Buick LaCrosse III (2016-2019) Exterior lamps circuit

AUTO OFF BATT POS VOLT BLK WIRE BLK/BRN WIRE BLU/BRN WIRE BLU/WHT WIRE BODY CONTROL MODULE BRK APPLY SENS CTRL BRK APPLY SENS SIG BRL APPLY SENS LO REF BRN/DK GRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DRV OUTSIDE REAR VIEW MIRROR PUDDLE LP CTRL FUSE 18 FUSE 21 FUSE 22 FUSE 8 GRN/VIO WIRE GRN/YEL WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HAZ LED DIMMING SIG HI SPD GMLAN SER DATA (-) 1 HAZ SW LEFT TURN SIG HAZ SW RIGHT TURN SIG HAZ SW SIG HEAD PARK HEADLAMP SW PARK LP SIG HEADLAMP SWITCH HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT CORNERING LAMP LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT PARK DAYTIME RUNNING LAMP LF TURN SIG LP CTRL LH CORNERING LP RLY CTRL LH PARK LP CTRL LR STOP LP CTRL LR STOP/TURN LP CTRL LT GRN WIRE NCA WIRE REAR LICENSE LP CTRL RED/BRN WIRE RED/DK BLU WIRE RED/DK GRN WIRE RED/GRY WIRE RED/WHT WIRE RF TURN SIG LP CTRL RH CORNERING LP RLY CTRL RH PARK LP CTRL RR STOP LP CTRL RR STOP/TURN LP CTRL STOP LP RLY COIL CTRL TURN SIGNAL/ MULTI-FUNCTION SWITCH VIO WIRE VIO/GRY WIRE VIO/WHT WIRE W/ HID W/O HID WHT WIRE WHT/YEL WIRE YEL/DK BLU WIRE YEL/GRY WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLK/BRN WIRE BLU/BRN WIRE BLU/GRN WIRE BRN/DK GRN WIRE COMPUTER DATA LINES SYSTEM CRN LT FUSE CRN RT FUSE DK BLU/WHT WIRE DK BLU/YEL WIRE DRIVER OUTSIDE REAR VIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REAR- VIEW MIRROR GMLAN GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/LT GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD SWITCH HAZARD WARNING SWITCH HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED INSTRUMENT CLUSTER LEFT AUXILIARY TAIL LAMP LEFT BACKUP LAMP LEFT CORNERING LAMP RELAY LEFT REAR COMPARTMENT LID TAIL LAMP ASSEMBLY LEFT REAR SIDE MARKER LAMP LEFT REAR TURN SIGNAL LAMP LEFT TAIL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/STOP LAMP LEFT TURN IND LEFT TURN SIGNAL REPEATER LAMP LO SPD LOGIC LT GRN WIRE PARK LAMPS IND RED WIRE RED/BRN WIRE RIGHT CORNERING LAMP RELAY RIGHT TURN IND SER DATA (+) 2 UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/GRY WIRE YEL/WHT WIRE

5 VOLT REF BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU/WHT WIRE BRAKE PEDAL POSITION SENSOR BRK POS SENS BRK POS SENS SIG BRN/DK GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE ENGINE CONTROL MODULE FUSE 20 GRN/VIO WIRE GRN/YEL WIRE GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE GRY/GRN WIRE HI SPEED GMLAN HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LO REF NCA WIRE RED/BRN WIRE RIGHT AUXILIARY TAIL LAMP RIGHT CORNERING LAMP RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP ASSEMBLY RIGHT PARK DAYTIME RUNNING LAMP RIGHT REAR COMPARTMENT LID TAIL LAMP ASSEMBLY SERIAL DATA (-) (1) VIO/GRN WIRE VIO/WHT WIRE W/ HID W/O HID WHT WIRE WHT/GRN WIRE WHT/LT GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

APPLY SW SIG APPLY SW VOLT REF BACKUP LAMPS CIRCUIT BLK WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE BRN/DK GRN WIRE BRN/YEL WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM DK BLU WIRE ELECTRONIC BRAKE CONTROL MODULE GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE HI SPD GMLAN SERIAL DATA (-) (1) LEFT LICENSE PLATE LAMP NCA WIRE PARK BRAKE CONTROL SWITCH PARK BRK SW SIG PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR COURTESY LAMP RED WIRE RELEASE SW SIG RELEASE SW VOLT REF RIGHT BACKUP LAMP RIGHT LICENSE PLATE LAMP RIGHT REAR SIDE MARKER LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/STOP LAMP RIGHT TURN SIGNAL REPEATER LAMP SUPPLY VOLT VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE