VSA Activation Indicator Circuit Troubleshooting

VSA Activation Indicator Circuit Troubleshooting

VSA activation indicator does not come on at start-up (bulb check)
1. Turn the ignition switch ON (II), and watch the VSA activation indicator.
Does the VSA activation indicator come on for several seconds?
YES-The system is OK at this time.
NO-Go to step 2.
2. Do the gauge control module self-diagnosis function procedure.
Is the gauge control module OK?
YES-Go to step 3.
NO-Replace the gauge control module.
3. Turn the ignition switch OFF.
4. Substitute a known-good VSA modulator-control unit.
5. Turn the ignition switch ON (II).
Does the VSA activation indicator come on?
YES-Replace the VSA modulator-control unit.
NO-Check for loose terminals in the gauge control module connectors. If connections are good, replace the gauge control module.

VSA activation indicator does not go off, and no DTCs are stored
1. Turn the ignition switch ON (II), and watch the VSA indicator.
Does the VSA indicator go off?
YES-Go to step 2.
NO-Do the appropriate troubleshooting for the VSA indicator.
2. Turn the ignition switch OFF.
3. Check the VSA OFF switch.
Is the switch OK?
YES-Go to step 4.
NO- Replace the VSA OFF switch.
4. Clear the DTC using the HDS.
Does the VSA activation indicator go off?
YES-The system is OK at this time.
NO-Go to step 5.
5. Do the VSA sensor neutral memorization.
6. Clear the DTC using the HDS.
Does the VSA activation indicator go off?
YES-The system is OK at this time.
NO- Go to step 7.
7. Remove the gauge control module.





8. Check for continuity between the VSA OFF switch 5P connector terminal No. 2 and body ground.
Is there continuity?
YES- Repair short to body ground in the wire between the gauge control module and the VSA OFF switch.
NO-Go to step 9.
9. Turn the ignition switch ON (II).





10. Measure the voltage between the VSA OFF switch 5P connector terminal No. 1 and body ground.
Is there less than 0.1 V?
YES-Go to step 11.
NO-Repair open in the wire between the VSA OFF switch and body ground (G501).
11. Substitute a known-good VSA modulator-control unit.
12. Reconnect all of the disconnected connectors.
13. Clear the DTC using the HDS.
14. Disconnect the HDS from the 16P DLC.
15. Turn the ignition switch OFF, then turn it ON (II) again.
16. Test-drive the vehicle.
Does the VSA activation indicator go off?
YES-Replace the VSA modulator-control unit.
NO-Check for loose terminals in the gauge control module connectors, If necessary, substitute a known-good gauge control module, and recheck.