Contents Wiring diagrams Section: Exterior Lights All sections

Lighting System - Diagnostic Code Index Buick LaCrosse II

DTCDescription
DTC B096ADTC B096A 01 Hazard Lamps Switch Backlighting Circuit Short to Battery DTC B096A 02 Hazard Lamps Switch Backlighting Circuit Short to Ground DTC B096A 04 Hazard Lamps Switch Backlighting Circuit Open
DTC B1480DTC B1480 02 Battery Rundown Protection Circuit Short to Ground
DTC B2530DTC B2530 01 Front Fog Lamps Control Circuit Short to Battery DTC B2530 02 Front Fog Lamps Control Circuit Short to Ground DTC B2530 04 Front Fog Lamps Control Circuit Open
DTC B2545DTC B2545 01 Backup Lamps Circuit Short to Battery DTC B2545 02 Backup Lamps Circuit Short to Ground DTC B2545 04 Backup Lamps Circuit Open
DTC B2555DTC B2555 01 Passenger Compartment Lamp Control Circuit Short to Battery DTC B2555 02 Passenger Compartment Lamp Control Circuit Short to Ground DTC B2555 04 Passenger Compartment Lamp Control Circuit Open
DTC B2570DTC B2570 02 Cargo Lamp Control Circuit Short to Ground
DTC B2575 or B2699DTC B2575 01 Headlamps Control Circuit Short to Battery DTC B2575 02 Headlamps Control Circuit Short to Ground DTC B2575 04 Headlamps Control Circuit Open DTC B2699 01 Right Headlamp Control Circuit Short to Battery DTC B2699 02 Right Headlamp Control Circuit Short to Ground DTC B2699 04 Right Headlamp Control Circuit Open
DTC B257ADTC B257A 00 Headlamp Switch Input Signals Correlation Malfunction
DTC B257BDTC B257B 03 Lighting Control Switch Signal Low Voltage DTC B257B 07 Lighting Control Switch Signal High Voltage
DTC B257C or B257DDTC B257C 00 Left Headlamp Assembly Malfunction DTC B257D 00 Right Headlamp Assembly Malfunction
DTC B2580DTC B2580 01 Headlamp High Beam Control Circuit Short to Battery DTC B2580 02 Headlamp High Beam Control Circuit Short to Ground DTC B2580 04 Headlamp High Beam Control Circuit Open
DTC B2585 or B3867DTC B2585 01 Left Park Lamps Control Circuit Short to Battery DTC B2585 02 Left Park Lamps Control Circuit Short to Ground DTC B2585 04 Left Park Lamps Control Circuit Open DTC B3867 01 Right Park Lamps Control Circuit Short to Battery DTC B3867 02 Right Park Lamps Control Circuit Short to Ground DTC B3867 04 Right Park Lamps Control Circuit Open
DTC B258ADTC B258A 01 Low Beam Control Circuit Short to Battery DTC B258A 02 Low Beam Control Circuit Short to Ground DTC B258A 04 Low Beam Control Circuit Open
DTC B2600DTC B2600 01 Left Daytime Running Lamps Control Circuit Short to Battery DTC B2600 02 Left Daytime Running Lamps Control Circuit Short to Ground DTC B2600 04 Left Daytime Running Lamps Control Circuit Open
DTC B2605DTC B2605 01 Right Daytime Running Lamps Control Circuit Short to Battery DTC B2605 02 Right Daytime Running Lamps Control Circuit Short to Ground DTC B2605 04 Right Daytime Running Lamps Control Circuit Open
DTC B260B or B260CDTC B260B 01 Left Daytime Running Lamp Relay Control Circuit Short to Battery DTC B260B 02 Left Daytime Running Lamp Relay Control Circuit Short to Ground DTC B260B 04 Left Daytime Running Lamp Relay Control Circuit Open DTC B260C 01 Right Daytime Running Lamp Relay Control Circuit Short to Battery DTC B260C 02 Right Daytime Running Lamp Relay Control Circuit Short to Ground DTC B260C 04 Right Daytime Running Lamp Relay Control Circuit Open
DTC B2610DTC B2610 02 Passenger Compartment Dimming 1 Circuit Short to Ground DTC B2610 04 Passenger Compartment Dimming 1 Circuit Open
DTC B2615DTC B2615 02 Passenger Compartment Dimming 2 Circuit Short to Ground
DTC B2625DTC B2625 02 Display Dimming Pulse Width Modulation Output Circuit Short to Ground
DTC B263ADTC B263A 02 Exterior Illumination Lamp Circuit Short to Ground DTC B263A 04 Exterior Illumination Lamp Circuit Open
DTC B2645DTC B2645 03 Ambient Light Sensor Circuit Low Voltage DTC B2645 07 Ambient Light Sensor Circuit High Voltage
DTC B2652DTC B2652 02 Passenger Compartment Dimming 3 Circuit Short to Ground
DTC B2740DTC B2740 00 Front Fog Lamp Switch Circuit Malfunction
DTC B3445 or B3878DTC B3445 01 Brake Lamps Circuit Short to Battery DTC B3445 02 Brake Lamps Circuit Short to Ground DTC B3878 02 Right Brake Lamp Circuit Short to Ground
DTC B3596DTC B3596 00 Hazard Lamps Request Circuit Malfunction
DTC B3650DTC B3650 08 High Beam Request Signal Circuit Performance - Signal Invalid
DTC B3806DTC B3806 00 High Beam and Headlamp Flash Select Circuit Malfunction
DTC B3881 or B3882DTC B3881 01 Tail Lamp Circuit Short to Battery DTC B3881 02 Tail Lamp Circuit Short to Ground DTC B3881 04 Tail Lamp Circuit Open DTC B3882 01 Right Tail Lamp Circuit Short to Battery DTC B3882 02 Right Tail Lamp Circuit Short to Ground DTC B3882 04 Right Tail Lamp Circuit Open
DTC B3883DTC B3883 01 License Plate Lamp Circuit Short to Battery DTC B3883 02 License Plate Lamp Circuit Short to Ground DTC B3883 04 License Plate Lamp Circuit Open
DTC B3884DTC B3884 02 Center High Mounted Brake Lamp Circuit Short to Ground
DTC B3948 or B3949DTC B3948 01 Left Front Turn Signal Circuit Short to Battery DTC B3948 02 Left Front Turn Signal Circuit Short to Ground DTC B3948 04 Left Front Turn Signal Circuit Open DTC B3949 01 Right Front Turn Signal Circuit Short to Battery DTC B3949 02 Right Front Turn Signal Circuit Short to Ground DTC B3949 04 Right Front Turn Signal Circuit Open
DTC B3950 or B3951DTC B3950 01 Left Rear Turn Signal Circuit Short to Battery DTC B3950 02 Left Rear Turn Signal Circuit Short to Ground DTC B3950 04 Left Rear Turn Signal Circuit Open DTC B3951 01 Right Rear Turn Signal Circuit Short to Battery DTC B3951 02 Right Rear Turn Signal Circuit Short to Ground DTC B3951 04 Right Rear Turn Signal Circuit Open
DTC C0277 or C0890DTC C0277 06 Brake Pedal Position Sensor Circuit Low Voltage/Open DTC C0277 07 Brake Pedal Position Sensor Circuit High Voltage DTC C0277 09 Brake Pedal Position Sensor Circuit Too Fast Transitions DTC C0277 4B Brake Pedal Position Sensor Circuit Calibration Not Learned DTC C0890 03 Control Module Voltage Reference Output 3 Circuit Low Voltage DTC C0890 07 Control Module Voltage Reference Output 3 Circuit High Voltage
DTC C0297DTC C0297 02 Brake Applied Output Circuit Short to Ground

DIAGNOSTIC CODE INDEX

See also:
DTC B096A