Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- CHECK FOR AN ACTIVE DTC NOTE:
This DTC could set during towing if the Manual Park Release Cable was not fully pulled and the pawl is in an intermediate position for too long.
- Start the engine and test drive the vehicle in accordance with the monitoring conditions.
- 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
- Review the recorded DTCs.
Are there any CAN bus communication DTCs active or pending?
Yes
- Perform the applicable diagnostic procedure(s). Refer to: DTC INDEX (1 OF 3) and/or DTC INDEX (2 OF 3) and/or DTC INDEX (3 OF 3) .
No
- Go To 3
- Review the recorded DTCs.
- CHECK FOR TRANSMISSION CONTROL MODULE (TCM) DTCS
- With the scan tool, read TCM DTCs.
Does the TCM also have a DTC present for the Park/Neutral Switch or TRS Signal circuits?
Yes
- Refer to: MODULE, POWERTRAIN CONTROL (PCM), 5.7L and conduct the appropriate diagnostic procedure.
No
- Replace the Transmission Control Module in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- With the scan tool, read TCM DTCs.