Test D: Brake System Indicator Does Not Go Off
- Turn the ignition switch on.
- Release the parking brake. Does the brake system indicator go off after several seconds? If yes, the system is okay at this time. If no, go to next step.
- Check the brake fluid level. Is the level okay? If yes, go to next step. If no, refill the brake fluid, and recheck.
- Check the ABS indicator. Does the ABS indicator stay on? If yes, read the ABS DTC, and do the applicable troubleshooting for the DTC. If no, go to next step.
- Turn the ignition switch off.
- Disconnect the ABS control unit 31-pin connector.
- Turn the ignition switch on, and check the brake system indicator. Does the brake system indicator go off? If yes, replace the ABS modulator-control unit. If no, check the brake system indicator circuit:
- Short to body ground between the gauge assembly, the parking brake switch and the ABS control unit.
- Short to body ground between the gauge assembly and the brake fluid level switch.
- Parking brake switch stuck on.
- Brake fluid level switch stuck on.
- Faulty gauge assembly.