Buick Regal V (2009-2013) left low beam headlamp Wiring diagrams

1 2 RH HDLP LOW BEAM SPY V LH HDLP LOW BEAM SPY V 13 18 10 HDLP LW BEAM RLY CTRL HDLP HI BEAM RLY CTRL FOG LAMP RLY CTRL 2 3 B+ B+ 22 11 16 HDLP SW PARK LP SIG 23 24 HS SPD GMLAN SER DATA- HS SPD GMLAN SER DATA+ 2501 2500 COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BLK WIRE BLU WIRE BLU/BRN WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE DIM SW LOW ENGINE COMPT) FRONT FOG LAMP FTP FUSE FUSE 37 FUSE 38 FUSE FUSE 48 FUSE FUSE GRN/BRN WIRE GRN/GRY WIRE GROUND 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 HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT FRONT PARK LAMP LEFT HEADLAMP LEFT HEADLAMP BALLAST LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOW REF NCA WIRE ORG/BLK WIRE RED WIRE RED/BRN WIRE RELAY RIGHT FRONT PARK LAMP RIGHT HEADLAMP RIGHT HEADLAMP BALLAST RIGHT HIGH BEAM SOLENOID ACTUATOR RIGHT LOW BEAM HEADLAMP TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE WHT/BRN WIRE YEL WIRE

1 2 RT HDLP LW BEAM SPLY VOLT LT HDLP LW BEAM SPLY VOLT 17 11 HDLP SW FLASH TO PASS SIG HDLP DIMMER SW HI BEAM SIG 18 10 HDLP HI BEAM RLY CTRL 2 3 B+ B+ 22 11 16 HDLP SW PARK LP SIG AIR CONDITIONING SYSTEM AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) AUTO OFF BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL, SOUND SYSTEMS DIMMER SWITCH DRIVER INFOR- MATION CENTER DISPLAY LOGIC INSTRUMENT CLUSTER ENGINE COMPT) FOG LAMP RLY CTRL FOG LAMP SWITCH FRONT FOG LAMP IND FRONT FOG LAMP RELAY FTP FUSE FUSE 48 FUSE FUSE GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GROUND GRY WIRE HDLP OFF SIG CTRL HDLP SW ON SIG HEAD HEADLAMP HIGH BEAM RELAY HEADLAMP SWITCH HIGH BEAM LAMP IND HIGH LOW HOT AT ALL TIMES HOT AT ALL TIMES BATTERY FUSE BLOCK (TOP OF BATTERY) HOT W/ IGNITION RUN RELAY ENERGIZED HS SPD GMLAN SER DATA- HS SPD GMLAN SER DATA+ HVAC CONTROL MODULE (BEHIND CENTER OF DASH, ON HVAC ASSEMBLY) IGN INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT FRONT FOG LAMP LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOW REF LOW SPD GMLAN SER DATA ORG/BLK WIRE PARK AUTO OFF HEAD PARK RED WIRE RED/BLK WIRE RIGHT FRONT FOG LAMP RIGHT HEADLAMP LEFT HEADLAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE