Test H: The Anti-Lock Brake System (ABS) Warning Indicator Is Never/Always On
PINPOINT TEST H: THE ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR IS NEVER/ALWAYS ONH1:
H1-H5:
H5-H8:
H9-H11:
Normal Operation
The ABS warning indicator illuminates when triggered by the ABS control module, and stays illuminated as long as the concern remains. The instrument cluster is hardwired to the ABS module through circuit 603 (DG). If a fault is detected, the ABS module grounds circuit 603 (DG) to the instrument cluster, illuminating the ABS warning indicator.
Possible Causes
- circuit 603 (DG) open or short to ground
- instrument cluster
- ABS module