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

6102 193 INSIDE AIR TEMP SENS LOW REF REAR DEFOG RLY CTRL A/C A/C COMPRESSOR COMPRESSOR SOLENOID VALVE CLUTCH A/C COMPRESSOR (RIGHT FRONT CORNER OF ENGINE) BLK WIRE BLK/BLU WIRE BLOWER MTR SPD CTRL BLU WIRE BRN/LT GRN WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HIGH SPEED RELAY COOLING FAN LOW SPEED RELAY COOLING FAN SPEED CONTROL RELAY DEFOGGER IND DEFOGGER SWITCH DEFOGGER SYSTEM DK BLU WIRE DK BLU/LT GRN WIRE FUSE FUSE 42 FUSE 53 FUSE 54 GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE LEFT COOLING FAN DIODE LINEAR INTERCONNECT NETWORK BUS 9 LOGIC LOW SPEED COOLING FAN DIODE LT GRN DK BLU/ WIRE LT GRN/VIO WIRE NCA WIRE RED/VIO WIRE RED/WHT WIRE SOLAR SENS DRV SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE W/O ONSTAR WHT WIRE WHT/BLU WIRE YEL BLU/ WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

A/C ON IND A/C ON SWITCH AMBIENT AIR TEMPERATURE SENSOR (LEFT FRONT OF VEHICLE AMBIENT LIGHT/ SUNLOAD SENSOR (CENTER OF DASH) ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM BATT POS BLK WIRE BLK/DK BLU WIRE BLU WIRE BRN/LT GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA DEFROST SWITCH DISPLAY DISPLAY DK BLU BLK/ WIRE DK BLU/GRY WIRE DOWN AIR OUTLET IND DOWN AIR OUTLET SWITCH DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND FAN DOWN SWITCH FAN UP SWITCH GMLAN GRN WIRE GRN/YEL WIRE GRY WIRE HVAC CONTROLS INSTRUMENT CLUSTER LEFT COOLING FAN MOTOR LOGIC LOW REF LOW SPD LT GRN WIRE LT GRN/VIO WIRE ON BUMPER FASCIA) RECIRCULATION IND RECIRCULATION SWITCH RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RIGHT COOLING FAN MOTOR SENS SIG SERIAL UP AIR OUTLET IND UP AIR OUTLET SWITCH UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH VOLT W/ ONSTAR W/O ONSTAR WHT/BLU WIRE WINDSHIELD WINDSHIELD DEFROST IND YEL WIRE

A/C COMPRESSOR CLUTCH RELAY A/C EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE ON HVAC MODULE) AUXILIARY HEATER COOLANT PUMP RELAY BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLOWER MTR SPD CTRL BLOWER MTR SPLY VOLT BLU WIRE BRN/LT GRN WIRE BRN/YEL WIRE DK BLU WIRE DUCT LEFT LOWER AIR TEMPERATURE SENSOR (LEFT SIDE OF HVAC CONTROL MODULE) DUCT LEFT UPPER AIR TEMPERATURE SENSOR (LEFT SIDE OF HVAC MODULE) DUCT RIGHT LOWER AIR TEMPERATURE SENSOR (BEHIND HVAC CONTROL MODULE) DUCT RIGHT UPPER AIR TEMPERATURE SENSOR (RIGHT SIDE OF HVAC MODULE) ENGINE COOLANT TEMPERATURE SENSOR (ABOVE STARTER MOTOR) FT BLOWER MTR RTN FUSE FUSE 2 FUSE 3 GRY WIRE GRY/GRN WIRE HEATER COOLANT PUMP HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HVAC/ CNTRL FUSE IPC FUSE LT GRN/VIO WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/GRY WIRE WHT/GRY WIRE WHT/VIO WIRE YEL/BLU WIRE

518 520 LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG A/C LOW REF A/C SENS SIG AFTER BOIL HTR RLY CTRL AIR INLET DOOR ACTUATOR (RIGHT SIDE OF HVAC MODULE) AIR RECIRCULATION DOOR ACTUATOR (MOUNTED TO HVAC MODULE) BATT+ VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE CMPRSR CLUTCH RLY CTRL COMPUTER DATA LINES SYSTEM DK BLU WIRE ENG TEMP SENS SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) GMLAN SERIAL DATA GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HI SPD FAN RLY CTRL HVAC CONTROL MODULE LEFT AIR TEMPERATURE DOOR ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) LO SPD FAN RLY CTRL LOGIC LT GRN WIRE LT GRN/VIO WIRE MODE DOOR ACTUATOR (LOWER LEFT SIDE OF HVAC ASSEMBLY) ORG/BLU WIRE PNK WIRE PPL/BLK WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR (RIGHT SIDE OF HVAC MODULE) SENS LO REF SENS LOW REF SIG GND VIO/GRY WIRE WHT WIRE WHT/GRY WIRE WHT/PNK WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

24 8 SENS LO REF ENG TEMP SENS SIG GND BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN HIGH SPEED RELAY COOLING FAN LOW SPEED RELAY COOLING FAN SPEED CONTROL RELAY DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND FUSE FUSE 42 GMLAN SERIAL DATA GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) HOT W/ ENGINE CONTROL IGNITION RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) IPC FUSE LEFT COOLING FAN DIODE LEFT COOLING FAN MOTOR (BEHIND LEFT SIDE OF RADIATOR) LOGIC LOW SPD LOW SPEED COOLING DIODE LT GRN/VIO WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RIGHT COOLING FAN MOTOR (BEHIND RIGHT SIDE OF RADIATOR) WHT WIRE WHT/BLU WIRE YEL WIRE

135 MM FROM BREAKOUT TO 6105 6105 6106 6106 COMPUTER DATA LINES SYSTEM AWD/SADS FUSE BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/GRY WIRE DK GRN/GRY WIRE DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (+) GMLAN SER DATA (+) GMLAN SER DATA (-) GMLAN SER DATA (-) GRN WIRE GRN/RED WIRE GRY/BLU WIRE GRY/DK BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT VERTICAL BODY ACCELERATION SENSOR (LEFT FRONT STRUT TOWER) LEFT REAR SHOCK ABSORBER ACTUATOR LF WHL ACC LOW REF LOGIC LT GRN WIRE LT GRN/GRY WIRE LT GRN/VIO WIRE NCA WIRE ORG/ WIRE PACK) PNK/BLK WIRE REAR VERTICAL BODY ACCELERATION SENSOR (FRONT OF REAR COMPT) RED/GRY WIRE RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT VERTICAL BODY ACCELERATION SENSOR (RIGHT FRONT STRUT TOWER) RIGHT REAR SHOCK ABSORBER ACTUATOR SUSPENSION CONTROL MODULE (LEFT CORNER OF REAR COMPT) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE WHT WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/RED BLK/BRN WIRE YEL/RED 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

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

2500 2501 COMPUTER DATA LINES SYSTEM 7493 7494 COMPUTER DATA LINES SYSTEM A/C SENS SIG ACCELERATOR PEDAL POSITION SENSOR (LEFT SIDE OF DASH) APP SENS SIG 1 APP SIG BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CHECK ENG IND CTRL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/BRN WIRE DK BLU/GRN WIRE DK BLU/GRY WIRE DK BLU/LT GRN WIRE DK BLU/WHT WIRE ENG RLY CTRL IGN 1 VOLT ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EVAPORATIVE EMISSION VENT SOLENOID VALVE (UNDER LEFT REAR OF VEHICLE) FAN RLY CTRL FUEL LVL SEN SIG FUEL LVL SENS LO REF FUEL PRES SENS SIG FUEL PUMP FUEL PUMP RLY CTRL GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HI SER DATA BUS (+) HI SER DATA BUS (-) IGN 1 VOLT B+ PDL POS LOW REF IGN STARTER RLY CTRL LEVEL SENSOR ASSEMBLY (IN FUEL TANK) LOW REF LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/VIO WIRE PDL POS LOW REF RED/BRN WIRE RED/GRN WIRE RED/LT GRN WIRE SNSR SIG SOLENOID CTRL SOLENOID CTRL SOLENOID CTRL CRUISE/ETC/TCC BRAKE SIG STARTING/CHARGING SYSTEM VIO/DK BLU WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/YEL WIRE WAKE-UP SER DATA WHT WIRE WHT/DK BLU WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE

3 2 1 FAN SPD SIG 1 FAN SPD SIG 2 GROUND 5 4 BATT POS VOLT FAN SPD SNSR SUPPLY VOLT ACCESSORY WAKEUP AJAR SW SIG AUXILIARY/ ELECTRIC TRANSMISSION FLUID PUMP BATT POS VOLT BATT RVC FUSE BATTERY ENERGY CONTROL MODULE BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BPIM BATT FUSE BPIM IGN FUSE BRN/LT GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMP SNSR SIG SNSR LOW REFERENCE CURRENT SNSR LOW CURRENT SNSR SIG CURRENT SNSR SPLY DK BLU WIRE DK BLU/GRY WIRE FAN SPEED SNSR SUPPLY VOLT BATT POSITIVE VOLTAGE SERIAL DATA (+) SERIAL DATA (+) FROM HYBRID/ EV BATTERY SECTION 2 (DIAGRAM 4 OF 4) GRN WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HIGH SER DATA HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HYBRID/EV BATTERY PACK (RIGHT SIDE OF LUGGAGE COMPT) HYBRID/EV BATTERY PACK CABLE COVER HYBRID/EV BATTERY PACK CURRENT SENSOR HYBRID/EV POWERTRAIN CONTROL MODULE STARTER/GENERATOR CONTROL MODULE LOGIC HYBRID/EV BATTERY PACK COOLING FAN LOW SER DATA LT GRN/VIO WIRE LT GRN/WHT WIRE MAIN CONTACTOR MGU CLT PMP FUSE NCA WIRE ORG/ WIRE P-P BLOWER FUSE PRE-CHARGE CONTACTOR RED WIRE RED/BLK WIRE RED/DK BLU WIRE RED/VIO WIRE RED/YEL WIRE REFERENCE RUN/CRANK IGN 1 SER DATA SERIAL DATA SERIAL DATA (+) SERIAL DATA (-) BATT POSITIVE VOLTAGE STARTER/ GENERATOR COOLANT PUMP RELAY STARTER/GENERAROR COOLANT TEMPERATURE SENSOR (RIGHT FRONT SIDE OF ENGINE COMPT) UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/WHT WIRE VIO/YEL WIRE WHT BLU/BLK WIRE WHT WIRE WHT/YEL WIRE YEL/GRN WIRE