| 1. | Turn the ignition switch ON (II). |
| 2. | Check the VSA activation indicator for several seconds when the ignition switch is turned ON (ll). Does the indicator come on then go off? YES - Intermittent failure, the system is OK at this time. Check for loose terminals between the VSA OFF switch 5P connector, gauge control module (tach) connector (36P), and VSA modulator-control unit 37P connector. Refer to intermittent failures troubleshooting.n NO - Go to 3. |
| 3. | Check the VSA OFF SWITCH in the VSA DATA LIST with the HDS when pushing the VSA OFF switch. Does indicate change ON (OFF) to OFF (ON)? YES - Go to 4. NO - Do the gauge control module troubleshooting.n |
| 4. | Turn the ignition switch OFF. |
| 5. | Check the VSA OFF switch. Is the VSA off switch OK? YES - Go to 6. NO - Replace the VSA OFF switch.n |
| 6. | Disconnect the gauge control module (tach) connector (36P). |
| 7. | Disconnect the VSA OFF switch 5P connector. |
| 8. | Check for continuity between VSA OFF switch 5P connector terminal No. 2 and body ground.
Is there continuity? YES - Repair short in the wire between the gauge control module (tach) and the VSA OFF switch.n NO - Substitute a known-good gauge control module (tach), then go to 1 and recheck. If it is OK, replace the original gauge control module (tach).n |