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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 >> DTC B1480 >> 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
Courtesy Lamp Control-Driver Door B2555 02 1 B2555 01 -
Courtesy Lamp Control-Passenger Door B2555 02 1 B2555 01 -
Courtesy Lamp Supply Voltage 1 1 - -
Dome Lamp Switch Signal 2 2 2 -
Inadvertent Power Courtesy Lamp Control 1 1 1 -
Left Front Door Open Switch Signal 3 3 3 -
Left Rear Door Open Switch Signal 3 3 3 -
Right Front Door Open Switch Signal 3 3 3 -
Right Rear Door Open Switch Signal 3 3 3 -
Courtesy Lamp Ground-Driver Door - 1 - -
Courtesy Lamp Ground-Passenger Door - 1 - -
Courtesy Lamp Left Footwell-Ground - 1 - -
Courtesy Lamp Right Footwell-Ground - 1 - -
Courtesy Lamp Left Rear Door-Ground - 1 - -
Courtesy Lamp Right Rear Door-Ground - 1 - -
Courtesy/Reading Lamp Left Front-Ground - 1 - -
Courtesy/Reading Lamp Left Rear-Ground - 1 - -
Courtesy/Reading Lamp Right Front-Ground - 1 - -
Courtesy/Reading Lamp Right Rear-Ground - 1 - -
I/P Compartment Lamp Switch-Ground - 1 - -
I/P Dimmer Switch Ground - 2 - -
LH Vanity Mirror Courtesy Lamp Ground - 1 - -
Rear Compartment Release Latch Ground - 1 - -
RH Vanity Mirror Courtesy Lamp Ground - 1 - -
  1. Courtesy Lamps Malfunction
  2. Dome Lamp Switch Malfunction
  3. Door Open Switch Malfunction