VSA Indicator Does Not Come on

VSA indicator does not come on
1. Turn the ignition switch ON (II), and watch the VSA indicator.
Does the VSA indicator come on for several seconds?
YES - The system is OK at this time.
NO - Go to step 2.
2. Apply the parking brake.
Does the brake system indicator come on?
YES - Go to step 3.
NO - Repair open in the indicator power source circuit.
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 indicator come on?
YES - Replace the VSA modulator-control unit.
NO - Go to step 6.
6. Turn the ignition switch OFF.
7. Remove the gauge assembly.
8. Disconnect the gauge assembly connector B (22P).





9. Check for continuity between the gauge assembly connector B (22P) terminal No. 8 and body ground.
Is there continuity?
YES - Repair short to body ground in the wire between the gauge assembly and the VSA modulator-control unit.
NO - Go to step 10.
10. Reconnect the gauge assembly connector B (22P).
11. Turn the ignition switch ON (II).





12. Measure the voltage between the gauge assembly connector B (22P) terminal No. 15 and body ground.
Is there 0.1 V or less?
YES - Check for loose terminals in the gauge assembly connectors. If the connectors are OK, replace the printed circuit board in the gauge assembly.
NO - Repair open in the wire between the gauge assembly and body ground (G502).