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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1087 (Lighting Systems) >> Diagnostic Information and Procedures >> Courtesy Lamps Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Body Control Module (BCM) 2 Fuse B+ Supply 5 5 - -
Body Control Module (BCM) 3 Fuse B+ Supply 1 1 - -
Courtesy Lamp High Control - Driver Door B2555 00 1 B2555 00 -
Courtesy Lamp High Control - Passenger Door B2555 00 1 B2555 00 -
Courtesy Lamp Supply Voltage 1 1 - -
Dome Lamp Switch Signal 2 2 2 -
Inadvertent Power Supply Voltage 5 5 5 -
Left Front Door Open Switch Signal 3 3 3 -
Left Rear Door Open Switch Signal 4 4 4 -
Right Front Door Open Switch Signal 3 3 3 -
Right Rear Door Open Switch Signal 4 4 4 -
Courtesy Lamp Low Control - Driver Door - 1 - -
Courtesy Lamp Low Control - Passenger Door - 1 - -
I/P Dimmer Switch Ground - 2 - -
LH Vanity Mirror Courtesy Lamp Ground - 1 - -
Trunk Courtesy Lamp Ground - 1 - -
Overhead Console Courtesy Lamp Ground - 1 - -
Rear Dome Lamp Ground - 1 - -
RH Vanity Mirror Courtesy Lamp Ground - 1 - -
  1. Courtesy Lamps Malfunction
  2. Dome Lamp Switch Malfunction
  3. Door Open Switch Malfunction - Front
  4. Door Open Switch Malfunction - Rear
  5. Reading/Vanity Mirror Lamps Malfunction