Chevrolet Tahoe V (2021-2024) engine wiring harness junction block Wiring diagrams

3.0L TURBO DIESEL 3.0L TURBO DIESEL 6.2L, 5.3L CADILLAC GMC, CHEVROLET 6.2L SUPERCHARGED 6.2L, 5.3L ACTIVE GRILLE AIR SHUTTER ACTUATOR (BEHIND FRONT GRILLE) ACTIVE GRILLE AIR SHUTTER ACTUATOR 2 (CADILLAC) (BEHIND FRONT GRILLE) ACTIVE GRILLE AIR SHUTTER ACTUATOR 2 (GMC, CHEVROLET) (BEHIND FRONT GRILLE) BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE CONTROL MODULE LIN BUS 1 ENGINE WIRING HARNESS JUNCTION BLOCK GMC/ CHEVROLET GRN/VIO WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE LOGIC NCA WIRE PRIVATE SERIAL DATA POWERTRAIN CAN BUS (+) SERIAL DATA PRIVATE SERIAL DATA POWERTRAIN CAN BUS (+) SERIAL DATA ENGINE CONTROL MODULE GND RED/BRN WIRE RED/WHT WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK VIO/BLU WIRE WHT WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRAKE FLUID LEVEL INDICATOR SWITCH BRAKE FLUID LEVEL SIGNAL BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE BRN/BLU WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE LIN BUS 1 ELECTRONIC BRAKE CONTROL MODULE LIN BUS 2 ENGINE WIRING HARNESS JUNCTION BLOCK FRONT BRAKE PAD WEAR SENSOR SIGNAL GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT FRONT WHEEL SPEED SENSOR LEFT FRONT WHEEL SPEED SENSOR CONTROL LEFT FRONT WHEEL SPEED SENSOR SIGNAL LEFT PARK BRAKE MOTOR APPLY CONTROL LEFT PARK BRAKE MOTOR LOW REFERENCE LEFT PARKING BRAKE ACTUATOR LEFT REAR WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR CONTROL LEFT REAR WHEEL SPEED SENSOR SIGNAL NCA WIRE REAR BRAKE PAD WEAR SENSOR SIGNAL RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT FRONT WHEEL SPEED SENSOR CONTROL RIGHT FRONT WHEEL SPEED SENSOR SIGNAL RIGHT PARK BRAKE MOTOR APPLY CONTROL RIGHT PARK BRAKE MOTOR LOW REFERENCE RIGHT PARKING BRAKE ACTUATOR RIGHT REAR WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR CONTROL RIGHT REAR WHEEL SPEED SENSOR SIGNAL RUN/CRANK IGNITION 1 VOLTAGE TRAILER ABS CIRCUIT TRAILER BRAKE APPLY SIGNAL TRAILER BRAKE ENABLE SIGNAL VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

3.0L TURBO DIESEL 5.3L, 6.2L 6.2L ABS IND. AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLTAGE BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRAKE APPLY SENSOR CTRL BRAKE APPLY SENSOR LOW REF BRAKE APPLY SENSOR SIGNAL BRAKE IND BRAKE PEDAL POSITION SENSOR BRAKE POSITION SENSOR SIGNAL BRN/BLU WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRIC PARK BRAKE IND ENGINE CONTROL MODULE (CADILLAC) (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROL MODULE (CHEVROLET, GMC) (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROL MODULE LIN BUS 1 ENGINE CONTROL MODULE LIN BUS 2 ENGINE CONTROL SENSORS 5 VOLT REFERENCE 1 ENGINE CTRL MODULE LIN BUS 1 ENGINE CTRL MODULE LIN BUS 2 ENGINE CTRL SENSORS LOW REFERENCE 1 ENGINE WIRING HARNESS JUNCTION BLOCK GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE J167 (3.0L TURBO) J171 (6.2L, 6.2L SUPERCHARGED) J180 (3.0L TURBO DIESEL) J150 (6.2L, 5.3L) J187 (3.0L TURBO DIESEL) J151 (6.2L, 5.3L) LEFT FRONT DISC BRAKE PAD WEAR SENSOR LEFT REAR DISC BRAKE PAD WEAR SENSOR LOGIC MULTI-FUNCTION POWER SUPPLY CONVERTER NCA WIRE PARK BRAKE IND PARKING BRAKE CONTROL SWITCH POWER DISTRIBUTION SYSTEM RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK TRACTION CONTROL SWITCH TRACTION CONTROL SWITCH SIGNAL 1 VEHICLE STABILITY CONTROL SYSTEM SWITCH VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 4 SERIAL DATA AUTOSAR CAN BUS (+) 8 SERIAL DATA BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE CADILLAC 6.2L SUPERCHARGED COMPUTER DATA LINES SYSTEM DRIVER SEAT ADJUSTER MEMORY MODULE (UNDER DRIVER SEAT) DRIVER SEAT LEFT REAR HAPTIC MOVEMENT MOTOR CONTROL DRIVER SEAT RIGHT REAR HAPTIC MOVEMENT MOTOR CONTROL ENGINE WIRING HARNESS JUNCTION BLOCK FORWARD COLLISION ALERT DISPLAY (W/O HEAD-UP DISPLAY) GMC/ CHEVROLET GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IMAGE PROCESSING MODULE LEFT FRONT SEAT LANE DEPARTURE WARNING ACTUATOR LOGIC LONG RANGE FORWARD RANGE RADAR SENSOR NCA WIRE REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE SIGNAL GROUND VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL/BRN WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 1 SERIAL DATA (PINS: 11 TO 15 NOT USED) AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 8 SERIAL DATA BATTERY POSITIVE VOLTAGE (PINS: 6 TO 8 NOT USED) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK ETHERNET BUS 11 (-) GMC/ CHEVROLET GRN WIRE GRN/GRY WIRE HOT AT ALL TIMES IMAGE PROCESSING MODULE IMAGE PROCESSING MODULE LIN BUS 1 (PINS: 24 TO 26 NOT USED) INERTIAL SENSOR SUPPLY VOLTAGE LEFT FRONT SHORT RANGE RADAR SENSOR LEFT SHORT RANGE RADAR REAR SENSOR PRIVATE SERIAL DATA ACTIVE SAFETY CAN BUS (-) SERIAL DATA REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RED/WHT WIRE RIGHT FRONT SHORT RANGE RADAR SENSOR RIGHT SHORT RANGE RADAR REAR SENSOR SIG GND (PINS: 20 TO 22 NOT USED) VEHICLE DYNAMICS SENSOR (UNDER CENTER CONSOLE) VIO/GRY WIRE WHT WIRE WHT/GRY WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DAY NIGHT LED CONTROL DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK FORWARD COLLISION ALERT DISPLAY (W/O HEAD-UP DISPLAY) FORWARD COLLISION ALERT LED CONTROL GMC/ CHEVROLET GRY/BLK WIRE GRY/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT SHORT RANGE RADAR REAR SIDE SENSOR (INSIDE LEFT CORNER OF REAR FASCIA) LOGIC RED/GRN WIRE RIGHT SHORT RANGE RADAR REAR SIDE SENSOR VIO/WHT WIRE WHT/GRY WIRE

3.0L TURBO DIESEL 6.2L, 5.3L AIR CONDITIONING COMPRESSOR RELAY AUTOMATIC LEVEL CONTROL MODULE AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP BLUNT CUT) BRAKE SYSTEM CONTROL MODULE BRAKE MASTER CYLINDER ENGINE CONTROLS IGNITION RELAY ENGINE CONTROLS SENSOR SUPPLY VOLTAGE RELAY ENGINE RESTART RELAY ENGINE WIRING HARNESS JUNCTION BLOCK EVAPORATIVE EMISSION CANISTER VENT SOLENOID VALVE FROM BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK (DIAGRAM 1 OF 11) FRONT DRIVE AXLE ACTUATOR RELAY FUEL HEATER RELAY FUEL PUMP POWER CONTROL MODULE GRN WIRE GRN/VIO WIRE HEATER COOLANT PUMP HORN RELAY LEFT FRONT SHORT RANGE RADAR SENSOR LEFT TRAILER STOP/ TURN SIGNAL LAMP RELAY LONG RANGE FORWARD RANGE RADAR SENSOR NCA WIRE REAR WINDOW WASHER PUMP RELAY RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REDUCTANT CONTROL MODULE RIGHT FRONT SHORT RANGE RADAR SENSOR RIGHT TRAILER STOP/ TURN SIGNAL LAMP RELAY RUNNING BOARD CONTROL MODULE STARTER RELAY SUSPENSION CONTROL MODULE TOW VEHICLE ELECTRICAL RECEPTACLE TRAILER BACKUP LAMP RELAY TRAILER BRAKE CONTROL MODULE TRAILER BRAKES PROVISION TRAILER LAMP CONTROL MODULE TRAILER PARKING LAMP RELAY W/ INTEGRATED BRAKE ASSIST W/ INTEGRATED TRAILER BRAKE CONTROL W/O INTEGRATED BRAKE ASSIST W/O INTEGRATED TRAILER BRAKE CONTROL WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER MOTOR RELAY WINDSHIELD WIPER MOTOR SPEED CONTROL RELAY

3.0L TURBO DIESEL 6.2L, 5.3L AIR HEATER BLU/VIO WIRE BLUNT CUT) BODY CONTROL MODULE BRAKE SYSTEM CONTROL MODULE BRAKE MASTER CYLINDER BRN WIRE CHASSIS CONTROL MODULE COLUMN LOCK MODULE DRIVER FRONT SEAT BACK VENTILATION BLOWER DRIVER FRONT SEAT CUSHION VENTILATION BLOWER ENGINE CONTROL MODULE ENGINE WIRING HARNESS JUNCTION BLOCK EXCEPT POLICE FORWARD COLLISION ALERT DISPLAY FRONT SEAT/ CENTER CONSOLE GEAR SHIFT CONTROL MODULE GRN/VIO WIRE IGNITION MAIN RELAY INSIDE REAR VIEW MIRROR INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT REAR CARGO TRIM LIGHTING CONTROL MODULE NCA WIRE PASSENGER FRONT SEAT BACK VENTILATION BLOWER PASSENGER FRONT SEAT CUSHION VENTILATION BLOWER POLICE REDUCTANT CONTROL MODULE RESTRAINTS CONTROL MODULE SERIAL DATA GATEWAY MODULE TO ACCESSORY AC, DC POWER CONTROL MODULE RELAY (DIAGRAM 9 OF 11) TO DC/AC CONVERTER CONTROL MODULE (DIAGRAM 9 OF 11) TRAILER LAMP CONTROL MODULE TRANSFER CASE CONTROL MODULE TRANSMISSION CONTROL MODULE VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEMS ELECTRONIC BRAKE CTRL MODULE LIN BUS 2 ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLU WIRE GROUND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LOGIC POWER DISTRIBUTION SYSTEM RED/VIO WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RUN/CRANK IGNITION 1 VOLTAGE TRAILER AUXILIARY CTRL TRAILER BRAKE APPLY SIG TRAILER BRAKE APPLY SIGNAL TRAILER BRAKE CONTROL MODULE TRAILER BRAKE CONTROL SWITCH TRAILER BRAKE ENABLE SIG TRAILER BRAKE ENABLE SIGNAL VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL/BLK WIRE

A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION SENSOR BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CHARGE AIR COOLER COOLANT PUMP ENGINE CONTROLS IGNITION RELAY ENGINE WIRING HARNESS JUNCTION BLOCK EXHAUST PRESSURE REGULATOR VALVE GMC/ CHEVROLET GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED MASS AIR FLOW SENSOR RED/BRN WIRE RED/GRN WIRE TO FUEL HEATER RELAY (DIAGRAM 7 OF 9) VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE