Buick LaCrosse II facelift (2013-2016) electronic brake control module (left side of engine compt) Wiring diagrams

12 VOLTAGE BRAKE FLUD LVL SENS SIG BRK VACUUM SW SIG SERIAL DATA- SERIAL DATA + 5 VOLT REF BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE BOOSTER PUMP MOTOR RELAY (RIGHT SIDE OF ENGINE COMPT) BRAKE FLUID LEVEL SWITCH (LEFT KICK (ON BRAKE FLUID PANEL) RESERVOIR) BRAKE PRESSURE MODULATOR BRAKE VACUUM SENS SIG WHL SPD SENS SIG LF LF WHL SPD SENS LOW REF BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE FUSE 26 FUSE 41 GRN/BRN WIRE GRN/GRY WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT WHEEL SPEED SENSOR (LEFT FRONT STEERING KNUCKLE ASSEMBLY) LEFT REAR WHEEL SPEED SENSOR (LEFT REAR UPPER CONTROL ARM) LOW REFERENCE BATTERY + RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT WHEEL SPEED SENSOR SENS SIG RIGHT REAR LOW REF RIGHT REAR SERIAL DATA + SERIAL DATA - SERIAL DATA - SERIAL DATA + WHL SPD SENS SIG RF WHL SPD SENS LOW RF SERIAL DATA ENABLE WHL SPD SENS SIG LR WHL SPD SENS LOW REF LR UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE W/ CONTINUOUSLY VARIABLE REAL TIME DAMPING CHASSIS W/O CONTINUOUSLY VARIABLE REAL TIME DAMPING CHASSIS WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

BLU WIRE BLU/YEL WIRE BREAKOUT TO EXTENSION HARNESS) COMM ENABLE DATA COM ENABLE DK BLU WIRE DK BLU/YEL WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GRN WIRE HS SERIAL DATA - LOW SPEED GMLAN PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINER) REAR DIFFERENTIAL CLUTCH CONTROL MODULE (AWD) (MOUNTED TO REAR DIFFERENTIAL) SER DATA (+) 2 SER DATA (-) (1) SERIAL DATA VIO/YEL WIRE W/ ADAPTIVE CRUISE CONTROL W/O ADAPTIVE CRUISE CONTROL W/O CONTINUOUSLY VARIABLE REAL TIME DAMPING W/O CONTINUOUSLY VARIABLE REAL TIME DAMPING, AWD WHT WIRE WHT/BLU WIRE

1 2 3 4 5 6 DATA (-) DATA (-) DATA (+) DATA (+) VOLT GND 1 2 BATTERY GND ANTI-LOCK BRAKES SYSTEM AUTOMATIC TRANSMISSION ASSEMBLY BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA (+) DATA (-) SPLY VOLT DK BLU WIRE DK BLU/YEL WIRE DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/BRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LT GRN WIRE POWER STEERING CONTROL MODULE (LOWER LEFT SIDE OF DASH) POWER STEERING MOTOR POWER STEERING SHAFT TORQUE SENSOR RED/YEL WIRE SENS SIG SENS RTN STEERING ANGLE SENSOR (BASE OF STEERING COLUMN) SYSTEM TRANSMISSION CONTROL MODULE (TCM) 2.4L 3.6L TRANSMISSION OUTPUT SHAFT SPEED SENSOR W/ ADAPTIVE CRUISE CONTROL WHT WIRE WHT/DK BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 DATA (-) DATA (-) DATA (+) DATA (+) VOLT GND 1 2 GND BATTERY 2.4L 3.6L 2500 2500 2501 2501 COMPUTER DATA LINES 9 8 17 DATA + DATA - SPLY VOLT ANTI-LOCK BRAKES SYSTEM AUTOMATIC TRANSMISSION ASSEMBLY BATTERY FUSE BLOCK (TOP OF BATTERY) BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/BRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LT GRN WIRE POWER STEERING CONTROL MODULE (LOWER LEFT SIDE OF DASH) POWER STEERING MOTOR (ON STEERING GEAR) POWER STEERING SHAFT TORQUE SENSOR RED/YEL WIRE SENS SIG SENS RTN STEERING ANGLE SENSOR (BASE OF STEERING COLUMN) SYSTEM TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION OUTPUT SHAFT SPEED SENSOR W/ ADAPTIVE CRUISE CONTROL WHT WIRE WHT/DK BLU WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 BATTERY SOL CTRL 1 2 3 4 5 6 DATA (-) DATA (-) DATA (+) DATA (+) VOLT GND 2.4L 3.6L 9 8 17 DATA + DATA - SPLY VOLT ANTI-LOCK BRAKES SYSTEM AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN/GRN WIRE BRN/LT GRN WIRE COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/BRN WIRE HOT AT ALL TIMES IGN INSTRUMENT CLUSTER LOGIC POWER STEERING CONTROL MODULE (LOWER LEFT SIDE OF DASH) RED WIRE RED/DK BLU WIRE SERIAL DATA (-) SERIAL DATA (+) SHAFT SPEED SENSOR SOL LO REF STEERING ANGLE SENSOR (BASE OF STEERING COLUMN) SYSTEM TRANS- MISSION OUTPUT TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) W/ ADAPTIVE CRUISE CONTROL WHT WIRE WHT/DK BLU WIRE

1 2 NETWORK BUS 4 RR DOOR AJAR SW SIG 2 1 LR DOOR AJAR SW SIG NETWORK BUS 2500 2501 1492 7684 COMPUTER DATA LINES SYSTEM 4 6 NETWORK BUS 3 RF DOOR AJAR SW SIG 6 4 LF DOOR AJAR SW SIG NETWORK BUS 4 9 5 NETWORK BUS 2 BLK WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRAKE FLUID LEVEL SWITCH (ON BRAKE FLUID RESERVOIR) BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 5986 333 DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR (DRIVER'S DOOR) ELECTRONIC BRAKE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE GRY/VIO WIRE LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LIFT GATE AJAR SW SIG 1 LOGIC NETWORK BUS 2 PARK BRAKE CONTROL SWITCH PARK BRK RELEASE SW SIG PARK BRK SW SIG PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINER) PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) POWER DISTRIBUTION SYSTEM PRESS BRAKE REAR COMPARTMENT LID LATCH (IN TRUNK LID) RED/WHT WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RLY COIL CTRL SERIAL DATA BRK FLUID LVL TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO WIRE VIO/GRY WIRE VOL REF PARK BRK SW SIG WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE