ABS Indicator Does Not Come On

ABS indicator does not come on
1. Turn the ignition switch ON (II), and watch the ABS indicator.
Does the ABS indicator come on for 2 seconds and then go off ?
YES - The system is OK at this time.
NO - Go to step 2.
2. Turn the ignition switch OFF then ON (II) again.
Does the brake system indicator come on?
YES - Go to step 3.
NO - Repair open in the indicator power source circuits.
- Blown No. 10 (7.5A) fuse.
- Open in the wire between the No. 10 (7.5A) fuse and gauge assembly.
- Open circuit inside the fuse box.
3. Turn the ignition switch OFF.
4. Disconnect the ABS control unit 25P connector.
5. Turn the ignition switch ON (II).
Does the ABS indicator come on?
YES - Check for loose terminals in the ABS control unit 25P connector. If necessary, substitute a known-good ABS modulator-control unit, and recheck.
NO - Go to step 6.
6. Check the ABS indicator bulb in the gauge assembly.
Is the bulb OK?
YES - Go to step 7.
NO - Replace the ABS indicator bulb.
7. Turn the ignition switch OFF.
8. Remove the gauge assembly.
9. Disconnect the gauge assembly connector B (22P).





10. Check for continuity between the gauge assembly connector A (22P) terminal No. 14 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the gauge assembly and the ABS control unit.
NO - Go to step 11.
11. Connect the gauge assembly connector A (22P), and disconnect the gauge assembly connector B (18P).





12. Check for continuity between the gauge assembly connector B (18P) terminal No. 18 and body ground.
Is there continuity?
YES - Check for loose terminals in the gauge assembly connectors. If the connector is OK, replace the gauge assembly.
NO - Repair open in the wire between the gauge assembly and body ground (G502).