Diagnostic Test
- READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN
- With the scan tool, read DTCs in all Electronic Control Units (ECU's) and record on the repair order.
- For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
- With the scan tool, erase all DTCs.
- Turn the ignition off for a minimum of 10.0 seconds.
- Turn the ignition on.
- Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read DTCs.
Did the DTC return?
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 Communication DTCs active or pending?
Yes
- Perform the applicable diagnostic procedure(s). Refer to: 3.6L (GPEC 5) - DIAGNOSTIC CODE INDEX .
No
- Go To 3
- Refer to the recorded DTCs.
- CHECK FOR LIN BUS OR CAN BUS DTCS SET IN THE BODY CONTROL MODULE
Are there any LIN Bus or CAN Bus DTCs set in the Body Control Module?
Yes
- Diagnose the appropriate DTC in the Body Control Module before continuing. Refer to: BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX .
No
- Replace the Stop/Start Switch Bank in accordance with the Service Information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to: POWERTRAIN VERIFICATION TEST .