Buick LaCrosse II facelift (2013-2016) headlamp high beam relay Wiring diagrams

1 2 33 32 RF DRL SPLY VOLT LF DRL SPLY VOLT 2 3 2540 2140 B+ B+ 22 10 5060 278 DATA LINES LOW SPD GMLAN SER DATA SYSTEM AMBIENT LIGHT SENS SIG 22 11 16 13 306 103 HDLP SW PARK LP SIG AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BCM 4 BCM 1 FUSE FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER CRUISE CONTROL, SOUND SYSTEMS FOG LAMP FUSE FRONT FOG GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP OFF SIG CTRL HDLP SW ON SIG HDLP SW FLASH TO PASS SIG HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HEADLAMPS LEVELING CIRCUIT HIGH LOW FTP HOT AT ALL TIMES HOT AT ALL TIMES BATTERY FUSE BLOCK FUSE (TOP OF BATTERY) HVAC CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LAMP RELAY LED CONTROL MODULE LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP BALLAST LEFT HEADLAMP MULTIFUNCTION LED CONTROL MODULE LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LEFT PARK/DAYTIME RUNNING LAMP LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOW REF LT HI BEAM FUSE RT HI BEAM FUSE RT HID FUSE LT HID FUSE NCA WIRE ORG/ WIRE RED WIRE RED/BLK WIRE RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP BALLAST RIGHT HEADLAMP MULTIFUNCTION RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT LOW BEAM HEADLAMP RIGHT PARK/DAYTIME RUNNING LAMP TO WINDSHIELD WIPER MOTOR) TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO BRN/ WIRE VIO WIRE WHT WIRE YEL WIRE

1 2 312 712 RH HDLP LO BEAM SPLY V LH HDLP LO BEAM SPLY V 16 11 22 HDLP SW ON SIG 23 18 10 DRL RELAY CTRL HDLP HI BEAM RLY CTRL FOG LAMP RLY CTRL 23 24 HI SPD GMLAN SER DATA (-) HI SPD GMLAN SER DATA (+) AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BLK WIRE BLU/BRN WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE FOG LAMP FUSE FRONT FOG LAMP FTP FUSE GRN WIRE GROUND GRY WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP OFF SIG CTRL HDLP SW PARK LP SIG HDLP SW FLASH TO PASS SIG HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HI BEAM HI BEAM RT HID HVAC CONTROL MODULE LEFT DAYTIME RUNNING LAMP, LEFT HEADLAMP ASSEMBLY LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LH FUSE RH FUSE FUSE LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOW REF LT HID RED WIRE RED/BLK WIRE RELAY RIGHT HEADLAMP ASSEMBLY RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT DAYTIME RUNNING LAMP RIGHT LOW BEAM HEADLAMP TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE WHT WIRE WHT/BRN WIRE WINDSHIELD WIPER MOTOR YEL WIRE

3 OF 5) A/C CLUTCH FUSE A/C COMPRESSOR CLUTCH RELAY ACTIVE GRILLE AIR SHUTTER ACTUATOR (IF EQUIPPED) AIR QUALITY SENSOR (IF EQUIPPED) AUXILIARY BLOWER MOTOR CONTROL MODULE AUXILIARY HEATER COOLANT PUMP RELAY (2.4L) BCM 1 AIR BAG FUSE FUSE BCM 2 FUSE BDY RC IGN FUSE BLK WIRE BODY CONTROL MODULE BPIM IGN FUSE CABIN HTR COOL PMP FUSE COOL COOLING FAN HIGH SPEED RELAY DISPLAY FUSE DLIS DLC FUSE FUSE ECM FUSE ECM IGN FUSE IP RC IGN FUSE ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY ENGINE HVAC CONTROL CONTROL MODULE MODULE FROM AFL BATT FUSE (DIAGRAM 1 OF 5) FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 5) FROM BODY CONTROL MODULE (DIAGRAM 5 OF 5) FROM MGU CLT PUMP FUSE (DIAGRAM 2 OF 5) FRONT FOG LAMP RELAY FRT WIPER FUSE FUSE GRN/VIO WIRE GRY WIRE HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY REAR DEFOGGER RELAY HORN RELAY HVAC TO CONTROL ACCESSORY MODULE DC/AC POWER INVERTER MODULE (DIAGRAM 3 OF 5) HVAC/ ACDC INV FUSE CNTRL FUSE IGNITION IGNITION COIL 2 COIL 4 IGNITION COIL 6 IGNITION MAIN RELAY INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INJ EVEN FUSE INSIDE REARVIEW REARVIEW MIRROR CAMERA INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) IPC FUSE MGU CLT PUMP FUSE MIL IGN FUSE OF BATTERY) PASSENGER AIR BAG DISABLED INSTRUMENT INDICATOR CLUSTER PASSENGER PRESENCE MODULE PUMP RELAY (DIAGRAM 2 OF 5) REAR HVAC/ BLWR FUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SAIR PUMP FUSE SAIR SOL FUSE SECONDARY AIR INJECTION PUMP RELAY (2.4L CALIFORNIA) SECONDARY AIR INJECTION SOLENOID VALVE RELAY (2.4L CALIFORNIA) START/ GENERATOR COOLANT PUMP RELAY (2.4L) STARTER/ GENERATOR CONTROL MODULE HYBRID/ EV BATTERY PACK TO IGNITION DATA LINK SWITCH CONNECTOR (DIAGRAM 5 OF 5) TO LOGIS/MODE FUSE (DIAGRAM TO MIR EWL FR FUSE (DIAGRAM 5 OF 5) TO SEAT MASS FUSE (DIAGRAM 4 OF 5) TO SPLICE TO WINDSHIELD WASHER TRANS AUX PUMP FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WINDSHIELD WINDSHIELD WIPER WASHER RELAY PUMP RELAY WINDSHIELD WIPER SPEED CONTROL RELAY