 450-8,000 RPM.

* The IAT Sensor parameter is between -20 and +125掳C (-4 and +257掳F).

* The ECT Sensor parameter is between 70 and 125掳C (158 and 257掳F).

* This DTC runs continuously within the enabling conditions.

Conditions for Setting the DTC

The engine control module (ECM) detects that the actual measured airflow from the MAF, MAP, and TP sensors is not within range of the

calculated airflow that is derived from the system of models for more than 0.5 s.

Action Taken When the DTC Sets

DTCs P0101 and P1101 are Type B DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0101 and P1101 are Type B DTCs.

Diagnostic Aids

* A steady or intermittent high resistance of 15 ohm or greater on the ignition voltage circuit will cause the MAF sensor signal to be increased

by as much as 60 g/s. To pinpoint this condition perform a voltage drop test on the circuit.

* Any type of contamination on the MAF sensor heating elements will degrade the proper operation of the sensor. Certain types of

contaminants act as a heat insulator, which will impair the response of the sensor to airflow changes. Water or snow can create the opposite

effect, and cause the signal to increase rapidly.

* Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT

signal circuit will increase or decrease the MAF sensor signal that is interpreted by the ECM. Additionally it may cause a rapid fluctuation in

the IAT Sensor parameter.

* A skewed or stuck engine coolant temperature (ECT) or IAT sensor will cause the calculated models to be inaccurate and may cause this

DTC to run when it should not. Refer to Temperature Versus Resistance (See: Powertrain Management/Computers and Control

Systems/Specifications/Temperature Versus Resistance).

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

Wednesday, February 5, 2020

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1854

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1854



Conditions for Running the DTCs



* The ignition is ON or the engine is operating.



* The ignition voltage is greater than 7 V.



* The DTCs run continuously once the above conditions are met.



Conditions for Setting the DTC



P2122



The APP sensor 1 voltage is less than 0.74 V for greater than 1 s.



P2123



The APP sensor 1 voltage is greater than 4.82 V for greater than 1 s.



P2127



The APP sensor 2 voltage is less than 0.63 V for greater than 1 s.



P2128



The APP sensor 2 voltage is greater than 4.82 V for greater than 1 s.



P2138



* The ECM detects that the voltage difference between APP sensor 1 and the calculated idle range is greater than 0.25 V, with a released pedal.



* The ECM detects that the voltage difference between APP sensor 2 and the calculated idle range is greater than 0.31 V, with a released pedal.



* The ECM detects that the voltage difference between APP sensor 1 and 2 is greater than 0.31 V with a partially pressed pedal.



* The ECM detects that the voltage difference between APP sensor 1 and 2 is greater than 1.70 V with a fully pressed pedal.



* The ECM detects that the voltage difference between APP sensor 1 and 2 is greater than 0.04 V when APP sensor 1 is greater than 1.17 V.



* Any of the above conditions exist for greater than 1 second, or a cumulative of 10 s.



Action Taken When the DTC Sets



DTCs P2122, P2123, P2127, P2128, and P2138 are Type A DTCs.



Conditions for Clearing the DTC



DTCs P2122, P2123, P2127, P2128, and P2138 are Type A DTCs.



Diagnostic Aids



Test the current output of the 5 V reference circuits if you suspect high resistance in the circuit. The current output should be greater than 80 mA



for APP 1 and greater than 50 mA for APP 2.



Reference Information



Schematic Reference



Engine Controls Schematics (LLT) (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)



Description and Operation



Throttle Actuator Control (TAC) System Description (See: Powertrain Management/Computers and Control Systems/Description and



Operation/Throttle Actuator Control (TAC) System Description)



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)



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



Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/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)

Friday, November 1, 2019

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1843

2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 1843

Conditions for Running the DTCs

* DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0128, P0335, P0336 are not set.

* The engine speed is between 450-8,000 RPM.

* The IAT Sensor parameter is between -20 and +125锟斤拷C (-4 and +257锟斤拷F).

* The ECT Sensor parameter is between 70 and 125锟斤拷C (158 and 257锟斤拷F).

* This DTC runs continuously within the enabling conditions.

Conditions for Setting the DTC

The engine control module (ECM) detects that the actual measured airflow from the MAF, MAP, and TP sensors is not within range of the

calculated airflow that is derived from the system of models for more than 0.5 s.

Action Taken When the DTC Sets

DTCs P0101 and P1101 are Type B DTCs.

Conditions for Clearing the MIL/DTC

DTCs P0101 and P1101 are Type B DTCs.

Diagnostic Aids

* A steady or intermittent high resistance of 15 ohm or greater on the ignition voltage circuit will cause the MAF sensor signal to be increased

by as much as 60 g/s. To pinpoint this condition perform a voltage drop test on the circuit.

* Any type of contamination on the MAF sensor heating elements will degrade the proper operation of the sensor. Certain types of

contaminants act as a heat insulator, which will impair the response of the sensor to airflow changes. Water or snow can create the opposite

effect, and cause the signal to increase rapidly.

* Depending on the current ambient temperature, and the vehicle operating conditions, a MAF sensor signal circuit that is shorted to the IAT

signal circuit will increase or decrease the MAF sensor signal that is interpreted by the ECM. Additionally it may cause a rapid fluctuation in

the IAT Sensor parameter.

* A skewed or stuck engine coolant temperature (ECT) or IAT sensor will cause the calculated models to be inaccurate and may cause this

DTC to run when it should not. Refer to Temperature Versus Resistance (See: Powertrain Management/Computers and Control

Systems/Specifications/Temperature Versus Resistance).

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