Buick LaCrosse III (2016-2019) driver information center display Wiring diagrams

AIR RECIRCULATION DOOR ACTUATOR BLK/YEL WIRE BLU/BRN WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND GRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE INSTRUMENT CLUSTER LEFT AIR TEMPERATURE DOOR ACTUATOR LOGIC MODE DOOR ACTUATOR MOST SERIAL DATA (+) RED/WHT WIRE VIO/GRN WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL/BLK WIRE YEL/BRN WIRE

BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENS CTRL CURRENT SENS LOW REF CURRENT SENS SIG DK BLU WIRE DK BLU/VIO WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE FUSE 1 FUSE 4 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GRY WIRE GRY/LT GRN WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) INSTRUMENT CLUSTER LOGIC LOW SPEED GMLAN SERIAL DATA RED WIRE RED/WHT WIRE RED/YEL WIRE SIG GND STARTER MOTOR VIO WIRE WHT WIRE WHT/YEL WIRE YEL WIRE

BLK WIRE CENTER CONSOLE FLOOD LAMP COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DK GRN/GRY WIRE DK GRN/YEL WIRE DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY GRY WIRE GRY/BRN WIRE GRY/LT GRN WIRE INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL ACCENT LAMP LEFT REAR DOOR ACCENT LAMP LEFT REAR DOOR HANDLE FLOOD LAMP LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LOW SPD GMLAN SER DATA 2 LR DR AJAR SW SIG MIDDLE INSTRUMENT PANEL ACCENT LAMP NCA WIRE RIGHT INSTRUMENT PANEL ACCENT LAMP RIGHT REAR DOOR ACCENT LAMP RIGHT REAR DOOR HANDLE FLOOD LAMP WHT/BRN WIRE WHT/YEL WIRE

73 8 SIG GND ADAPTIVE CRUISE IND APP LO REF (1) APP LOW REF 2 APP SIG (1) APP SIG (2) BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE POS SENS LOW REF BRAKE POS SENS SIG BRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE IND CRUISE/ETC/TCC BRK SIG DATA 2 (+) DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER DISPLAY ECM IGN FUSE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUSE 20 FUSE 5 GMLAN GRY WIRE GRY/LT GRN WIRE HIGH SPD GMLAN SERIAL DATA (+) 1 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPD LT GRN/WHT WIRE MAIN RELAY FUSED SUPPLY 2 RED WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SERIAL SERIAL DATA (-) (1) SET/COAST/RESUME/ ACCELERATE SW THROTTLE ACTUATOR CTRL CLOSE THROTTLE ACTUATOR CTRL OPEN THROTTLE POS SENS LOW REF THROTTLE POS SENS SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VIO/LT GRN WIRE WHT WIRE WHT/BLU WIRE WHT/LT GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

BATTERY POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLU/GRY WIRE BRN/GRN WIRE BRN/LT BLU WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY FT AXLE LEVEL SENS SIG FT LEVEL SENS LOW REF GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRY/LT BLU WIRE GRY/LT GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LF DAMPING SERVO CTRL LOGIC LOW SPEED GMLAN SERIAL DATA 2 LR DAMPING SERVO CTRL NCA WIRE RED/GRN WIRE RF ACCEL LOW REF RF DAMPING SERVO CTRL RF WHEEL ACCEL SIG RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR DAMPING SERVO CTRL RR HTD SEAT/ BSM/ESS FAN FUSE SERIAL DATA COMM ENABLE SUSPENSION CONTROL MODULE UNDERHOOD FUSE BLOCK WHT WIRE WHT/DK BLU WIRE WHT/RED 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 BLU WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DOOR AJAR IND DRIVER DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRIVER INFORMATION CENTER DISPLAY GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY/LT GRN WIRE INSTRUMENT CLUSTER LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE SWITCH LO SPD GMLAN SERIAL DATA 2 LOGIC LT GRN WIRE PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PPL REAR FASCIA KEYLESS ENTRY ANTENNA RED WIRE RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH SECURITY IND VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE

AUTOMATIC TRANSMISSION ASSEMBLY BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/GRN WIRE BODY CONTROL MODULE (UNDER FLOOR CONSOLE) CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/BLK WIRE DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUSE 1 FUSE 2 GMLAN SERIAL DATA GMLAN SERIAL DATA - 1 GRY WIRE GRY/LT GRN WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED IGN COIL FUSE IGNITION MODE SWITCH INSTRUMENT CLUSTER KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LO SPD GMLAN SERIAL DATA LOGIC LOW REF LOW SPEED LT GRN WIRE MAIN RLY FUSED SPLY 2 MODE VOLTAGE PARK/NEUTRAL SIG (1) PASSIVE START SW SIG 2 RED WIRE RED/YEL WIRE SIG GND STARTER ENABLE RELAY CTRL STARTER MOTOR STARTER RELAY STRTR MTR FUSE TRANSMISSION CONTROL MODULE TRANSMISSION PARK/ NEUTRAL SIG 1 UNDERHOOD FUSE BLOCK VIO WIRE VIO/DK BLU WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLK WIRE

AJAR SW SIG 1 B+ VOLT BLK WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY EXTERIOR REAR COMPARTMENT LID UNLATCH SWITCH FUSE 41 20 GRY/LT GRN WIRE GRY/YEL WIRE HANDLE SW OPEN SIG HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INTERIOR REAR COMPARTMENT LID UNLATCH SWITCH INTERIOR RELEASE SIG LOGIC LOW SPD GMLAN SERIAL DATA 2 LOW SPEED GMLAN SERIAL DATA (+) 1 MTR RELEASE CTRL REAR CLOSR FUSE REAR COMPARTMENT LID LATCH REAR COMPARTMENT LID UNLATCH RELAY RED/BRN WIRE UNDERHOOD FUSE BLOCK VIO/DK BLU WIRE VIO/GRY WIRE W/ STOP/START SYSTEM W/O STOP/START SYSTEM WHT WIRE YEL WIRE YEL/DK BLU WIRE

BATT POS VOLT BLK WIRE BODY CONTROL MODULE (UNDER FRONT CONSOLE) BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DC DC BATT 2/AWD FUSE DELAY SWITCH DK BLU WIRE DK GRN/BRN WIRE DRIVER INFORMATION CENTER DISPLAY FRT WPR FUSE FUSE 20 FUSE 41 GRY WIRE GRY/LT GRN WIRE GRY/VIO WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA BUS 1 LOGIC LOW SPD GMLAN SERIAL DATA 2 OFF MIST POWER SUPPLY TRANSFORMER RED/BRN WIRE RED/DK BLU WIRE RED/YEL WIRE SPLY VOLT 1 UNDERHOOD FUSE BLOCK W/O START/STOP SYSTEM W/ START/STOP SYSTEM WASH PUMP FUSE WASHER SWITCH WHT WIRE WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WASHER RLY CTRL WINDSHIELD WASHER SW SIG WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MTR RLY COIL CTRL WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW LO REF WINDSHIELD WIPER SW LOW SIG WINDSHIELD WIPER/WASHER SWITCH WIPER SWITCH YEL WIRE