Buick LaCrosse III (2016-2019) lt grn Wiring diagrams

ACC WAKEUP SER DATA AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE GEAR SHIFT POSITION SENSOR GRN WIRE GRY WIRE HIGH SPD SER DATA (+) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT LINE PRESSURE CONTROL SOLENOID VALVE LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PARK/NEUTRAL SIGNAL 1 PPL/BLK WIRE PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 PRESSURE CONTROL SOLENOID VALVE 7 RED WIRE RED/GRN WIRE SERIAL DATA (-) (1) SHIFT SOLENOID VALVE 1 SHIFT SOLENOID VALVE 2 SIG GND SUPPLY VOLT 2 TCM/ IGN FUSE TCM/ECM FUSE TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TRANSMISSION CONTROL MODULE TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION OUTPUT SHAFT SPEED SENSOR UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE YEL WIRE

ACC IGN VOLT ACTIVE SIG ANT 1 SIG HI ANT 1 SIG LO ANT 2 SIG HI ANT 2 SIG LO ANT 3 SIG HI ANT 3 SIG LO ANT SIG HI ANT SIG LO BATT POSITIVE VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE CENTER CONSOLE FRONT KEYLESS ENTRY ANTENNA CENTER CONSOLE REAR KEYLESS ENTRY ANTENNA COMPUTER DATA LINES SYSTEM DK GRN/BLK WIRE DRV DR ANT SIG HI DRV DR ANT SIG LO DRV DR HANDLE SW SIG DRV DR OPEN SW SIG GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE LO SPD GMLAN SERIAL DATA LR DR HANDLE SW SIG LT GRN WIRE PASS DR ANT SIG HI PASS DR ANT SIG LO PASSIVE START SW 2 LO REF PASSIVE START SW SIG 2 PEPS FUSE POWER DISTRIBUTION SYSTEM PPL PPL PASS DR HANDLE SW SIG RAP RLY 2 COIL CTRL REAR COMPARTMENT KEYLESS ENTRY ANTENNA RED/WHT WIRE RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE COMPUTER DATA LINES SYSTEM DRIVER HEATED SEAT SWITCH DRV SEAT VENT MOTOR CTRL 1 GRN/VIO WIRE GROUND HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROLS LEFT HIGH HEAT IND LEFT LOW HEAT IND LEFT MED HEAT IND LOGIC LOGIC DRIVER BACK SEAT BLOWER MOTOR LOGIC DRIVER CUSHION SEAT BLOWER MOTOR LOW SPEED GMLAN SERIAL DATA LT GRN WIRE NCA WIRE PASS SEAT VENT MTR CNTRL (1) PASSENGER BACK SEAT BLOWER MOTOR PASSENGER CUSHION SEAT BLOWER MOTOR PASSENGER HEATED SEAT SWITCH POWER DISTRIBUTION SYSTEM RIGHT HIGH HEAT IND RIGHT LOW HEAT IND RIGHT MED HEAT IND RUN/CRANK IGN 1 VOLT RVC/VENT FUSE UNDERHOOD FUSE BLOCK VIO/WHT WIRE

AIR CONDITIONING SYSTEM AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR BATT POS VOLT BLK WIRE BLK/LT GRN WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/GRY WIRE FOG LAMP FUSE FOG LAMP RLY CTRL FRONT FOG LAMP RELAY FRONT FOG LAMP SW SIG FTP FUSE 18 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI BEAM RLY CTRL HDLP LO BEAM RLY CTRL HDLP OFF SIG CTRL HDLP SW FLASH TO PASS SIG HDLP SW ON SIG HDLP SW PARK LAMP SIG HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HI BEAM LT/RT FUSE HI SPD GMLAN SER DATA - HOT AT ALL TIMES HVAC CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP BALLAST LEFT HIGH BEAM SOLENOID ACTUATOR LEFT LOW BEAM HEADLAMP LO BEAM HID LT FUSE LO BEAM HID RT FUSE LOW REF LT GRN WIRE NCA WIRE RED/GRY WIRE RED/YEL WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK W/ ONSTAR W/O ONSTAR WHT WIRE YEL WIRE YEL/GRN WIRE

BATT POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/DK BLU WIRE BLK/GRN WIRE BLU WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/YEL WIRE COMMON CTRL COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DK BLU/DK GRN WIRE DK GRN/WHT WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/GRN WIRE LH (-) RH (+) SIG LIN DATA BUS 8 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA LIN BUS 8 LT GRN WIRE MEM SEAT SW SET SIG MEM SEAT SW SIG (1) MEM SW LOW REF NAVIGATION SYSTEM PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR COURTESY LAMP PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER OUTSIDE REAR VIEW MIRROR MOTOR PASSENGER SIDE OBJECT DETECTION INDICATOR PASSENGER WINDOW SWITCH RED/BLU WIRE RH (+) LH (-) CTRL RIGHT TURN SIGNAL REPEATER LAMP SEAT MEMORY CONTROL MODULE UP (+) DOWN (-) CTRL UP DOWN SIG VIO/WHT WIRE WHT WIRE YEL/RED WIRE YEL/VIO WIRE

BATT POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/DK BLU WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/DK GRN WIRE DK GRN/WHT WIRE DOWN DOWN SW SIG DRIVER SEAT MEMORY SWITCH EXIT FORWARD SW SIG FUSE 6 GRN/WHT WIRE GRY/VIO WIRE HOT AT ALL TIMES ILL INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA BUS 8 LOW SPEED GMLAN SERIAL DATA LIN DATA BUS 8 LT BLU/YEL WIRE LT GRN WIRE LT GRN/BRN WIRE MEM SEAT SW SET SIG MEM SEAT SW SIG (1) MEM SW LOW REF MTR FORWARD CTRL MTR REARWARD CTRL REARWARD SW SIG RED WIRE RED/BLU WIRE RED/BRN WIRE RED/DK BLU WIRE RWD SEAT MEMORY CONTROL MODULE SET- STEERING COLUMN POSITION CONTROL MODULE STEERING COLUMN TELESCOPE MOTOR STEERING COLUMN TILT MOTOR STEERING COLUMN TILT, TELESCOPE SWITCH SW LOW REF TELESCOPE MTR LOW REF TELESCOPE MTR SIG TILT MTR DOWN CTRL TILT MTR LOW REF TILT MTR SIGNAL TILT MTR UP CTRL UNDERHOOD FUSE BLOCK UP SW SIG VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WNDW MIR SEAT FUSE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE

BATTERY POSITIVE VOLTAGE BLK WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER PWR SEAT FUSE DRIVER SEAT FRONT VERTICAL MOTOR DRIVER SEAT HORIZONTAL MOTOR DRIVER SEAT REAR VERTICAL MOTOR DRIVER SEAT RECLINE MOTOR FRONT VERTICAL MTR DWN CTRL FRONT VERTICAL MTR UP CTRL GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HORIZONTAL MTR FORWARD CTRL HORIZONTAL MTR REARWARD CTRL HOT AT ALL TIMES LINEAR INTERCONNECT NETWORK BUS 8 LOW SPEED GMLAN SERIAL DATA LT GRN WIRE REAR VERTICAL MTR DOWN CTRL REAR VERTICAL MTR UP CTRL RECLINE MTR FORWARD CTRL RECLINE MTR REARWARD CTRL RED/BLU WIRE RED/DK BLU WIRE RED/VIO WIRE SEAT MEMORY CONTROL MODULE (UNDER DRIVER'S SEAT) UNDERHOOD FUSE BLOCK WHT/BLK WIRE WHT/RED WIRE WNDW MIR SEAT FUSE YEL WIRE YEL/BLU WIRE

A/C COMPRESSOR CLUTCH RELAY A/C HEV FUSE ACC IGN VOLT ACC IND ACC LED SIG BLK WIRE BLK/GRY WIRE BODY CONTROL MODULE BRN/BLK WIRE CHARGE IND CTRL COOL FAN FUSE DC DC BATT 2/AWD FUSE DK BLU/BLK WIRE DK BLU/LT GRN WIRE DK GRN/BLK WIRE EBOOST/COOL FAN LT FUSE ENGINE CONTROLS IGNITION RELAY ENGINE START/ STOP FOG LAMP FUSE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 8) FROM MOBILE DEVICE WIRELESS CHARGER MODULE (DIAGRAM 5 OF 8) FRONT FOG LAMP RELAY FUEL MDL FUSE FUEL PUMP DRIVER CONTROL MODULE GRN WIRE GRY WIRE HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HORN RELAY IGNITION MODE SWITCH ILL KEYLESS ENTRY CONTROL MODULE LEFT COOLING FAN MOTOR LOW REFERENCE LT GRN WIRE NCA WIRE REAR DEFOGGER RELAY REAR DIFFERENTIAL CLUTCH CONTROL MODULE REAR WINDOW WASHER PUMP RELAY RED/BRN WIRE RED/DK BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COOLING FAN MOTOR RR HTD SEAT/ BSM/ESS FAN FUSE RUN/CRANK IGN 1 VOLT START IND START LED SIG START SW SIG 2 STARTER RELAY SUSPENSION CONTROL MODULE SW MODE VOLT TO FRT HEATED SEAT FUSE (DIAGRAM 4 OF 8) TO FUSE 27 (DIAGRAM 5 OF 8) TO IGNITION MAIN RELAY (DIAGRAM 8 OF 8) TO RETAINED ACCESSORY POWER RELAY (DIAGRAM 5 OF 8) TO TCM/ ECM FUSE (DIAGRAM 6 OF 8) TO WNDW MIR SEAT FUSE (DIAGRAM 3 OF 8) TRANSMISSION RANGE CONTROL MODULE TRCM FUSE VIO/BLK WIRE VIO/YEL WIRE WASH PUMP FUSE WINDSHIELD WASHER PUMP RELAY YEL WIRE YEL/GRN WIRE

AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BLK WIRE BLU WIRE BRN/ORG WIRE COMPUTER DATA LINES SYSTEM DK BLU/YEL WIRE DRIVER KNEE AIR BAG DRV KNEE MOD HI CTRL DRV KNEE MOD LO CTRL FRONT OVERHEAD CONSOLE ASSEMBLY GRN WIRE GRY WIRE GRY/LT GRN WIRE GRY/ORG WIRE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER LO REF LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA LOW SPEED GMLAN SERIAL DATA LT GRN WIRE MOD STAGE 1 HI MOD STAGE 1 LO MOD STAGE 2 HI MOD STAGE 2 LO ORG/ WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS KNEE MOD LO CTRL PASS STAGE 1 HI PASS STAGE 1 LO PASS STAGE 2 HI PASS STAGE 2 LO PASSENGER AIR BAG DISABLED INDICATOR PASSENGER KNEE AIR BAG PASSENGER PRESENCE MODULE PASSENGER SEAT BELT TENSION SENSOR RED WIRE RED/DK BLU WIRE RED/GRN WIRE SEAT BELT IND SEAT BELT IND PASS AIR BAG ON IND PASS AIR BAG OFF IND SEAT BELT ON IND SENS SIG SERIAL DATA SHORTING BAR STEERING WHEEL AIR BAG COIL VIO WIRE VIO/WHT WIRE WHT WIRE WHT/DK BLU WIRE WHT/ORG WIRE YEL WIRE YEL/ORG 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