Chevrolet Tahoe V (2021-2024) nca 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 (+) 5 SERIAL DATA BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DAY NIGHT LED CONTROL DRIVER INFORMATION CENTER DISPLAY FORWARD COLLISION ALERT LED CONTROL GMC/ CHEVROLET GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT REAR SHORT RANGE RADAR SENSOR LOGIC NCA WIRE REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RIGHT FRONT SEAT LANE DEPARTURE WARNING ACTUATOR RIGHT REAR SHORT RANGE RADAR SENSOR WHT/GRY WIRE

1-BU AM/FM AM/FM RADIO ANTENNA AMPLIFIER AUDIO (-) CONTROL AUDIO SIG + AUTOSAR CAN BUS (-) 5 SER DATA AUXILIARY WIRELESS COMMUNICATION INTERFACE ANTENNA BACK DISPLAY BACKUP LAMP CONTROL ENTERTAINMENT REMOTE ENABLE SIG BACKWARD BATT POS VOLT BK COAX AM/FM BK LVDS BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE CHEVROLET COAX COAX BG WIFI COAX CU XM COAX OG ANTENNA RF SIG COMPUTER DATA LINES SYSTEM ETHERNET BUS 2 (-) ETHERNET BUS 4 (-) ETHERNET BUS 5 (-) ETHERNET BUS 6 (-) EXTERIOR LIGHTS SYSTEM SOUND SYSTEMS (VIDEO SYSTEM CIRCUIT) FORWARD/ GMC GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE GRY/YEL WIRE HOME HOT AT ALL TIMES LOGIC LVDS LVDS GY USB SER DATA MICROPHONE SIG NAVIGATION SYSTEM NCA WIRE RADIO (BEHIND RIGHT END OF DASH) RADIO ANTENNA RADIO CONTROL REAR VIEW DRIVER INFORMATION CAMERA RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) RIGHT FRONT MOBILE TELEPHONE MICROPHONE RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK SELECT SIG GND SOUND SYSTEMS (VIDEO SYSTEM CIRCUIT) VIO WIRE VIO/WHT WIRE VIO/YEL WIRE W/ ALL AROUND VISION CAMERA W/ FULL VIDEO DISPLAY W/ S-BAND AUDIO SYSTEM W/O ALL AROUND VISION CAMERA W/O FULL VIDEO DISPLAY XM RADIO ANTENNA

AM/FM AM/FM RADIO ANTENNA AMPLIFIER AUTOSAR CAN BUS (+) 5 SERIAL DATA AUXILIARY WIRELESS COMMUNICATION INTERFACE ANTENNA BACKUP LAMP CTRL BK COAX BK LVDS INFOTAINMENT DISPLAY SIGNAL BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE CHEVROLET COAX COAX BG COAX CU COMPUTER DATA LINES SYSTEM ENTERTAINMENT REMOTE ENABLE SIGNAL ETHERNET BUS 2 (-) ETHERNET BUS 4 (-) ETHERNET BUS 5 (-) ETHERNET BUS 6 (-) GMC GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE LEFT INSTRUMENT PANEL RADIO FRONT SPEAKER LEFT RADIO FRONT SIDE DOOR SPEAKER LF SPEAKER (-) CTRL 1 LR SPEAKER (+) CTRL LVDS LVDS GY USB SIGNAL NCA WIRE RADIO (BEHIND RIGHT END OF DASH) RADIO ANTENNA RF SPEAKER (-) CTRL 1 RIGHT INSTRUMENT PANEL RADIO FRONT SPEAKER RIGHT RADIO FRONT SIDE DOOR SPEAKER RIGHT RADIO REAR SIDE DOOR SPEAKER RR SPEAKER (+) CTRL SOUND SYSTEMS (VIDEO SYSTEM CIRCUIT) VIO WIRE VIO/WHT WIRE W/ S-BAND AUDIO SYSTEM WHT WIRE WIFI XM RADIO ANTENNA YEL WIRE YEL/BLK WIRE

3.0L TURBO DIESEL 6.2L, 5.3L BLK WIRE BLU WIRE CONTENT THEFT DETERRENT ALARM ENGINE CONTROL MODULE LEFT COOLING FAN MOTOR LEFT FRONT HEADLAMP LIGHTING CONTROL MODULE LOGIC LOWER COOLING FAN MOTOR NCA 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 COOLING FAN MOTOR RIGHT FRONT HEADLAMP TO IGNITION MAIN RELAY (DIAGRAM 8 OF 11) TO REAR BODY WIRING HARNESS JUNCTION BLOCK (DIAGRAM 6 OF 11) TO REAR BODY WIRING HARNESS JUNCTION BLOCK (DIAGRAM 7 OF 11) TO RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK (DIAGRAM 5 OF 11) TRAILER LAMP CONTROL MODULE TRANSFER CASE CONTROL MODULE

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

6.2L SUPERCHARGED 6.2L, 5.3L 3.0L TURBO DIESEL AUTOMATIC TRANSMISSION ASSEMBLY AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR BRK APPLY SENS CONTROL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POS SENS SIG BRN WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE CONTROLS VEHICLE SENSORS 5 VOLT REF 1 ETRS OUT OF PARK SWITCH 2 SIGNAL ETRS OUT OF PARK SWITCH SIGNAL GRN WIRE GRN/GRY WIRE GROUND HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES LOW REF NCA WIRE ORG/ WIRE PARK LOCK SOLENOID CONTROL RED/BLU WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK TRANSMISSION CONTROL MODULE TRANSMISSION HIGH SIDE DRIVER 2 SIGNAL TRANSMISSION PARK VALVE LOCK SOLENOID ACTUATOR TRANSMISSION PARK VALVE POSITION SWITCH TRANSMISSIONS SYSTEM VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE