Possible Causes
WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
| POSSIBLE CAUSES |
|---|
| INCORRECT VIN PROGRAMMED IN THE PCM |
| NO COMMUNICATION WITH SKREEM/WCM |
| NO VIN PROGRAMMED IN THE PCM |
| IGNITION KEY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .