Diagnostic Test
- DTC IS ACTIVE NOTE: Diagnose and repair any other DTCs set in the PCM before proceeding with this test.
- Turn the ignition on.
- With the scan tool, Clear DTCs in the Powertrain Control Module (PCM).
- Start the engine and allow it to reach operating temperature.WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.
- With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go to step 2
No
- Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- CHECKING THE PCM POWER AND GROUND CIRCUITS
- Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Refer to Non-DTC Diagnostics/Driveability - Gas - Diagnosis and Testing
.
Were any problems found?
Yes
- Repair the PCM power and ground circuit(s) as necessary.
- Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
No
- Go to step 3
- Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Refer to Non-DTC Diagnostics/Driveability - Gas - Diagnosis and Testing
.
- POWERTRAIN CONTROL MODULE (PCM)
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the applicable component and the Powertrain Control Module (PCM).
- Look for any chafed, pierced, pinched, or partially broken wires.
- Look for broken, bent, pushed out or corroded terminals.
- Perform any Technical Service Bulletins that may apply.
Were any problems found?
Yes
- Repair as necessary.
- Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
No
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
- Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .