Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. 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 .