Diagnostic Trouble Codes (DTCs)

The BCM may set these Diagnostic Trouble Codes (DTCs) related to the interior courtesy lamps:
^ DTC B0812 Courtesy Lights Battery Feed CKT Open
^ DTC B0828 Theater Dimming Ground Circuit Open
^ DTC B1802 Courtesy Lights CKT Shorted to Ground
^ DTC B2452 Theater Dimming 1 Open or Shorted to GND
^ DTC B2453 Theater Dimming 1 Shorted to B+
^ DTC B2457 Theater Dimming 2 Open or Shorted to GND
^ DTC B2458 Theater Dimming 2 Shorted to B+

Refer to Body Control Module Diagnostic Information in Body Control System for diagnostic procedures regarding these DTCs. Testing and Inspection