Symptom Troubleshooting

Symptom Troubleshooting: ABS indicator does not come on

ABS indicator does not come on

1. Turn the ignition switch to ON (II), and watch the ABS indicator.

Does the ABS indicator come on?
YES - The system is OK at this time.

NO - Go to step 2.


2. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

Does the brake system indicator come on?
YES - Go to step 6.

NO - Go to step 3.


3. Turn the ignition switch to LOCK (0).

4. Disconnect gauge assembly connector A (22P).

5. Check for continuity between gauge assembly connector A (22P) terminal No. 18 and body ground.

Is there continuity?
YES - Do the self-diagnostic function troubleshooting for the gauge assembly. Initial Inspection and Diagnostic Overview

NO - Repair open in the wire between the gauge assembly and body ground (G501).






6. Turn the ignition switch to LOCK (0).

7. Disconnect the VSA modulator-control unit 47P connector. Service and Repair

8. Turn the ignition switch to ON (II).

Does the ABS indicator come on?
YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, Service and Repair and retest.

NO - Go to step 9.


9. Turn the ignition switch to LOCK (0).

10. Check the ABS indicator bulb in the gauge assembly.

Is the bulb OK?
YES - Go to step 11.

NO - Replace the ABS indicator bulb.


11. Disconnect gauge assembly connector B (30P).

12. Check for continuity between gauge assembly connector B (30P) terminal No. 20 and body ground.

Is there continuity?
YES - Repair short to body ground in the wire between the gauge assembly and the VSA modulator-control unit.

NO - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, Service and Repair and retest.