Troubleshooting Hints

1. Check RH Rear Junction Block IGN 1 Fuse and I/P 1 Fuse by visual inspection.
2. Check IP Fuse Block WSW Fuse, CHIME Fuse (Oldsmobile) and IGN 1 Fuse (Buick) by visual inspection.
3. Check that the radio, power windows and sunroof operate with the ignition in RUN, if they do not refer to the appropriate section for diagnosis.
^ Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove GOOD in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.
^ Refer to System Diagnosis.