VSA Activation Indicator Does Not Come On at Start-Up (Bulb Check)

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. Refer to intermittent failures.

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 gauge control module 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 activation indicator come on?

YES - Replace the VSA modulator-control unit.

NO - Do the troubleshooting for the gauge control module.