L: C1218 - Lamp Anti-Lock Brake System (ABS) Warning Output Circuit Failure

Test L: DTC C1218 - Lamp Anti-Lock Brake System (ABS) Warning Output Circuit Failure

Normal Operation
The transmission control module (TCM) monitors the controller area network (CAN) communication circuit 1814 (WH/LB) and circuit 1815 (PK/LB) for an ABS module event. If an ABS event occurs, the TCM monitors the Total Torque Desired in the TCM. If the Total Torque Desired is greater than 200 Nm (148 ft. lbs.), the TCM sets DTC C1218.

Possible Causes
^ ABS module
^ TCM
^ Powertrain control module (PCM)

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