Diagnostic Test

WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR POWERTRAIN CONTROL MODULE (PCM) DTCS
1. With the scan tool, read PCM DTCs.
  Are there any other PCM DTCs present?
  
  Yes
  - Repair PCM DTC(s). Perform the applicable diagnostic procedure(s). Refer to DIAGNOSTIC CODE INDEX .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 2
CHECK FOR ANY SERVICE BULLETINS OR PCM SOFTWARE UPDATES
1. Check for any applicable Service Bulletins or Flash updates related to the DTC or stall condition.
  Are there any applicable Service Bulletins or Flash updates?
  
  Yes
  - Perform the applicable repair.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Perform the START AND STALL CONDITION test procedure. Refer to the appropriate Service Information .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .