Buick LaCrosse III (2016-2019) dk grn/yel Wiring diagrams

ACCESSORY WAKEUP SERIAL DATA BACKUP LAMP CTRL BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/VIO WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/DK GRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG CRUISE CONTROL SYSTEM CURRENT SENS CTRL CURRENT SENS LOW REF CURRENT SENS SIG DK BLU WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/BRN WIRE DK GRN/VIO WIRE DK GRN/YEL WIRE DOME LAMP OFF INDICATOR CTRL DOOR LOCKS, ANTI-THEFT SYSTEMS DR LCK ACTUATOR UNLOCK CTRL DR LOCK ACTUATOR LOCK CTRL DR LOCK ACTUATOR LOCK CTRL 2 DRV DR LOCK SW LOCK SIG DRV DR LOCK SW UNLOCK SIG DRV OUTSIDE REAR VIEW MIRR PUDDLE LAMP CTRL FOG LAMP RLY CTRL LIFT GLASS/REAR COMPT LID FUSE 4 GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HDLP HIGH BEAM RLY CTRL HEADLAMP LOW BEAM RLY CTRL HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (-) (1) HI SPEED GMLAN DATA BUS (-) HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INADVERTENT POWER CTRL INTERIOR LAMP CTRL INTERIOR LAMP DEFEAT SW SIG PPL LOGISTIC MODE RLY OPEN CTRL LED AMBIENT LIGHTING CTRL 1 LED BACKLIGHT DIMMING CTR LEFT CORNERING LAMP RLY CTRL LEFT PARK LAMP CTRL LEFT REAR DR LOCK MTR STATUS LEFT REAR STOP LAMP CTRL LF TURN SIG LAMP CTRL LIFT GLASS/REAR COMPT LID INTERIOR RELEASE SIG LIFTGATE AJAR SWITCH SIG 1 LINEAR INTERCONNECT NETWORK BUS 2 LINEAR INTERCONNECT NETWORK BUS 3 LOGISTIC MODE RLY CLOSE CTRL LR STOP/TURN SIG LAMP CTRL MTR RELEASE CTRL CRUISE/ETC/TCC BRAKE SIGNAL PASS DR LOCK SW LOCK CTRL PASS DR LOCK SW UNLOCK CTRL POWER DISTRIBUTION SYSTEM PUSH BUTTON START CHALLENGE ACTIVE REAR COMPT LID LAMP CTRL REAR LICENSE LAMP CTRL RED/GRY WIRE RED/WHT WIRE REMOTE PRNDL ENABLE RIGHT CORNERING LAMP RLY CTRL RIGHT FRT DRL CTRL RIGHT FRT TURN SIG LAMP CTRL RIGHT PARK LAMP CTRL RIGHT REAR DR LOCK MTR STATUS RIGHT REAR STOP LAMP CTRL RIGHT REAR STOP/TURN LAMP CTRL RR CLOSURE HANDLE SW OPEN SIG LINEAR INTERCONNECT NETWORK DATA BUS 1 RUN/CRANK RELAY COIL CTRL SERIAL DATA COMM ENABLE STARTING/CHARGING SYSTEM STOP LAMP RELAY COIL CTRL TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS VIO WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/YEL WIRE WINDSHIELD WASHER RELAY CTRL WINDSHIELD WIPER MTR RLY COIL WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/DK BLU WIRE

BLU/GRN WIRE BLU/GRY WIRE DATA DATA BUS 10 DATA BUS 12 DATA BUS 2 DATA BUS 5 DK BLU WIRE DK BLU/VIO WIRE DK BLU/YEL WIRE DK GRN/BLK WIRE DK GRN/DK BLU WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE GRY/LT GRN WIRE GRY/VIO WIRE HEAD-UP DISPLAY HI SPD GMLAN SERIAL DATA (+) 9 INFO DISPLAY MODULE INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT CLUSTER LOGIC LIN SERIAL LO SPD GMLAN LOGIC LOW SPD GMLAN LOW SPD GMLAN SERIAL DATA 2 LT GRN WIRE MEDIA DISC PLAYER MOST CONTROL MOST SERIAL RADIO RIGHT STEERING WHEEL CONTROLS SWITCH LOGIC SERIAL DATA 2 SERIAL DATA COMM ENABLE STEERING WHEEL AIR BAG COIL TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE W/ INFOTAINMENT CONTROL TOUCHPAD W/ INFOTAINMENT CONTROL TOUCHPAD W/ ONSTAR W/O ONSTAR WHT WIRE WHT/DK BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE

BLK WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DOOR AJAR IND DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH ENGINE CONTROL MODULE GRY WIRE GRY/LT GRN WIRE HOOD AJAR SWITCH HOOD STATUS A SIG INSTRUMENT CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LO SPD GMLAN SERIAL DATA 2 LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR PPL RF DR AJAR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SECURITY IND SERIAL DATA (-) (1) STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DC DC BATT 2/AWD FUSE DK BLU/BLK WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRY WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY POSITIVE VOLT POWER SUPPLY TRANSFORMER RED/DK BLU WIRE RED/YEL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SERIAL DATA (+) (3) SPLY VOLT 1 STATUS SIG SW SIG UNDERHOOD FUSE BLOCK UNLOCK SIG VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ START/STOP SYSTEM WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

ACC IGN VOLT ACTIVE SIG ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POSITIVE VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DK BLU WIRE DK GRN/YEL WIRE DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG ENGINE CONTROL MODULE FUSE 20 FUSE 41 GRY WIRE GRY/WHT WIRE HAZARD SW SIG HEADLAMP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HOOD AJAR SWITCH HOOD STATUS A SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIFTGATE AJAR SW SIG 1 LIGHTS SYSTEM LOGIC LR DR LCK MTR STATUS LT GRN WIRE PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW MOTOR PPL REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG GND RF DR AJAR RR DR LCK MTR STATUS RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SERIAL DATA (-) (1) SIG SW SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE YEL/VIO WIRE

BLK WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DOOR AJAR IND DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH ENGINE CONTROL MODULE GRY WIRE GRY/LT GRN WIRE HOOD AJAR SWITCH HOOD STATUS A SIG INSTRUMENT CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LO SPD GMLAN SERIAL DATA 2 LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR PPL RF DR AJAR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SECURITY IND SERIAL DATA (-) (1) STATUS SIG SW SIG UNLOCK SIG VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DC DC BATT 2/AWD FUSE DK BLU/BLK WIRE DK BLU/VIO WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRY WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG PASSENGER DOOR LATCH ASSEMBLY POSITIVE VOLT POWER SUPPLY TRANSFORMER RED/DK BLU WIRE RED/YEL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SERIAL DATA (+) (3) SPLY VOLT 1 STATUS SIG SW SIG UNDERHOOD FUSE BLOCK UNLOCK SIG VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ START/STOP SYSTEM WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE

ACC IGN VOLT ACTIVE SIG ACTR CTRL ACTR RECEIVE ACTR TRANSMIT AMBIENT LIGHT/SUNLOAD SENSOR BATT POSITIVE VOLT BLK WIRE BLU WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DK BLU WIRE DK GRN/YEL WIRE DR LCK ACTUATOR LCK CTRL DR LCK ACTUATOR LCK CTRL 2 DR LCK ACTUATOR UNLCK CTRL DRIVER DOOR LOCK SWITCH DRV DR LCK SW LCK SIG DRV DR LCK SW UNLCK SIG ENGINE CONTROL MODULE FUSE 20 FUSE 41 GRY WIRE GRY/WHT WIRE HAZARD SW SIG HEADLAMP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HOOD AJAR SWITCH HOOD STATUS A SIG HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIFTGATE AJAR SW SIG 1 LIGHTS SYSTEM LOGIC LR DR LCK MTR STATUS LT GRN WIRE PASS DR LCK SW LCK CTRL PASS DR LCK SW UNLCK CTRL PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW MOTOR PPL REAR COMPARTMENT LID LATCH RED/BRN WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR CTRL REMOTE FUNCTION ACTR RECEIVE SIG REMOTE FUNCTION ACTR TRANSMIT SIG GND RF DR AJAR RR DR LCK MTR STATUS RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SERIAL DATA (-) (1) SIG SW SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/DK BLU WIRE YEL/DK GRN WIRE YEL/VIO WIRE

AUTO BATT POS VOLT BLK WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRAKE WARNING IND COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER INFORMATION CENTER DISPLAY FRONT OVERHEAD CONSOLE ASSEMBLY FUSE 18 GRN WIRE GROUND GRY WIRE GRY/LT GRN WIRE HDLP OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEAD HEADLAMP SWITCH HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOGIC LOW SPD GMLAN SER DATA 2 LR DR AJAR SW SIG OFF OFF HEAD PARK PARK AUTO PASSENGER AIR BAG DISABLED INDICATOR PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR RED/GRY WIRE RF DR AJAR SW SIG SEAT BELT IND SEAT BELT ON IND TIRE PRESSURE IND VIO WIRE VIO/WHT WIRE WHT WIRE

BLK WIRE BLK/ORG WIRE BLU/BLK WIRE BLU/VIO WIRE BRAKE FLUID LEVEL SWITCH BRK FLUID LEVEL SENS SIG BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK BLU WIRE DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH DRIVER WINDOW MOTOR DRV SEAT BELT LOW REF DRV SEAT BELT SW SIG ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRY WIRE GRY/RED WIRE HI SPD GMLAN SER DATA (+) 1 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE LF DR AJAR SW SIG LOGIC LOW SPD GMLAN SER DATA LT GRN WIRE NCA WIRE ORG/BRN WIRE ORG/VIO WIRE PARK BRAKE CONTROL SWITCH PARK BRK APPLY SW SIG PARK BRK REL SW SIG PARK BRK REL SW VOLT REF PARK BRK SW SIG PARK BRK SW VOLT REF PASS SEAT BELT LOW REF PASS SEAT BELT SW SIG PASSENGER SEAT BELT BUCKLE PASSENGER SEAT BELT SWITCH PRK BRK SW SPLY VOLT RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG SEAT BELT IND PASS AIR BAG SUPPLEMENTAL RESTRAINTS SYSTEM VIO/WHT WIRE WHT WIRE YEL WIRE YEL/RED WIRE