Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Turn the ignition on.
- With the scan tool, read DTCs and record on the repair order.
Is the DTC active or pending?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- CHECK FOR OTHER DTCS
- Refer to the recorded DTCs.
Are there any DTCs active or pending?
Yes
- Perform the applicable diagnostic procedure(s). Refer to appropriate diagnostic information .
No
- Go To 3
- Refer to the recorded DTCs.
- CHECKING THE PCM POWER AND GROUND CIRCUITS
- Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Refer to CHECKING THE PCM POWER AND GROUND CIRCUITS
.
Were any problems found?
Yes
- Repair as necessary.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Go To 4
- Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Refer to CHECKING THE PCM POWER AND GROUND CIRCUITS
.
- CHECK THE POWERTRAIN CONTROL MODULE SOFTWARE LEVEL
- Turn the ignition on.
- Verify the PCM is at the latest calibration (flash level).
- If the PCM has later calibration available, program the PCM in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), MODULE PROGRAMMING .
- Cycle the ignition off and on.
- With a scan tool, read DTCs.
Is there an update for the PCM?
Yes
- Go To 5
No
- Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL AND INSTALLATION .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- PROGRAM THE POWERTRAIN CONTROL MODULE AND CHECK FOR DTC TO RETURN
- Update the PCM in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), MODULE PROGRAMMING .
- Cycle the ignition off and on.
- With a scan tool, read DTCs.
Does this DTC return?
Yes
- Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL AND INSTALLATION .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Test Complete.