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

AUTO BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY FOG LAMP SWITCH FRONT FOG LAMP IND GRN WIRE GRY WIRE GRY/RED WIRE HEAD PARK HEADLAMP SWITCH HIGH BEAM LAMP IND INSTRUMENT CLUSTER LEFT FRONT FOG LAMP LOGIC LOW SPD GMLAN SER DATA LT GRN WIRE OFF PARK BRAKE CONTROL SWITCH PARK BRK RELEASE SW SIG PARK BRK SW SIG PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINER) RIGHT FRONT FOG LAMP VIO WIRE VOL REF PARK BRK SPLY VOLT WHT WIRE YEL WIRE YEL/RED WIRE

2500 2501 1134 7684 COMPUTER DATA LINES SYSTEM BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY FOG LAMP SWITCH FRONT FOG LAMP IND FUSE GRN WIRE GROUND GRY WIRE GRY/RED WIRE HEAD PARK AUTO HEADLAMP SWITCH HIGH BEAM LAMP IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LEFT FRONT FOG LAMP LOGIC LOW SPD GMLAN SER DATA LT GRN WIRE MIL IGN OFF PARK BRAKE CONTROL SWITCH PARK BRK APPLY SW SIG PARK BRK RELEASE SW SIG PARK BRK RELEASE SW VOL REF PARK BRK SW SPLY VOLT PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINER) RED WIRE RIGHT FRONT FOG LAMP UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/GRY WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/RED WIRE

185 61 WIPER/WASHER SYSTEM 2.4L 25 26 27 70 FUEL LVL LOW REF FUEL LVL SERIAL DATA 3.6L ABS IND. AIR BAG IND AMBIENT AIR TEMPERATURE SENSOR (LEFT FRONT OF VEHICLE ON BUMPER FASCIA) BATT POS VOLT IGNITION 1 VOLTAGE BELOW STARTER) BLK WIRE BLK/DK BLU WIRE BLK/LT GRN WIRE BLU WIRE BRAKE IND BRN/WHT WIRE CHARGING IND CHECK ENGINE INDI CTRL COMPUTER DATA LINES SYSTEM CRUISE IND DK BLU WIRE DK BLU/GRY WIRE DK BLU/LT GRN WIRE DK BLU/WHT WIRE DRIVER INFORMATION CENTER (DIC) DISPLAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM 3998 3997 1650 COMPUTER DATA LINES SYSTEM ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL PRESSURE SWITCH (FRONT OF ENGINE) ENGINE OIL PRESSURE SWITCH (LOWER FRONT OF ENGINE) ESC OFF IND FRONT FOG LAMPS IND FUEL GAUGE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GROUND GRY WIRE GRY/VIO WIRE HEAD-UP DISPLAY HIGH BEAM IND HOT W/ IGNITION MAIN RELAY ENERGIZED ILLUMINATION INSTRUMENT CLUSTER LEFT TURN IND LINEAR NETWORK BUS 12 LOGIC LOW FUEL WARNING LAMP IND LOW SPD GMLAN SER DATA LOW TIRE PRESSURE IND LOW WASHER FLUID IND LOW WASHER FLUID IND CTRL LOW REF LT GRN WIRE MALFUNCTION IND MIL IGN FUSE NCA WIRE OIL LEVEL IND OIL PRESS SW OUTSIDE AMBIENT AIR TEMP SENS SIG PARK IND PARK LAMPS IND RED WIRE RED/GRY WIRE RED/WHT WIRE RIGHT TURN IND SEAT BELT IND SECURITY IND SERVICE BRAKE IND SPEEDOMETER TACHOMETER TCS/ECS IND TRACTION CONTROL OFF IND UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/DK BLU WIRE

22 1 SERIAL DATA BATT POS VOLT AIR BAG COIL AUTO BCM 3 FUSE BLK WIRE BLK/DK BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) CENTER CONSOLE MULTI-FUNCTION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL, SOUND SYSTEMS DIMMER SWITCH DK BLU WIRE DOME LAMP SWITCH DRIVER DOOR LOCK SWITCH DRIVER SEAT MEMORY SWITCH (W/ MEMORY) FOG LAMP SWITCH GARAGE DOOR OPENER SUNROOF SUNSHADE GRN WIRE HDLP SW PARK LP SIG HEAD HEAD-UP DISPLAY SWITCH (IF EQUIPPED) HEADLAMP SWITCH HORN SWITCH HOT AT ALL TIMES IGNITION MODE SWITCH (W/ KEYLESS ENGINE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LED BACK LEFT FRONT DOME/ READING LAMPS LEFT STEERING WHEEL CONTROLS SWITCH LEFT TAILLAMP ASSEMBLY LIGHT CTRL SW REF LIGHT CTRL SW SIG LIGHT DIMMING CONTROL LOW REF LT GRN WIRE OFF ORG/VIO WIRE OUTSIDE REARVIEW MIRROR SWITCH (W/O MEMORY) PARK PARKING ASSIST ON/ OFF SWITCH (W/ REAR PARKING ASSIST) PARKING BRAKE CONTROL SWITCH (BEHIND LEFT REAR WHEEL LINER) PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW SWITCH PNK WIRE REAR DOME READING LAMPS REAR WINDOW SUNSHADE SWITCH (IF EQUIPPED) RED/WHT WIRE RIGHT FRONT DOME/ READING LAMPS RIGHT STEERING WHEEL CONTROLS SWITCH SEAT MEMORY CONTROL MODULE (W/ MEMORY) (UNDER DRIVER'S SEAT) SERIAL DATA LOGIC STEERING WHEEL) SUNROOF SWITCH (IF EQUIPPED) SWITCH VIO WIRE W/ MEMORY W/O MEMORY YEL WIRE YEL/BLK WIRE

11 12 LOW REF SEAT SW SIG (1) BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DOWN NETWORK BUS 8 DRIVER SENS SIG GMLAN SERIAL DATA GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT POS CTRL LOGIC LOGIC PASSENGER WINDOW SWITCH LOW REF LT GRN WIRE LT GRN/BLK WIRE MIR EWL FR FUSE MOTOR COMM MTR COMM RIGHT POS CTRL NAVIGATION SYSTEM NETWORK BUS 8 ORG/ WIRE ORG/BLK WIRE OUTSIDE REARVIEW MIRROR SWITCH 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 POSITION CTRL POSITIVE VOLT PPL PPL SENS SIG RED/VIO WIRE RIGHT TURN SIGNAL REPEATER LAMP SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) SENS SIG SENS SIG PASSENGER SET SIG UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) UP POS CTRL VIO WIRE WHT WIRE YEL/VIO WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/YEL WIRE DEFOGGER SYSTEM DK BLU WIRE DK BLU/WHT WIRE DRIVER OUTSIDE REARVIEW DRIVER OUTSIDE REARVIEW MIRROR DRIVER OUTSIDE REARVIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REARVIEW MIRROR LAMP ASSEMBLY DRIVER OUTSIDE REARVIEW MIRROR MOTOR DRIVER SEAT MEMORY SWITCH DRIVER SIDE OBJECT DETECTION INDICATOR GRN/BLU WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE LAMP SUPPLY VOLT LEFT TURN SIGNAL REPEATER LAMP LT GRN WIRE MEM MIRROR DIMMING MIRROR GLASS MIRRORS SYSTEM NAVIGATION SYSTEM ORG/BLK WIRE VIO WIRE VIO/GRY WIRE WHT WIRE YEL 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

BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL LEVEL SWITCH (LOWER RIGHT FRONT SIDE OF ENGINE, MOUNTED TO OIL PAN) FUEL INJECTORS (TOP OF ENGINE) GRY/DK BLU WIRE LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/GRY WIRE LT GRN/WHT WIRE NCA WIRE PPL PPL/WHT WIRE SECONDARY AIR INJECTION BANK 1 SOLENOID VALVE (LEFT OF EXHAUST PORT) SECONDARY AIR INJECTION BANK 2 SOLENOID VALVE (LEFT OF EXHAUST PORT) SPARK PLUG VIO/DK BLU WIRE VIO/GRY WIRE VIO/LT GRN WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/LT GRN WIRE

BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BRN WIRE BRN/DK BLU WIRE DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE GRY/DK BLU WIRE GRY/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE LT GRN/DK BLU WIRE NCA WIRE SPARK PLUG VIO/BLK WIRE VIO/DK BLU WIRE VIO/LT GRN WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE YEL WIRE YEL/DK BLU WIRE YEL/VIO WIRE

BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/GRY WIRE BLK/LT GRN WIRE BLK/VIO WIRE BRN WIRE BRN/DK BLU WIRE CAMSHAFT POS EXHAUST SNSR 1 CAMSHAFT POS INTAKE SNSR 2 CAMSHAFT POS EXHAUST SNSR 2 CAMSHAFT PHASER INTAKE SOL 1 CAMSHAFT POS EXHAUST SNSR LO REF 1 CAMSHAFT POS INTAKE SNSR LO REF 2 COOLANT TEMP SNSR LO REF DK BLU WIRE DK BLU/GRY WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE ENG COOLANT TEMP SNSR SIG OIL PRESSURE SWITCH SIGNAL ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) ENGINE OIL PRESSURE SWITCH (LOWER FRONT OF ENGINE) GRY/DK BLU WIRE GRY/YEL WIRE HI VOLT CTRL CYL 4 HI VOLT CTRL CYL 5 HI VOLT CTRL CYL 2 LT GRN WIRE LT GRN/BRN WIRE LT GRN/DK BLU WIRE VIO/BLK WIRE VIO/BRN WIRE VIO/DK BLU WIRE VIO/LT GRN WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE YEL WIRE YEL/DK BLU WIRE YEL/VIO WIRE