Operation CHARM: Car repair manuals for everyone.

Troubleshooting Hints - Interior Lights

1. Check for open RH CTSY Fuse. If open, check for short in CKT 740.
2. Make sure grounds G106, G201, G202 are clean and tight.
3. Check to see if Central Control Module (CCM) Codes 24 or 25 are set. If set, refer to Body Electrical section for diagnosis.

^ Check for a broken (or partially broken) wire inside of the insulation which could cause system failure but prove "GOOD" in a continuity/voltage check.
^ Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems.