Buick LaCrosse II facelift (2013-2016) blk Wiring diagrams

BLK WIRE DOWN HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) PASS/SEAT CIRCUIT BREAKER PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT VERTICAL MOTOR RED/BLK WIRE RED/BRN WIRE YEL WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BRN WIRE DN FWD DOWN FWD DOWN GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) PASS/SEAT CIRCUIT BREAKER PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT FRONT VERTICAL MOTOR (UNDER LEFT FRONT CORNER OF PASSENGER SEAT) PASSENGER SEAT RECLINE MOTOR (LOWER LEFT SIDE OF FRONT PASSENGER SEAT BACK) RECLINE FWD RECLINE RWD RED WIRE RWD VIO WIRE WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 B+ GND SW LOW REF BLK WIRE BLU WIRE BRN WIRE CLOSE COMPUTER DATA LINES SYSTEM DK BLU WIRE EXPRESS CLOSE EXPRESS OPEN GRN WIRE GRY WIRE HOT AT ALL TIMES INTERCONNECT BUS 1 SW DAT 1 LOGIC LT BLU WIRE RED/GRY WIRE RED/WHT WIRE SUNROOF CONTROL MODULE (BEHIND ROOF CONSOLE) SUNROOF FUSE SUNROOF SUNSHADE MOTOR MODULE (REAR OF SUNROOF) SUNROOF SUNSHADE SWITCH SUNROOF SWITCH SW SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) YEL WIRE

BLK WIRE BLU/VIO WIRE BRN/YEL WIRE BUS 4 COMPUTER DATA LINES SYSTEM DK BLU/GRY WIRE DK BLU/VIO WIRE DOOR LOCKS SYSTEM DOWN DRIVER WINDOW MOTOR (DRIVER'S DOOR) DRIVER WINDOW SWITCH EXPRESS EXPRESS STATUS SIG GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ILLUMINATION INDICATOR LEFT FRONT LEFT REAR LEFT REAR WINDOW MOTOR (LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LOCKOUT INDICATOR LOGIC LR DOWN CTRL LR DR AJAR SW SIG LR UP CTRL LT GRN/BLK WIRE LT GRN/GRY WIRE LT GRN/YEL WIRE MIR EWL FR FUSE NETWORK 3 DOWN NETWORK BUS 3 PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) PASSENGER WINDOW SWITCH RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE RF DOWN SIG RF DR AJAR SW SIG RF EXPRESS SIG RF UP SIG RIGHT FRONT RIGHT REAR RIGHT REAR WINDOW MOTOR (RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DOWN CTRL RR UP CTRL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) UNLCK SIG UP VIO/GRY WIRE WDO FRT FUSE WDO RR FUSE WHT/VIO WIRE WINDOW LOCK SWITCH WINDOW SWITCH YEL/BLK WIRE YEL/DK BLU WIRE

1 2 3 4 5 6 7 8 9 10 11 12 BATT 1 2 3 4 5 6 7 8 9 10 11 12 GND AUDIO/VIDEO INPUT ADAPTER BK USB BLK WIRE BLU/VIO WIRE BRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DISPLAY FUSE DRIVER SEAT HEADREST VIDEOS DISPLAY GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LOGIC LOGIS/MODE FUSE LT RR AUD SIG RT AUX AUD SIG LT AUX AUD SIG AUX HI SIG BATT+ LVDS MEDIA DISC PLAYER MINI FUSE MOST CTRL SERIAL DATA NCA WIRE ONSTAR/ UHP FUSE PASSENGER SEAT HEADREST VIDEOS DISPLAY RDO FUSE RED/BLU WIRE RED/VIO WIRE RT RR AUD SIG RR AUD COM SIG AUX AUD COM SIG AUX LOW SIG USB USB GN WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

1 2 8 VOICE SIGNAL LOW REF DRAIN WIRE 15 10 12 B+ SERIAL DATA 1+ SERIAL DATA 1- 24 25 SERIAL DATA (-) 1 SERIAL DATA (+) 1 6 12 5 VOICE SIGNAL LOW REF DRAIN WIRE BACKUP LAMP SPLY VOLT BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX COAX BU GPS COAX GY GPS/CELL COAX VT GPS/CELL COMPUTER DATA LINES SYSTEM GRN/WHT WIRE GROUND GRY/YEL WIRE NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE PU COAX GPS RED/BLU WIRE RED/VIO WIRE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE W/ NAVIGATION W/ ONSTAR W/O NAVIGATION WHT WIRE YEL WIRE

AUXILIARY AUDIO INPUT BATT + BDY RC IGN FUSE BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BUS 10 NETWORK BUS 5 NETWORK CAMERA SHIELD CAMERA SIG (-) CAMERA SIG 2 COAX COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIG + EXTENSION GMLAN LOW SPD GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HOT W/ IGNITION RELAY ENERGIZED HUMAN MACHINE INTERFACE CONTROL MODULE IGN 1 VOLT INFO DISPLAY MODULE LOGIC LOW REF MOST CTRL NAVIGATION NAVIGATION DISPLAY SIG NCA WIRE NETWORK BUS 5 RADIO CONTROLS REARVIEW CAMERA RED WIRE RED/BLU WIRE RED/VIO WIRE SERIAL DATA SERIAL DATA (-) (1) SPLY VOLT UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) USB VIO WIRE VIO/BLK WIRE VOICE AUD SIG WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL 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/WHT WIRE BUS 12 COAX COMPUTER DATA LINES SYSTEM CTRL 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 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 SEEK + MUTE SEEK+ VOL+ SERIAL DATA SIG SOURCE SPEAK SIG STEERING STEERING WHEEL AIR BAG COIL VIO WIRE VOICE LEFT VOICE SIG VOL (-) WHEEL SW WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU 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

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