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

Symptom Troubleshooting: 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 to 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. Reading and Clearing Diagnostic Trouble Codes

NO - Go to step 2.


2. Apply the parking brake.

Does the brake system indicator come on?
YES - Go to step 3.

NO - Repair an open in the gauge control module indicator power source circuit.


3. Turn the ignition switch to LOCK (0).

4. Substitute a known-good VSA modulator-control unit. Service and Repair

5. Turn the ignition switch to ON (II).

Does the VSA activation indicator come on?
YES - Replace the VSA modulator-control unit. Service and Repair

NO - Do the troubleshooting for the gauge control module. Reading and Clearing Diagnostic Trouble Codes