| 1. | Turn the ignition switch ON (II), and watch the ABS indicator. Does the ABS indicator come on? YES - The system is OK at this time.n NO - Go to 2. |
| 2. | Apply the parking brake. Dose the brake system indicator come on? YES - Go to 3. NO - Repair open in the indicator power source circuit. If necessary, substitute a known-good gauge assembly, and recheck.n |
| 3. | Turn the ignition switch OFF. |
| 4. | Disconnect the ABS control unit 25P connector. |
| 5. | Turn the ignition switch ON (II). Does 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.n NO - Go to 6. |
| 6. | Turn the ignition switch OFF. |
| 7. | Remove the gauge control module. |
| 8. | Disconnect guage control module connector B (30P). |
| 9. | Cheek for continuity between gauge control module connector B (30P) terminal No. 27 and body ground. Is there continuity? YES - Repair short to body ground in the wire between the gauge control module and the ABS conrol unit.n NO - Check for loose terminals in the gauge control module connectors. If the connectors are OK, replace the gauge control module.n |
| 1. | Disconnect the ABS control unit 25P connector. |
| 2. | Turn the ignition switch ON (II). |
| 3. | Mesure the voltage between the ABS control unit 25P connector terminal No. 16 and body ground. Is there battery voltage? YES - Go to 4. NO - Repair open in the wire between the No. 21 (7.5A) fuse and the ABS control unit.n |
| 4. | Turn the ignition switch OFF. |
| 5. | Check for continuity between the ABS control unit 25P connector terminal No. 24 and body ground. Is there continuity? YES - Go to 6. NO - Repir open in the wire between the ABS control unit and body ground (G203).n |
| 6. | Turn the ignition switch ON (II). |
| 7. | Connect the ABS control unit 25P connector terminal No. 21 and body ground with a jumper wire. Does the ABS indicator go off? YES - Check for the loose terminals in the ABS control unit 25P connector. If necessary, substitute a known-good ABS modulator-control unit, and recheck.n NO - Go to 8. |
| 8. | Remove the gauge control module, and leave the connectors connected. |
| 9. | Connect guage control module connector B (30P) terminal No. 27 and body ground with a jumper wire. Does the ABS indicator go off? YES - Repair open in the wire between the gauge control module and the ABS control unit.n |