Buick LaCrosse II facelift (2013-2016) lt grn Wiring diagrams

1 2 SERIAL DATA (-) SERIAL DATA (+) AM/FM AUX AUDIO COM SIG AUX DET SIG BATT + BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/DK BLU WIRE BRN/WHT WIRE BUS 12 COAX COAX 1 2 3 4 5 6 7 8 9 COMPUTER DATA LINES SYSTEM CTRL DK BLU WIRE DK BLU/BLK WIRE GMLAN SERIAL DATA GRN WIRE GRN/BLU WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/VIO WIRE HANG UP IND DIMMIMG INSTRUMENT CLUSTER LED CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOW REF LT FT SPKR 1+ LT FT SPKR SIG 1- LT GRN WIRE LT GRN/BLK WIRE LT RR SPKR LT RR SPKR SIG - MOST CTRL NCA WIRE NETWORK NETWORK BUS 10 ORG/ WIRE ORG/VIO WIRE PNK 10 4 5 6 WIRE PNK WIRE RADIO RED/BLU WIRE RED/VIO WIRE RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH RT FT SPKR 1+ RT FT SPKR SIG 1- RT RR SPKR RT RR SPKR SIG - SEEK SEEK+ VOL+ SERIAL DATA SIG SOURCE MUTE SPEAK SIG STEERING STEERING WHEEL AIR BAG COIL VIO WIRE VOICE LEFT VOICE SIG VOL (-) WHEEL SW WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

AM/FM BRN/DK BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COAX COAX 1 2 3 4 5 6 7 8 9 DK BLU WIRE DK BLU/BLK WIRE FM/RFR LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LT GRN WIRE LT GRN/BLK WIRE RADIO ANTENNA RADIO ANTENNA AMPLIFIER (BEHIND PASSENGER C-PILLAR TRIM) RFR RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER WHT WIRE YEL WIRE YEL/BLK WIRE

4 6 NETWORK BUS 3 AJAR SW SIG ACTR RECEIVE SIG ACTR RTN ACTR SPLY VOLT ACTR TRANSMIT SIG AJAR SW SIG ANT LO REF (2) ANT LO REF (5) ANT SIG (1) ANT LO REF (1) ANT SIG (2) ANT SIG (5) BLK WIRE BLK/BRN WIRE BLK/LT GRN WIRE BLK/YEL WIRE BLU WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM LOGIC DK BLU WIRE DK BLU/VIO WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH 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/BLU WIRE GRY/DK BLU WIRE GRY/YEL WIRE INSTRUMENT CLUSTER KEYLESS ENTRY ANTENNA KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE SWITCH LT GRN WIRE LT GRN/WHT WIRE LT GRN/YEL WIRE NETWORK BUS 3 ORG/ WIRE PACK) PASS DR UNLATCH SW SIG DRV DR UNLATCH SW SIG PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA PASSENGER EXTERIOR DOOR HANDLE SWITCH PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) REAR FASCIA KEYLESS ENTRY ANTENNA (IF EQUIPPED) (BEHIND REAR BUMPER) RED WIRE REMOTE CONTROL DOOR LOCK RECEIVER (ON PASSENGER SIDE C-PILLAR) RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH STATUS CTRL UNLOCK SIGNAL VIO WIRE VIO/GRY WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE

BLK WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/VIO WIRE DRIVER PASSENGER FOLDING SWITCH GRY WIRE GRY/VIO WIRE HOT AT ALL TIMES LOGIC LT GRN WIRE MIR EWL FR FUSE OUTSIDE REARVIEW MIRROR SWITCH PASSENGER DRIVER RED WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE WHT WIRE YEL WIRE YEL/GRY WIRE YEL/LT GRN WIRE YEL/WHT WIRE

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/WHT WIRE BRN/YEL WIRE DEFOGGER SYSTEM DK BLU WIRE DK BLU/VIO WIRE DRIVER OUTSIDE REARVIEW MIRROR DRIVER OUTSIDE REARVIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REARVIEW MIRROR GLASS DRIVER OUTSIDE REARVIEW MIRROR LAMP ASSEMBLY DRIVER OUTSIDE REARVIEW MIRROR MOTOR DRIVER SIDE OBJECT DETECTION INDICATOR ELECTROCHROMIC MIRROR CIRCUIT FOLDING MOTOR GRN WIRE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE LEFT TURN SIGNAL REPEATER LAMP LT BLU/WHT WIRE LT GRN WIRE MIRROR DIMMING NAVIGATION SYSTEM ORG/BLK WIRE PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER OUTSIDE REARVIEW MIRROR COURTESY LAMP PASSENGER OUTSIDE REARVIEW MIRROR GLASS PASSENGER OUTSIDE REARVIEW MIRROR LAMP ASSEMBLY PASSENGER OUTSIDE REARVIEW MIRROR MOTOR PASSENGER SIDE OBJECT DETECTION INDICATOR RIGHT TURN SIGNAL REPEATER LAMP SPLICE PACK VIO WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/LT GRN WIRE YEL/WHT WIRE

8 7 6 5 4 3 2 1 GROUND AM/FM AMPLIFIER FUSE AUDIO AMPLIFIER (RIGHT SIDE OF TRUNK) BLK WIRE BRN/DK BLU WIRE CENTER RIGHT REAR INSTRUMENT DOOR PANEL SPEAKER SPEAKER COAX COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/BLK WIRE DK BLU/GRY WIRE DK BLU/YEL WIRE FM/RFR GRN WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR RIGHT FRONT DOOR DOOR SPEAKER SPEAKER LEFT REAR WINDOW SHELF SPEAKER LEFT SPEAKER - BATT POS VOLT LT FT SPKR 1 (+) RT FT SPKR 1 (+) LEFT SPEAKER + LEFT SUBWOOFER SPEAKER LT GRN WIRE LT GRN/BLK WIRE LT GRN/VIO WIRE MOST CTRL RADIO ANTENNA RADIO ANTENNA AMPLIFIER (BEHIND PASSENGER C-PILLAR TRIM) RED/YEL WIRE RFR RIGHT FRONT TWEETER SPEAKER RIGHT REAR WINDOW SHELF SPEAKER RIGHT SUBWOOFER SPEAKER SERIAL DATA - SERIAL DATA + SERIAL DATA + SERIAL DATA - UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1 2 SERIAL DATA (-) SERIAL DATA (+) AM/FM AUX AUDIO COM SIG AUX DET SIG BATT + BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/DK BLU WIRE BRN/WHT WIRE BUS 12 COAX COAX 1 2 3 4 5 6 7 8 9 COMPUTER DATA LINES SYSTEM CTRL DK BLU WIRE DK BLU/BLK WIRE GMLAN SERIAL DATA GRN WIRE GRN/BLU WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/VIO WIRE HANG UP IND DIMMING INSTRUMENT CLUSTER LED CTRL LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOW REF LT FT SPKR 1+ LT FT SPKR SIG 1- LT GRN WIRE LT GRN/BLK WIRE LT RR SPKR LT RR SPKR SIG - MOST CTRL NCA WIRE NETWORK NETWORK BUS 10 ORG/ WIRE ORG/VIO WIRE PNK 10 4 5 6 WIRE PNK WIRE RADIO RED/BLU WIRE RED/VIO WIRE RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH RT FT SPKR 1+ RT FT SPKR SIG 1- RT RR SPKR RT RR SPKR SIG - SEEK SEEK+ VOL+ SERIAL DATA SIG SOURCE MUTE SPEAK SIG STEERING STEERING WHEEL AIR BAG COIL VIO WIRE VOICE LEFT VOICE SIG VOL (-) WHEEL SW WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

AM/FM BRN/DK BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COAX COAX 1 2 3 4 5 6 7 8 9 DK BLU WIRE DK BLU/BLK WIRE FM/RFR LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LT GRN WIRE LT GRN/BLK WIRE RADIO ANTENNA RADIO ANTENNA AMPLIFIER (BEHIND PASSENGER C-PILLAR TRIM) RFR RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE EXPRESS SIG GND IGN 1 VOLT SPLY VOLT HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT TAILLAMP ASSEMBLY LT GRN WIRE REAR WINDOW SUNSHADE MODULE (LEFT SIDE OF REAR WINDOW SHELF) REAR WINDOW SUNSHADE MOTOR (LEFT SIDE OF REAR WINDOW SHELF) REAR WINDOW SUNSHADE SWITCH RED WIRE SEAT MASS FUSE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/GRY WIRE W/ HEATED SEATS YEL WIRE

AIR BAG FUSE AIR BAG IND AIR BAG OFF IND AIR BAG ON IND SEAT BELT ON IND BLK WIRE BLK/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE FUSE GND SERIAL DATA GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLU WIRE GRY/ORG WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (BELOW CENTER CONSOLE) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LEFT FRONT IMPACT SENSOR (LEFT SIDE OF CROSS MEMBER) LEFT TAILLAMP ASSEMBLY LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA LT GRN WIRE NCA WIRE ORG/ WIRE ORG/GRN WIRE ORG/LT GRN WIRE ORG/VIO WIRE ORG/WHT WIRE ORG/YEL WIRE PASS AIR BAG ON IND PASS AIR BAG OFF IND PASSENGER AIR BAG DISABLED INDICATOR PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER PRESENCE DETECTION MODULE (UNDER FRONT PASSENGER'S SEAT) PNK WIRE PPL RED WIRE RED/WHT WIRE RIGHT FRONT IMPACT SENSOR (RIGHT SIDE OF CROSS MEMBER) SEAT BELT IND SERIAL DATA (-) SERIAL DATA (+) SHORTING BAR STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/ORG WIRE YEL WIRE YEL/ORG WIRE