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

VSA activation indicator does not come on at start-up (bulb check)

Diagnostic Procedure:

1. Do the gauge control module troubleshooting. Reading and Clearing Diagnostic Trouble Codes

2. Substitute a known-good VSA modulator-control unit, then retest. If it is OK, replace the original VSA modulator-control unit. Service and Repair