Possible Causes
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| COMMUNICATIONS DTC(S) PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
| AIR SUSPENSION CONTROL MODULE (ASCM) SWAPPED FROM ANOTHER VEHICLE |
| AIR SUSPENSION CONTROL MODULE (ASCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to ASCM PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .