Diagnostic Aids
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
- Use a scan tool in order to inspect the Passlock™ data voltage and the Passlock™ code.
- Inspect for poor connections at the Passlock™ sensor. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS in Wiring Systems.