Buick LaCrosse II (2009-2013) grn Wiring diagrams

BATT POS VOLT BATT POS VOLT SERIAL DATA SERIAL DATA GROUND BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REARVIEW MIRROR FUSE GRN WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LED SIGNAL LEFT SIDE OBJECT SENSOR (BEHIND LEFT REAR WHEEL) PASSENGER OUTSIDE REARVIEW MIRROR RED/LT GRN WIRE RIGHT SIDE OBJECT SENSOR (BEHIND RIGHT REAR WHEEL) SERIAL DATA GROUND GROUND LED SIGNAL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY)

BLK WIRE BLU WIRE BRN WIRE DRIVER SEAT LUMBAR ADJUSTER VALVE ASSEMBLY DRIVER SEAT LUMBAR SUPPORT PUMP DRIVER SEAT LUMBAR SUPPORT SWITCH FUSE FWD DN FWD DOWN GRN WIRE GRY WIRE HOT AT ALL TIMES ORG/ WIRE RED WIRE RWD UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE

AMBIENT LIGHT SENSOR IND BLK WIRE BRN WIRE CALL DRIVER OUTSIDE REARVIEW MIRROR (IF EQUIPPED) EMERGENCY FUSE GRN LED WIRE GRN WIRE GRY WIRE HEADLIGHT SENSOR IND HOT W/ IGNITION MAIN RELAY ENERGIZED IGN VOLT TELEMATICS BUTTON ASSEMBLY INSIDE REARVIEW MIRROR KEYPAD GREEN LED KEYPAD RED LED WIRE KEYPAD SIG KEYPAD SPLY VOLT LOGIC LOW REF SIG LT GRN WIRE LT GRN/WHT WIRE MIRROR DIMMING ONSTAR PPL RED LED WIRE RED WIRE SPLY VOLT TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 DISPLAY SIG (-) DISPLAY SIG (+) DRAIN WIRE 16 1 B+ SERIAL DATA 19 20 DISPLAY TOUCH - LF SPD SENS SIG 2 1 8 LOW REF VOICE SIGNAL DRAIN WIRE 44 28 B+ SERIAL DATA 5149 5152 1792 (UYS) (UYS) (UYS) 6 12 5 VOICE SIGNAL LOW REF DRAIN WIRE 6 16 AUDIO SIGNAL LOW REF 6 20 VOICE SIGNAL LOW REF 8 9 10 14 DRAIN WIRE NAV DISPLAY + RESET DIMMING CTRL ANTI-LOCK BRAKES SYSTEM BAT POS VOLT BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BRN WIRE BRN/DK GRN WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COMPUTER DATA LINES SYSTEM DIMMING CTRL DISPLAY SIG + DK BLU WIRE DRAIN WIRE FUSE FUSE FUSE GRN WIRE GROUND GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES INFO DISPLAY MODULE (W/ NAVIGATION) INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LT GRN/YEL WIRE NAV TOUCH + NAVIGATION ANTENNA NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE RADIO RADIO ANTENNA RADIO ANTENNA MODULE (BEHIND "C" PILLAR TRIM) RED WIRE RED/BLK WIRE RED/DK BLU WIRE RED/VIO WIRE REMOTE ENABLE RESET+ SOUND SYSTEMS TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE VIO WIRE W/ DIGITAL AUDIO SYSTEM W/ UYS W/O DIGITAL AUDIO SYSTEM W/O UYS YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 B+ SUPLY VOLT 1 2 3 4 5 6 7 8 LEFT REAR CORNER OBJECT SENSOR LEFT REAR MIDDLE OBJECT SENSOR 5060 2350 2555 COMPUTER DATA LINES SYSTEM BLK WIRE BLK/GRY WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE DIM CTRL DK GRN WIRE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES I/P MULTI-FUNCTION SWITCH LEFT MIDDLE REAR OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LEFT OUTER REAR OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LOW REFERENCE LOW SPEED GMLAN SERIAL DATA GROUND REAR PARK ASSIST DISABLE SIGNAL LT GRN WIRE PARKING ASSIST CONTROL MODULE (CENTER OF REAR PACKAGE SHELF) POWER DISTRIBUTION SYSTEM RED/LT GRN WIRE RIGHT MIDDLE REAR OBJECT SENSOR (RIGHT SIDE OF REAR BUMPER) RIGHT OUTER REAR OBJECT SENSOR UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE YEL WIRE YEL/DK BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 B+ 1 2 3 4 5 6 7 8 LEFT REAR CORNER OBJECT SENSOR LEFT REAR MIDDLE OBJECT SENSOR BLK WIRE BLU WIRE GRN WIRE GROUND LEFT MIDDLE REAR OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LEFT OUTER REAR OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LOW REFERENCE MINI FUSE NCA WIRE PARKING ASSIST PARKING ASSIST CONTROL MODULE (CENTER OF REAR PACKAGE SHELF) PARKING ASSIST FUSE HOLDER PNK WIRE RED WIRE RED/YEL WIRE RIGHT MIDDLE REAR OBJECT SENSOR (RIGHT SIDE OF REAR BUMPER) RIGHT OUTER REAR OBJECT SENSOR SPEAKER YEL WIRE

18 12 RR STATUS SIG LR STATUS SIG 25 27 16 RCDLR POWER RCDLR DATA TRANSMIT RCDLR GROUND 3 4 19 15 POS VOLT POS VOLT LOCK SIG UNLOCK SIG 4 1 UNLOCK CTRL LOCK CTRL 2 4 6 NETWORK BUS 3 AJAR SW SIG AJAR SW SIG 1 AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/LT GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRIVER WINDOW SWITCH FUSE GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/LT GRN WIRE GRY/WHT WIRE HOOD AJAR SW SIG HOOD AJAR SWITCH (FRONT OF ENGINE COMPT) HOT AT ALL TIMES HVAC CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) FUSE INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 LOCK CTRL 2 LOCK RELAY CTRL NETWORK BUS 3 NETWORK BUS 4 PASSENGER DOOR LATCH ASSEMBLY PPL RCDLR DATA RECEIVE RED WIRE RED/VIO WIRE SECURITY IND CTRL STATUS CTRL UNLOCK SIG VIO/GRY WIRE VIO/YEL WIRE WHT/VIO WIRE YEL WIRE YEL/LT GRN 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

4 6 NETWORK BUS 3 AJAR SW SIG AJAR SW SIG ANT LO REF (2) ANT LO REF (5) ANT SIG (2) BLK WIRE BLK/BRN WIRE BLK/LT GRN WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM LOGIC DK BLU WIRE DK BLU/VIO WIRE DOOR HANDLE TOUCH SENSOR DR LK CTRL SW LK SIG ANT SIG (5) DRIVER DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER DOOR LATCH ASSEMBLY DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRIVER EXTERIOR DOOR HANDLE TOUCH SENSOR DRIVER INFORMATION CENTER DISPLAY SECURITY IND DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRIVER WINDOW SWITCH GMLAN SERIAL DATA GRN WIRE GRN/YEL WIRE GRY WIRE GRY/DK BLU WIRE GRY/YEL WIRE INSTRUMENT CLUSTER KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LEFT REAR EXTERIOR DOOR HANDLE SWITCH LT GRN WIRE LT GRN/WHT WIRE NETWORK BUS 3 ORG/ WIRE PACK) PASS DR SW LK CTRL ANT SIG (1) ANT LO REF (1) PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA PASSENGER EXTERIOR PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) PPL PPL PASS DR UNLATCH SW SIG DRV DR UNLATCH SW SIG REAR FASCIA KEYLESS ENTRY ANTENNA (BEHIND REAR BUMPER) RED WIRE RIGHT REAR EXTERIOR DOOR HANDLE SWITCH STATUS CTRL UNLOCK SIGNAL VIO/DK BLU WIRE VIO/GRY WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/DK BLU WIRE YEL/VIO WIRE