| 1. | Turn the ignition switch OFF then ON (II) again. Does the brake system indicator come on? YES - Go to 2. NO - Repair open in the indicator power source circuit.n
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| 2. | Turn the ignition switch OFF. |
| 3. | Disconnect the ABS control unit 25P connector. |
| 4. | 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.n NO - Go to 5. |
| 5. | Turn the ignition switch OFF. |
| 6. | Remove the gauge assembly. |
| 7. | Disconnect the gauge assembly connector C (30P). |
| 8. | Check for continuity between the gauge assembly connector C (30P) terminal No. 28 and body ground.
Is there continuity? YES - Repair short to body ground in the wire between the gauge assembly and the ABS control unit.n NO - Go to 9. |
| 9. | Connect the gauge assembly connector C (30P), and disconnect the gauge assembly connector A (20P). |
| 10. | Check for continuity between the gauge assembly connector A (20P) terminal No. 19 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.n NO - Repair open in the wire between the gauge assembly and body ground (G502).n |
| 1. | Disconnect the negative cable from the battery. |
| 2. | Disconnect the ABS control unit 25P connector. |
| 3. | Reconnect the battery cable. |
| 4. | Turn the ignition switch ON (II). |
| 5. | Measure the voltage between the ABS control unit 25P connector terminal No. 4 and body ground.
Is there battery voltage? YES - Go to 6. NO - Repair open in the wire between the No. 16 (7.5A) fuse and the ABS control unit.n |
| 6. | Turn the ignition switch OFF. |
| 7. | Check for continuity between the ABS control unit 25P connector terminal No. 8 and body ground.
Is there continuity? YES - Go to 8. NO - Repair open in the wire between the ABS control unit and body ground (G202).n |
| 8. | Turn the ignition switch ON (II). |
| 9. | Connect ABS control unit 25P connector terminal No. 7 and body ground with a jumper wire.
Does the ABS indicator go off? 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 10. |
| 10. | Remove the jumper wire from the ABS control unit 25P connector. |
| 11. | Remove the gauge assembly. |
| 12. | Connect the gauge assembly connector C (30P) terminal No. 28 and body ground.
Does the ABS indicator go off? YES - Repair open in the wire between the gauge assembly and the ABS control unit.n NO - Check for loose terminals in the gauge assembly connectors. If the connectors are OK, replace the gauge assembly.n |