Buick LaCrosse II (2009-2013) (forward lamp harness, 65 mm from breakout to Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SER DATA COMM 1 3 B+ INT N/W BUS 6 2 4 GND LVL HDLP ERR SIG 2501 740 COMPUTER DATA LINES SYSTEM BLK WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE FUSE GRN/PPL WIRE GROUND HEADLAMP CONTROL MODULE (LOWER LEFT SIDE OF DASH BEHIND BODY CONTROL MODULE) HI SPD GMLAN SER DATA (-) B+ HI SPD GMLAN SER DATA - HOT AT ALL TIMES INT N/W BUS 6 B+ GND LVL HDLP ERR SIG 3 1 2 4 LEFT HEADLAMP LEFT HEADLAMP BALLAST LEFT HEADLAMP HORIZONTAL MOTOR LOGIC NETWORK BUS 6 RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLAMP RIGHT HEADLAMP BALLAST RIGHT HEADLAMP HORIZONTAL MOTOR UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE YEL WIRE

1 23 24 B+ HI SPD DATA - HI SPD DATA + 10 9 16 NETWORK BUS 3 NETWORK BUS 2 NETWORK BUS 1 22 21 LO SPD DATA NETWORK BUS 4 22 23 WAKEUP SERIAL DATA HOOD AJAR SW SIG 24 25 HI SPD DATA + HI SPD DATA - BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE COMPASS MODULE DK BLU WIRE DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRIVER WINDOW SWITCH GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PPL WIRE GRN/YEL WIRE IMMOBILIZER CONTROL MODULE (CENTER CONSOLE) INT N/W BUS 6 LEFT HEADLAMP LEFT HEADLAMP HORIZONTAL MOTOR LEFT REAR WINDOW SWITCH LT BLU/VIO (GRN/PPL) WIRE NETWORK BUS 1 NETWORK BUS 11 NETWORK BUS 2 NETWORK BUS 3 NETWORK BUS 4 PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) RED/WHT WIRE RIGHT HEADLAMP RIGHT HEADLAMP HORIZONTAL MOTOR RIGHT REAR WINDOW SWITCH SUNROOF CONTROL MODULE (IF EQUIPPED) (BEHIND ROOF CONSOLE) SUNROOF SUNSHADE MOTOR MODULE (IF EQUIPPED) (REAR OF SUNROOF) TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO/YEL WIRE W/ COMPASS DISPLAY W/O ONSTAR W/ KEYLESS ENGINE START SWITCH WHT WIRE WHT/DK BLU WIRE