VSA System Symptom Troubleshooting - VSA activation indicator does not go off and no DTCs are stored

VSA activation indicator does not go off, and no DTCs are stored

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