DTC U0121: - Lost Communication With Anti-Lock Brake System (Abs) Control Module
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0121: - LOST COMMUNICATION WITH ANTI-LOCK BRAKE 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 service information , to diagnose the antilock brake system (ABS) module does not respond to the scan tool symptom. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | ||