SECTION 4 Powertrain DTC Charts and …

1 SECTION 4 Powertrain DTC Charts andDescriptionsContentsDiagnostic trouble code (DTC) Charts and DTC Charts and Descriptions4-1 Table of ContentsDiagnostic trouble code (DTC) Charts and DescriptionsNote:Refer to the applicable Workshop Manual SECTION to diagnose the body and chassis :An X equals any number 0 through 9 or the letter A through - Fuel Volume Regulator Control Circuit/OpenDescription:The Powertrain control module (PCM) monitors the fuel volume regulator (FVR) and fuelvolume regulator return (FVRRTN) circuits to the PCM for high and low Causes: Open in the FVR circuit Open in the FVRRTN circuit Open in the fuel volume regulator solenoid coilDiagnostic Aids:ApplicationKey On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Fuel Volume Regulator Control Circuit LowDescription:The Powertrain control module (PCM) monitors the fuel volume regulator (FVR) and fuelvolume regulator return (FVRRTN) circuits to the PCM for high and low Causes: FVR circuit short to ground FVRRTN circuit short to groundDiagnostic Aids:A FVRRTN circuit short to ground may damage the solenoid coil.

2 If P0001 is retrieved after acircuit repair, check the solenoid coil for an open On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Fuel Volume Regulator Control Circuit HighDescription:The Powertrain control module (PCM) monitors the fuel volume regulator (FVR) and fuelvolume regulator return (FVRRTN) circuits to the PCM for high and low Causes: FVR circuit short to FVRRTN circuit FVRRTN circuit short to voltageDiagnostic Aids:ApplicationKey On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Intake A Camshaft Position Slow Response Bank 1 Description:The Powertrain control module (PCM) monitors and evaluates the response of the actualposition on a target position change. The setpoint and camshaft position are saved at thebeginning of a setpoint change. If this change over time is large enough (gradient), thecamshaft phasing change is evaluated.

3 If the change after the diagnostic time is smaller thana threshold, a slow response is detected, and if the value is greater, then there is noconcern. By detecting a concern, an antibounce counter is incremented otherwise thecounter is decremented. If the counter exceeds an adjustable limit, this DTC Causes: Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Radio frequency interference (RFI)(Continued)4-2 Powertrain DTC Charts and DescriptionsDiagnostic trouble code (DTC) Charts and DescriptionsP000A - Intake A Camshaft Position Slow Response Bank 1 Diagnostic Aids:These DTCs may be accompanied by other DTCs. Diagnose all CMP sensor DTCs first. Ifno CMP sensor related DTCs are present, continue to follow diagnosis for the DTC is a functional check of the VCT unit.

4 Diagnose any base engine concerns relatedto the engine oil pressure or engine timing. Refer to the Workshop Manual SECTION 303-00,Engine System, Oil Pressure Test, to check the engine oil pressure. Refer to the WorkshopManual SECTION 303-01, Engine, Timing Drive Components, to check the engine timing andVCT On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Exhaust B Camshaft Position Slow Response Bank 1 Description:The Powertrain control module (PCM) monitors and evaluates the response of the actualposition on a target position change. The setpoint and camshaft position are saved at thebeginning of a setpoint change. If this change over time is large enough (gradient), thecamshaft phasing change is evaluated. If the change after the diagnostic time is smaller thana threshold, a slow response is detected, and if the value is greater, then there is noconcern. By detecting a concern, an antibounce counter is incremented otherwise thecounter is decremented.

5 If the counter exceeds an adjustable limit, this DTC Causes: Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Radio frequency interference (RFI)Diagnostic Aids:These DTCs may be accompanied by other DTCs. Diagnose all CMP sensor DTCs first. Ifno CMP sensor related DTCs are present, continue to follow diagnosis for the DTC is a functional check of the VCT unit. Diagnose any base engine concerns relatedto the engine oil pressure or engine timing. Refer to the Workshop Manual SECTION 303-00,Engine System, Oil Pressure Test, to check the engine oil pressure. Refer to the WorkshopManual SECTION 303-01, Engine, Timing Drive Components, to check the engine timing andVCT On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Intake Camshaft Position Actuator Circuit/Open (Bank 1)Description:The Powertrain control module (PCM) monitors the variable camshaft timing (VCT) circuit forhigh and low voltage.

6 The test fails if the voltage exceeds a calibrated limit for a calibratedamount of Causes: Open or short in the VCT circuit Open VPWR circuit Open or short in the VCT solenoid valveDiagnostic Aids:ApplicationKey On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test DTC Charts and Descriptions4-3 Diagnostic trouble code (DTC) Charts and DescriptionsP0011 - Intake Camshaft Position Timing - Over-Advanced (Bank 1)Description:The Powertrain control module (PCM) monitors the variable camshaft timing (VCT) positionfor an over-advanced camshaft timing. The test fails when the camshaft timing exceeds amaximum calibrated value or remains in an advanced Causes: Camshaft timing incorrectly set Continuous oil flow to the VCT piston chamber Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the VCT valve body VCT solenoid valve stuck open Open or short in the VCT circuit Open VPWR circuit Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Damaged camshaft position (CMP) sensor Open or short in the CMP sensor circuits Radio frequency interference (RFI)Diagnostic Aids:These DTCs may be accompanied by other DTCs.

7 Diagnose all CMP sensor DTCs first. Ifno CMP sensor related DTCs are present, continue to follow diagnosis for the DTC is a functional check of the VCT unit. Diagnose any base engine concerns relatedto the engine oil pressure or engine timing. Refer to the Workshop Manual SECTION 303-00,Engine System, Oil Pressure Test, to check the engine oil pressure. Refer to the WorkshopManual SECTION 303-01, Engine, Timing Drive Components, to check the engine timing andVCT On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Intake Camshaft Position Timing - Over-Retarded (Bank 1)Description:The Powertrain control module (PCM) monitors the variable camshaft timing (VCT) positionfor over-retarded camshaft timing. The test fails when the camshaft timing exceeds amaximum calibrated value or remains in a retarded Causes: Camshaft timing incorrectly set Continuous oil flow to the VCT piston chamber Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the VCT valve body VCT solenoid valve stuck open Open or short in the VCT circuit Open VPWR circuit Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Damaged camshaft position (CMP) sensor Open or short in the CMP sensor circuits Radio frequency interference (RFI)Diagnostic Aids:These DTCs may be accompanied by other DTCs.

8 Diagnose all CMP sensor DTCs first. Ifno CMP sensor related DTCs are present, continue to follow diagnosis for the DTC is a functional check of the VCT unit. Diagnose any base engine concerns relatedto the engine oil pressure or engine timing. Refer to the Workshop Manual SECTION 303-00,Engine System, Oil Pressure Test, to check the engine oil pressure. Refer to the WorkshopManual SECTION 303-01, Engine, Timing Drive Components, to check the engine timing andVCT On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test DTC Charts and DescriptionsDiagnostic trouble code (DTC) Charts and DescriptionsP0013 - Exhaust Camshaft Position Actuator Circuit/Open (Bank 1)Description:The Powertrain control module (PCM) monitors the variable camshaft timing (VCT) circuit forhigh and low voltage. The test fails if the voltage exceeds a calibrated limit for a calibratedamount of Causes: Open or short in the VCT circuit Open VPWR circuit Open or short in the VCT solenoid valveDiagnostic Aids:ApplicationKey On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test - Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Description:The Powertrain control module (PCM) monitors the variable camshaft timing (VCT) positionfor an over-advanced camshaft timing.

9 The test fails when the camshaft timing exceeds amaximum calibrated value or remains in an advanced Causes: Camshaft timing incorrectly set Continuous oil flow to the VCT piston chamber Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the VCT valve body VCT solenoid valve stuck open Open or short in the VCT circuit Open VPWR circuit Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Damaged camshaft position (CMP) sensor Open or short in the CMP sensor circuits Radio frequency interference (RFI)Diagnostic Aids:These DTCs may be accompanied by other DTCs. Diagnose all CMP sensor DTCs first. Ifno CMP sensor related DTCs are present, continue to follow diagnosis for the DTC is a functional check of the VCT unit. Diagnose any base engine concerns relatedto the engine oil pressure or engine timing. Refer to the Workshop Manual SECTION 303-00,Engine System, Oil Pressure Test, to check the engine oil pressure.

10 Refer to the WorkshopManual SECTION 303-01, Engine, Timing Drive Components, to check the engine timing andVCT On Engine OffKey On Engine RunningContinuous MemoryAllGO to Pinpoint Test DTC Charts and Descriptions4-5 Diagnostic trouble code (DTC) Charts and DescriptionsP0015 - Exhaust Camshaft Position Timing - Over-Retarded (Bank 1)Description:The Powertrain control module (PCM) monitors the variable camshaft timing (VCT) positionfor over-retarded camshaft timing. The test fails when the camshaft timing exceeds amaximum calibrated value or remains in a retarded Causes: Camshaft timing incorrectly set Continuous oil flow to the VCT piston chamber Erratic camshaft position due to low oil pressure Oil flow restriction in the oil passages or the VCT valve body VCT solenoid valve stuck open Open or short in the VCT circuit Open VPWR circuit Camshaft advance mechanism binding (VCT unit) Damaged VCT phaser Damaged camshaft position (CMP) sensor Open or short in the CMP sensor circuits Radio frequency interference (RFI)Diagnostic Aids:These DTCs may be accompanied by other DTCs.