U0121 - Lost Communication With The Antilock Braking System (Abs) Control Module
U0121 - LOST COMMUNICATION WITH THE ANTILOCK BRAKING SYSTEM (ABS) CONTROL MODULE
| Description: | The powertrain control module (PCM) continuously monitors the controller area network (CAN) for messages from the ABS. This DTC sets when the PCM fails to receive the ABS message within the defined amount of time. | |||
| Possible Causes: |
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| Diagnostic Aids: | Network DTC concerns occur during module-to-module communication. Refer to the MODULE COMMUNICATIONS NETWORK -- E-SERIES , to diagnose the anti-lock brake system (ABS) module does not respond to the scan tool symptom. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | - | |||