Possible Causes
| Possible Causes |
|---|
| DTCS SET IN THE TRAILER TOW MODULE (TTM) |
| DTCS SET IN THE BODY CONTROL MODULE (BCM) |
| TRAILER TOW MODULE (TTM) |
| BODY CONTROL MODULE (BCM) |
| ADAPTIVE CRUISE CONTROL (ACC) MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to STANDARD PROCEDURE .