Buick LaCrosse II (2009-2013) gry/blk Wiring diagrams

4 2 1 3 ACTR SPLY VOLT ACTR RECEIVE SIG ACTR RTN ACTR TRANSMIT SIG AJAR SW SIG BLK WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DOOR LOCK SECURITY RELAY DRIVER INFORMATION SECURITY CENTER IND DISPLAY FLOW CONTROL MODULE CONNECTOR) GMLAN SERIAL DATA LOGIC GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/LT GRN WIRE INSTRUMENT CLUSTER KEYLESS ENTRY ANTENNA LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH NETWORK BUS 3 NETWORK BUS 4 PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) REMOTE CONTROL DOOR LOCK RECEIVER (RIGHT SIDE OF DASH) RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH VIO/GRY WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/DK BLU WIRE YEL WIRE

1 2 3 4 5 6 POS VOLT GND VOLT AJAR SW SIG BATT FUSE BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DK BLU/WHT WIRE GRN WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOW REF (7) SIG (6) LOW REF (6) SIG (8) LOW REF (8 SIG (7) LT GRN WIRE LT GRN/BLK WIRE MTR FUSE WHEELHOUSE) NETWORK BUS 4 PASSENGER DOOR LATCH ASSEMBLY POS VOLT GND PPL PPL REAR BODY FUSE BLOCK (ON LEFT REAR RED/DK BLU WIRE RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR LATCH CTRL LR LATCH CTRL PASS DR LATCH CTRL DRV DR LATCH CTRL RR UNLATCH CTRL LR UNLATCH CTRL PASS DR UNLATCH CTRL DRV DR UNLATCH CTRL SERIAL DATA SW MODE CTRL LOW REF VIO/BLK WIRE VIO/DK BLU WIRE VIO/YEL WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/BLK WIRE

10 1 DRV SEAT MTR CTRL PASS SEAT MTR CTRL BLK WIRE BLK/GRY WIRE BLK/RED WIRE BLU/BRN WIRE BRN/DK BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DRIVER BACK SEAT HEATING ELEMENT (DRIVER'S SEAT BACK) DRIVER COOLED SEAT SWITCH DRIVER CUSHION SEAT BLOWER MOTOR (UNDER CENTER OF DRIVER CUSHION) DRIVER CUSHION SEAT HEATING ELEMENT (DRIVER'S SEAT CUSHION) DRIVER HEATED SEAT SWITCH FUSE GMLAN SERIAL DATA GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/PPL WIRE GRY/BLK WIRE GRY/GRN WIRE HIGH HEAT HIGH HEAT IND HOT AT ALL TIMES HOT IN RUN OR START IGN IGNITION MAIN RELAY IND LO REF LOCAL NETWORK 10 LOGIC LOW HEAT IND MED HEAT MED HEAT IND PASS HTD SEAT ELEMENT VOLT PASS HTD SEAT NTC SIG PASSENGER BACK SEAT HEATING ELEMENT (FRONT PASSENGER'S SEAT BACK) PASSENGER COOLED SEAT SWITCH PASSENGER CUSHION SEAT BLOWER MOTOR (UNDER FRONT PASSENGER SEAT CUSHION) PASSENGER CUSHION SEAT HEATING ELEMENT (FRONT PASSENGER'S SEAT CUSHION) PASSENGER HEATED SEAT SWITCH PNK DRV HTD SEAT NTC SIG DRV HTD SEAT ELEMENT VOLT WIRE PNK WIRE RADIO/HVAC CONTROLS REAR BODY FUSE BLOCK (ON LEFT REAR WHEELHOUSE) RED/BLK WIRE RED/GRN WIRE RED/LT GRN WIRE RED/WHT WIRE SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE WHT/ORG WIRE WHT/PPL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LO REF LO REF BLK WIRE BLK/GRY WIRE BLK/RED WIRE BLU/BRN WIRE BRN/BLK WIRE BRN/DK BLU WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DRIVER BACK SEAT HEATING ELEMENT (DRIVER'S SEAT BACK) DRIVER COOLED SEAT SWITCH DRIVER CUSHION SEAT HEATING ELEMENT (DRIVER'S SEAT CUSHION) DRIVER HEATED SEAT SWITCH DRV HTD VOLT FUSE GMLAN SERIAL DATA GRN/BLK WIRE GRN/BLU WIRE GRN/PPL WIRE GRY/BLK WIRE GRY/GRN WIRE HIGH HEAT HIGH HEAT IND HOT AT ALL TIMES IND LO REF LO REF LOCAL NETWORK 10 LOGIC LOW HEAT IND MED HEAT MED HEAT IND PASS HTD VOLT PASSENGER BACK SEAT HEATING ELEMENT (FRONT PASSENGER'S SEAT BACK) PASSENGER COOLED SEAT SWITCH PASSENGER CUSHION SEAT HEATING ELEMENT (FRONT PASSENGER'S SEAT CUSHION) PASSENGER HEATED SEAT SWITCH PNK DRV NTC SIG PASS NTC SIG WIRE PNK WIRE RADIO/HVAC CONTROLS RED/GRN WIRE RED/LT GRN WIRE RED/WHT WIRE SEAT HEATING CONTROL MODULE (UNDER FRONT CENTER OF DRIVER SEAT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE WHT/GRY WIRE WHT/ORG WIRE WHT/PPL WIRE

14 18 SEAT SW SIG (1) GMLAN SERIAL DATA BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/RED WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DOWN DRIVER OUTSIDE REARVIEW MIRROR DRIVER SEAT MEMORY SWITCH FUSE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/LT GRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES LAMP SUPPLY VOLT LEFT LOGIC LOGIC PASSENGER WINDOW SWITCH LOW REF LT GRN WIRE LT GRN/BLK WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE MEM MOTOR COMM NAVIGATION SYSTEM NETWORK BUS 8 OUTSIDE REARVIEW MIRROR SWITCH PASSENGER PASSENGER OUTSIDE REARVIEW MIRROR POSITION CTRL POSITIVE VOLT PPL PPL SENS SIG RED/VIO WIRE RIGHT SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) SENS SIG SET SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/GRY WIRE VIO/WHT WIRE YEL/BRN WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 FORWARD SW SIG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NTC LOW REF 1 2 3 4 5 6 7 8 POSITIVE VOLT 2424 5978 SEATS SYSTEM BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT FRONT VERTICAL MOTOR (UNDER RIGHT FRONT CORNER OF DRIVER SEAT) DRIVER SEAT HORIZONTAL MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT MEMORY SWITCH DRIVER SEAT REAR VERTICAL MOTOR (UNDER RIGHT REAR CORNER OF DRIVER SEAT) DRIVER SEAT RECLINE MOTOR (LOWER RIGHT SIDE OF DRIVER SEAT BACK) ELEMENT SPLY VOLT ELEMENT SPLY VOLT NTC LOW REF FORWARD SW SIG REARWARD SW SIG FRONT VERTICAL DOWN REAR VERTICAL UP FRONT VERTICAL UP GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PPL WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HORIZONTAL FORWARD HORIZONTAL REARWARD HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE FUSE OF BATTERY) LO GMLAN SER DATA LOW REF LOW REF LOW REF LT GRN WIRE MEM MOTOR CTRL NETWORK BUS 8 DOWN SW SIG HIGH REF (2) NTC SIG ORG/ WIRE ORG/GRY WIRE PNK NTC SIG WIRE POSITION SENS SIG POSITION SENS SIG POSITION SENS SIG POSITION SENS SIG POSITIVE VOLT GROUND UP CTRL DOWN CTRL REAR VERTICAL DOWN RECLINE FORWARD REARWARD SW SIG RECLINE REARWARD RED WIRE RED/GRN WIRE RED/LT GRN WIRE RED/WHT WIRE RED/YEL WIRE SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) SEATS SYSTEM SEATS SYSTEM COMPUTER DATA LINES SYSTEM SW SET SIG SW SIG 1 WHT/ORG WIRE WHT/PPL WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE YEL/WHT WIRE

4 2 1 3 ACTR SPLY VOLT ACTR RECEIVE SIG ACTR RTN ACTR TRANSMIT SIG AJAR SW SIG BLK WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DOOR LOCK SECURITY RELAY DRIVER INFORMATION SECURITY CENTER IND DISPLAY FLOW CONTROL MODULE CONNECTOR) GMLAN SERIAL DATA LOGIC GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/LT GRN WIRE INSTRUMENT CLUSTER KEYLESS ENTRY ANTENNA LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH NETWORK BUS 3 NETWORK BUS 4 PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) REMOTE CONTROL DOOR LOCK RECEIVER (RIGHT SIDE OF DASH) RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH VIO/GRY WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/DK BLU WIRE YEL WIRE

1 2 3 4 5 6 POS VOLT GND VOLT AJAR SW SIG BATT FUSE BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU/BLK WIRE DK BLU/WHT WIRE GRN WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOW REF (7) SIG (6) LOW REF (6) SIG (8) LOW REF (8 SIG (7) LT GRN WIRE LT GRN/BLK WIRE MTR FUSE WHEELHOUSE) NETWORK BUS 4 PASSENGER DOOR LATCH ASSEMBLY POS VOLT GND PPL PPL REAR BODY FUSE BLOCK (ON LEFT REAR RED/DK BLU WIRE RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RR LATCH CTRL LR LATCH CTRL PASS DR LATCH CTRL DRV DR LATCH CTRL RR UNLATCH CTRL LR UNLATCH CTRL PASS DR UNLATCH CTRL DRV DR UNLATCH CTRL SERIAL DATA SW MODE CTRL LOW REF VIO/BLK WIRE VIO/DK BLU WIRE VIO/YEL WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL/BLK WIRE

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 LOW LVL AUDIO (-) CENTER AUDIO SIG (-) 8 7 6 5 4 3 2 1 GROUND RIGHT SPEAKER - LEFT REAR SPEAKER - AUDIO AMPLIFIER (RIGHT SIDE OF TRUNK) BATT POS VOLT RIGHT SPEAKER + LEFT REAR SPEAKER + BLK WIRE BRN/DK BLU WIRE BRN/VIO WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/BLK WIRE DK BLU/BRN WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/YEL WIRE FUSE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) INSTRUMENT PANEL CENTER SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR LEFT FRONT DOOR TWEETER SPEAKER SPEAKER LEFT SUBWOOFER SPEAKER LT GRN WIRE LT GRN/BLK WIRE LT GRN/DK BLU WIRE LT GRN/VIO WIRE LT GRN/YEL WIRE NCA WIRE RED WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR LEFT REAR DOOR WINDOW SHELF SPEAKER SPEAKER RIGHT REAR WINDOW SHELF SPEAKER RIGHT SUBWOOFER SPEAKER RR LO LVL SIG (-) LR LO LVL SIG (-) FRT LO LVL SIG (-) LF LO LVL SIG (-) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE VIO/DK BLU WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE