Buick LaCrosse II facelift (2013-2016) red/blu Wiring diagrams

BLK WIRE BLU WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DIFFERENTIAL CLUTCH PUMP (UNDER REAR OF VEHICLE ON DIFFERENTIAL) GMLAN DATA BUS+ GND B+ GMLAN DATA BUS- GMLAN DATA BUS- GND COMMUNICATION ENABLE HOT AT ALL TIMES AWD/ FUSE BLOCK SADS (LEFT SIDE OF FUSE BATTERY) NCA WIRE REAR DIFFERENTIAL CLUTCH CONTROL MODULE (MOUNTED TO REAR DIFFERENTIAL) REAR DIFFERENTIAL CLUTCH SOLENOID VALVE (ON REAR DIFFERENTIAL) REAR DRIVE CLUTCH SOLENOID VALVE RED WIRE RED/BLU WIRE RED/WHT WIRE UNDERHOOD WHT WIRE WHT/BLU WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DIFFERENTIAL CLUTCH PUMP (UNDER REAR OF VEHICLE ON DIFFERENTIAL) GMLAN DATA BUS+ GND B+ GMLAN DATA BUS- GMLAN DATA BUS- GND COMMUNICATION ENABLE HOT AT ALL TIMES AWD/ FUSE BLOCK SADS (LEFT SIDE OF FUSE BATTERY) NCA WIRE REAR DIFFERENTIAL CLUTCH CONTROL MODULE (MOUNTED TO REAR DIFFERENTIAL) REAR DIFFERENTIAL CLUTCH SOLENOID VALVE (ON REAR DIFFERENTIAL) REAR DRIVE CLUTCH SOLENOID VALVE RED WIRE RED/BLU WIRE RED/WHT WIRE UNDERHOOD WHT WIRE WHT/BLU WIRE YEL WIRE

2.4L HYBRID 3 25 GND HI SPEED GMLAN SERIAL DATA BUS - 3.6L 5-VOLT ACCESSORY VOLT KEY CAPTURE/ COLUMN LOCK SHIFT POS SIG BCM 2 (LOWER LEFT FUSE SIDE OF DASH) BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SUPPLY VOLTAGE BRAKE APPLY SENSOR SIGNAL BRAKE PEDAL POSITION SENSOR (NEAR TOP OF ACCELERATOR BRK POS BRK POS SIG COMPUTER DATA LINES SYSTEM DK BLU WIRE DLIS FUSE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE START) GROUND DISTRIBUTION SYSTEM HI SPEED GMLAN HI SPEED GMLAN SERIAL DATA BUS - HOT AT ALL TIMES HYBRID/EV BATTERY PACK (RIGHT SIDE OF LUGGAGE COMPT) HYBRID/EV POWERTRAIN CONTROL MODULE IGNITION SWITCH INSTRUMENT PANEL FUSE BLOCK KEY CAPTURE SOLENOID ACTUATOR KEY-IN IGNITION SWITCH LOW REF OFF OFF/RUN/CRANK VOLT PARK POSITION SWITCH PEDAL ASSEMBLY) RED/BLU WIRE RED/BRN WIRE RUN WIRE SNSR SIG STARTER/GENERATOR CONTROL MODULE TRANSMISSION SHIFT LEVER (W/ KEYLESS VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO 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

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 VIDEO 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 VIDEO 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 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 COMMUNICATIONS 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/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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 BATT+ REMOTE ENABLE SIG GND 1 2 3 4 5 6 7 GND 11 12 AUX AUDIO LEFT SIG VIDEO BRIGHT SIG 13 14 15 16 VIDEO MODULE SIG REMOTE SIG (+) AUX VIDEO HI SIG DVD VIDEO SIG 2 (+) 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 VIDEO DISPLAY GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/VIO WIRE HOT AT ALL TIMES INFO DISPLAY MODULE LOGIC INSTRUMENT PANEL FUSE BLOCK LOGIC LT RR AUD SIG RT AUX AUD SIG LT AUX AUD SIG AUX HI SIG BATT+ LVDS MEDIA DISC PLAYER NAVIGATION DISPLAY SIG NCA WIRE PASSENGER SEAT HEADREST VIDEO 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 GN WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE