U0121 (SOBDMC) - Lost Communication With Anti-Lock Brake System (Abs) Control Module
DTC DESCRIPTION U0121 (SOBDMC) - LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE
| Description: | The TCM continuously monitors the controller area network (CAN) for messages from the anti-lock brake system (ABS) module. This DTC sets when the TCM does not receive the ABS message within the defined amount of time. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check for other SOBDMC DTCs or SOBDMC related symptoms. Diagnose all other SOBDMC DTCs or SOBDMC related symptoms first. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test QD . | ||