U0121 2010 FORD FUSION - Lost Communication With The Anti-lock Brake System Control Module
U0121 2010 Ford Fusion DescriptionThe Powertrain Control Module (PCM) continuously monitors the Controller Area Network (CAN) for messages from the ABS. The U0121 code sets when the PCM fails to receive the Anti-lock Brake System (ABS) message within the defined amount of time.
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