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

3.0L 6.2L, 5.3L AUTOSAR CAN BUS (-) 2 SER DATA AUXILIARY TRANS FLUID PUMP CTRL BATTERY POSITIVE VOLT BLK/BRN WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE CHEVROLET/ GMC CLUTCH C CTRL CLUTCH D CTRL CLUTCH E CTRL CLUTCH SOL CTRL COMPUTER DATA LINES SYSTEM DEFAULT DISABLE SOL CTRL ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE CTRL MODULE GROUND ENGINE WIRING HARNESS JUNCTION BLOCK ETRS OUT OF PARK SW 2 SIG ETRS OUT OF PARK SW SIG ETRS SW ANALOG SIG 1 GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IN SPD SIG LIN BUS 1 OUT SPD SIG PARK INHIBIT SOL CTRL PRIVATE SERIAL DATA POWERTRAIN CAN BUS (+) SERIAL DATA RED/GRN WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RUN/CRANK IGNITION 1 VOLT TRANS CLUTCH F CTRL TRANS CLUTCH G CTRL TRANS CLUTCH H CTRL TRANS FLUID TEMP SENS LO REF TRANS FLUID TEMP SENS SIG TRANS HI SIDE DRIVER 1 CTRL TRANS HI SIDE DRIVER 2 CTRL TRANS IN SPD SENS SIG TRANS INTERMEDIATE SPD SIG TRANS LINE PRESS SOL CTRL TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP BLK WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CADILLAC CHEVROLET, GMC CAN BUS (-) 5 CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GEAR SHIFT CONTROL MODULE GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/ORG WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS SENSOR SUPPLY VOLTAGE RELAY ENERGIZED ILL INSTRUMENT PANEL CLUSTER CONTROL MODULE LOGIC MULTI-FUNCTION POWER SUPPLY CONVERTER NCA WIRE ORG/ WIRE POWER DISTRIBUTION SYSTEM RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK TRANSMISSION CONTROL SOLENOID VALVE 7 TRANSMISSION CONTROL SOLENOID VALVE 8 TRANSMISSION PARK VALVE LOCK SOLENOID ACTUATOR VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLU WIRE BLU/GRY WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN/GRY WIRE GRN/VIO WIRE GROUND GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT ELECTRONIC SUSPENSION WHEEL FRONT VERTICAL ACCELEROMETER LEFT ELECTRONIC SUSPENSION WHEEL REAR VERTICAL ACCELEROMETER LEFT FRONT SHOCK ABSORBER ACTUATOR CONTROL LH FRT ACCELERATION SENS LOW REF LH FRT ACCELERATION SENS SIG LH FRT ACCELERATION SENS VOLT REF LH FRT SHOCK ABSORBER ACTR CTRL LR ACCELERATION SENRS VOLT REF LR ACCELERATION SENS LOW REF LR ACCELERATION SENS SIG LR SHOCK ABSORBER ACTR CTRL NCA WIRE RED/GRN WIRE RH FRT ACCELERATION SENS LOW REF RH FRT ACCELERATION SENS SIG RH FRT ACCELERATION SENS VOLT REF RIGHT ELECTRONIC SUSPENSION WHEEL FRONT VERTICAL ACCELEROMETER RIGHT ELECTRONIC SUSPENSION WHEEL REAR VERTICAL ACCELEROMETER RR ACCELERATION SENS LOW REF RR ACCELERATION SENS SIG RR ACCELERATION SENS VOLT REF RR SHOCK ABSORBER ACTR CTRL RT FRT ABSORBER ACTUATOR CONTROL SUSPENSION CONTROL MODULE (ABOVE SPARE TIRE) VIO/RED WIRE WHT WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE

BATT POS VOLT BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE CADILLAC CHEVROLET, GMC CAN BUS (-) 5 CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/GRY WIRE GRN/VIO WIRE GROUND GRY/BLU WIRE GRY/WHT WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT REAR SHOCK ABSORBER ACTUATOR LOGIC NCA WIRE RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT REAR SHOCK ABSORBER ACTUATOR VIO/WHT WIRE

AIR SUSPENSION COMPRESSOR AUTOMATIC LEVEL CONTROL AIR COMPRESSOR AUTOMATIC LEVEL CONTROL MODULE AUTOMATIC LEVEL CONTROL SOLENOID VALVE BATT POS VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/RED WIRE BRN/WHT WIRE CADILLAC CHEVROLET, GMC CAN BUS (+) 1 CAN BUS (-) 5 CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GROUND GRY/BRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT SUSPENSION 4 CORNER LEVELING SYSTEM POSITION SENSOR LEFT REAR SUSPENSION 2/4 AIR LEVELING SYSTEM POSITION SENSOR LEVELING COMPRESSOR MOTOR LOW REF LF STRUT MOTOR DECREASE DAMP CTRL LH FRT POSITION SENS LOW REF LH FRT POSITION SENS SIG LH FRT POSITION SENS VOLT REF LH RR POSITION SENS LOW REF LH RR POSITION SENS SIG LH RR POSITION SENS VOLT REF LOGIC NCA WIRE RED/BLU WIRE RED/BRN WIRE RH FRT POSITION SENS LOW REF RH FRT POSITION SENS SIG RH FRT POSITION SENS VOLT REF RH RR POSITION SENS LOW REF RH RR POSITION SENS SIG RH RR POSITION SENS VOLT REF RIGHT FRONT SUSPENSION 4 CORNER LEVELING SYSTEM POSITION SENSOR RIGHT REAR SUSPENSION 2/4 AIR LEVELING SYSTEM POSITION SENSOR VEHICLE LEVEL CONTROL EXHAUST SOLENOID VALVE CONTROL VEHICLE LEVEL CONTROL EXHAUST SOLENOID VALVE CONTROL CAN BUS (+) 1 VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

AMBIENT LIGHT SENSOR SIGNAL AUTO BATT POS VOLT BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BODY CONTROL MODULE LIN BUS 6 COMPUTER DATA LINES SYSTEM DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY DRL IND ENGINE WIRING HARNESS JUNCTION BLOCK FOG LAMP IND FRONT FOG LAMP SWITCH GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE HEAD HEADLAMP SWITCH HEADLAMP SWITCH FLASH SIGNAL HEADLAMP SWITCH OFF SIGNAL HEADLAMP SWITCH ON SIGNAL HEADLAMP SWITCH REFERENCE HEADLAMP SWITCH SIGNAL HIGH BEAM LAMP IND HIGH BEAM SELECT SWITCH HIGH BEAM SIGNAL HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LIN BUS 1 LOGIC OFF PARK REAR FOG LAMP SWITCH RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SENSOR LOW REFERENCE TURN SIGNAL SWITCH WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE

BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/GRN WIRE CAN BUS (+) 1 CAN BUS (+) 2 COLUMN LOCK MODULE (TOP OF STEERING COLUMN) COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GROUND GRY WIRE GRY/BLK WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN VOLT LEFT REAR DOOR LOCK SWITCH LOCK LOGIC RED/GRY WIRE RIGHT REAR DOOR LOCK SWITCH UN LOCK VIO WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/WHT WIRE WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE COMPUTER DATA LINES SYSTEM CONTENT THEFT DETERRENT ALARM CONTENT THEFT DETERRENT SENSOR DOOR LOCK STATUS INDICATOR DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GARAGE DOOR OPENER TRANSMITTER GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LIN BUS 1 LOGIC NCA WIRE RED/YEL WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK ROOF CONSOLE SECURITY IND

AUTOSAR CAN BATTERY BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN/ORG WIRE BRN/WHT WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM DETECT OFF SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK GRY/ORG WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT FRONT DOOR AIR BAG SIDE IMPACT SENSOR LEFT REAR DOOR AIR BAG SIDE IMPACT SENSOR NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/GRY WIRE ORG/WHT WIRE PASSENGER RESTRAINTS OCCUPANT CLASSIFICATION SYSTEM MODULE PASSENGER SEAT BELT TENSION SENSOR REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT END OF DASH) RIGHT FRONT DOOR AIR BAG SIDE IMPACT SENSOR RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RIGHT REAR DOOR AIR BAG SIDE IMPACT SENSOR SIG GND SW LOW REF SW SIG VEHICLE STABILITY CONTROL SYSTEM SWITCH VIO/WHT WIRE WHT WIRE WHT/ORG WIRE

3.0L 6.2L 6.2L, 5.3L BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE CAN-BUS CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK FRONT DRIVE AXLE ACTUATOR FRT AXLE ACTR CTRL GEAR POS SENS LOW REF GRN WIRE GROUND GRY/BLK WIRE HOT AT ALL TIMES HOT W/ FRONT DRIVE AXLE ACTUATOR RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED INCREMENTAL ENCODER DIR SIG INCREMENTAL ENCODER IMPULSE SIG INCREMENTAL ENCODER SENS LOW REF J113 (3.0L) J157 (6.2L, 5.3L) LOGIC NCA WIRE RED/GRY WIRE ROTARY POS SENS SIG RUN/CRANK IGNITION 1 VOLT SECONDARY AXLE MOTOR RELAY CTRL TRANSFER CASE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) TRANSFER CASE LOCK SOL VLV CTRL TRANSFER CASE LOCK SOLENOID CTRL 2 TRANSFER CASE LOCK SOLENOID LOW REF TRANSFER CASE MTR TRANSFER CASE MTR CLOCKWISE CTRL TRANSFER CASE MTR LOW REF VIO WIRE VIO/BLK WIRE VIO/GRY WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE