| 1. | Turn the ignition switch OFF. |
| 2. | Remove the gauge assembly. |
| 3. | Disconnect the gauge assembly connector A (20P). |
| 4. | Turn the ignition switch ON (II). |
| 5. | Measure the voltage between body ground and gauge assembly connector A (20P) terminal No. 2.
Is there battery voltage? YES - Go to 6. NO - Repair open in the wire between gauge assembly and under-dash fuse/relay box.n |
| 6. | Turn the ignition switch OFF. |
| 7. | Check for continuity between the gauge assembly connector A (20P) terminal No. 9 and body ground.
Is there continuity? YES - Go to 8. NO - Repair open in the wire between gauge assembly and body ground (G401).n |
| 8. | Disconnect the VSA control unit 46P connector. |
| 9. | Disconnect the gauge assembly connector C (40P). |
| 10. | Check for continuity between the gauge assembly connector C (40P) terminal No. 30 and the gauge assembly connector A (20P) terminal No. 9.
Is there continuity? YES - Repair short to body ground in the wire between the VSA modulator-control unit and the gauge assembly.n NO - Check for loose or poor connections in the gauge assembly connectors. If connections are good, replace the gauge assembly.n |
| 1. | Check for loose or disconnected connection in the VSA control unit 46P connector. Is the connected properly? YES - Go to 2. NO - Connect the VSA control unit 46P connector properly, and recheck.n |
| 2. | Turn the ignition switch OFF. |
| 3. | Check the No. 25 (7.5 A) fuse in the under-dash fuse/relay box, and reinstall the fuse if it is OK. Is the fuse OK? YES - Go to 4. NO - Replace the fuse, then go to 13. |
| 4. | Disconnect the VSA control unit 46P connector. |
| 5. | Turn the ignition switch ON (II). |
| 6. | Measure the voltage between body ground and VSA control unit 46P connector terminal No. 40.
Is there battery voltage? YES - Go to 7. NO - Repair open in the wire between the VSA control unit 46P connector and under-dash fuse/relay box.n |
| 7. | Check for continuity between body ground and the VSA control unit 46P connector terminals No. 40.
Is there continuity? YES - Go to 8. NO - Repair open in the wire between the VSA control unit 46P connector and body ground (G202).n |
| 8. | Turn the ignition switch OFF. |
| 9. | Remove the gauge assembly. |
| 10. | Check for loose or disconnected connection in the gauge assembly connector C (40P). Is the connected properly? YES - Go to 11. NO - Connect the gauge assembly connector C (40P) properly, and recheck.n |
| 11. | Connect the gauge assembly connector C (40P) terminal No. 30 and body ground with a jumper wire.
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| 12. | Turn the ignition switch ON (II), and watch the VSA indicator. Does the VSA indicator does not come on? YES - Replace the VSA modulator-control unit.n |
| 13. | Turn the ignition switch ON (II), and watch the VSA indicator. Does the VSA indicator come on, then go off after several seconds? YES - The system is OK at this time.n NO - Go to 14. |
| 14. | Turn the ignition switch OFF. |
| 15. | Disconnect the VSA control unit 46P connector and remove the No. 25 (7.5 A) fuse in the under-dash fuse/relay box. |
| 16. | Check for continuity between body ground and the VSA control unit 46P connector terminals No. 9.
Is there continuity? YES - Repair short to body in the wire between the VSA control unit 46P connector and under-dash fuse/relay box.n NO - Check for loose connector terminals in the VSA control unit 46P connector and repair if necessary. If terminals are OK, replace the VSA modulator-control unit.n |