ABS Warning Lamp Circuit Operation

CIRCUIT OPERATION
The ABS warning lamp is an output from the Controller Anti Lock Brake (CAB) and the Antilock Brake System (ABS) relay box. It is used to alert the operator of a problem in the ABS system. The G19 circuit from the CAB and the ABS system relay is used to detect a problem. If a problem is detected, the CAB grounds the G19 circuit and illuminates the lamp in the instrument cluster.

Circuit G19 is also an output of the CAB to the ABS system relay contact side.