Chevrolet Tahoe IV (2014-2021) nca Wiring diagrams

ABS PUMP FUSE ABS VLV FUSE BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SENSOR SIG BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE MODULATOR BRAKE VACUUM SENSOR 5 VOLT REF BRAKE VACUUM SENSOR LOW REF BRAKE VACUUM SENSOR SIG CMBD VHCE IN SENSOR SPLY VOLT COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE (NEAR LEFT SIDE OF TRANSMISSION) GMLAN GRN/BRN WIRE GRN/GRY WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL JUNCTION BLOCK IPC IGN/ SDM IGN FUSE LEFT FRONT WHEEL SPEED SENSOR LEFT INSTRUMENT PANEL FUSE BLOCK LEFT REAR WHEEL SPEED SENSOR LF FRONT WHEEL SPD SENSOR SIG LF WHEEL SPD SENSOR CTRL LR WHEEL SPD SENSOR SIG LR WHL SPD SENSOR CTRL NCA WIRE POLICE PROVISION (BLUNT CUT) POWER DISTRIBUTION SYSTEM RED/VIO WIRE RED/YEL WIRE RF WHEEL SPD SENSOR CTRL RF WHEEL SPD SENSOR SIG RR WHEEL SPD SENSOR SIG RR WHL SPD SENSOR CTRL SENSOR SERIAL DATA COMM ENABLE SPLY VOLT STEERING ANGLE SENSOR LOW REF STEERING WHEEL ANGLE SENSOR (BASE OF STEERING COLUMN) UNDERHOOD FUSE BLOCK VEHICLE SPEED SIG VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

5 VOLT REF 6.0L 6.2L, 5.3L ABS IND. ABS/TCS HILL DESCENT CTRL SW SIG BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENSOR CTRL BRAKE APPLY SENSOR LOW REF BRAKE APPLY SENSOR SIG BRAKE BOOSTER VACUUM SENSOR BRAKE IND BRAKE PEDAL POSITION SENSOR BRN/WHT WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM DISABLE SIG DISABLE SW SIG DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT OF ENGINE COMPT) ESC IND ESC OFF IND GMLAN DATA - (1) GMLAN SERIAL DATA GRN WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HI SPD GMLAN SERIAL DATA (-) (1) HILL DESCENT CONTROL SWITCH HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LOGIC LOGIC ASSIST STEP CONTROL MODULE NCA WIRE PARK BRAKE SWITCH PARKING ASSIST CONTROL MODULE PRK BRK SW SIG RED WIRE RED/GRN WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR WHEEL SPEED SENSOR RSE FUSE SENS LOW REF SERIAL DATA 2 STOP LAMP SW SIG TRACTION CONTROL OFF IND TRACTION CONTROL OFF SWITCH TRACTION SW SIG 1 VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

ACC WAKEUP SER DATA AUTOMATIC TRANSMISSION ASSEMBLY B+ 5 6 GND BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA DRIVER INFORMATION CENTER DISPLAY ECM/TCM FUSE ENGINE CONTROL MODULE (LEFT OF ENGINE COMPT) GMLAN SERIAL DATA - 1 GRN WIRE GRY WIRE GRY/VIO WIRE HI SPD GMLAN SERIAL DATA BUS (+) 1 HI SPD GMLAN SERIAL DATA BUS (-) 1 IGNITION 1 VOLTAGE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC NCA WIRE O/P SPD HI INPUT SIG O/P SPD HIGH INPUT SIG OUT OF PARK SIG P/N PARK/NEUTRAL SIG PARK/NEUTRAL SIG (1) PC 1 SOLENOID PC 2 SOLENOID PC 3 SOLENOID PC 4 SOLENOID PC 5 SOLENOID POWER DISTRIBUTION SYSTEM PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 PRK ENBL/EAP FUSE RED WIRE RED/GRN WIRE SEATS SYSTEM SHIFT SELECT SW PERFORMANCE SIG SHIFT SOLENOID VALVE 1 SHIFT SOLENOID VALVE 2 SIG A SIG B SIG C SIG P SS 1 SS 2 TAP UP/TAP DOWN SW SIG TCC SOLENOID TFP 1 TFP 3 TFP 4 TFP 5 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TOW/HAUL MODE SWITCH TRANS IGN FUSE TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION MANUAL SHIFT SWITCH UP/DOWN TRANSMISSION SHIFT LEVER TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION PARK POSITION RELAY UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLK WIRE

AM/FM AUX AUDIO COMMON SIG AUX AUDIO SCREEN (2) AUX DETECTION SIG BATT POS VOLT BK AM/FM BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN/BLU WIRE COAX COMPUTER DATA LINES SYSTEM CU HD/XM FM/RFR GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LF SPEAKER (+) (1) LH AUX AUDIO SIG (2) LR SPEAKER (+) MOST CONTROL MOST SERIAL DATA (+) NCA WIRE NETWORK BUS 10 RADIO RED/VIO WIRE REMOTE CONTROL DOOR LOCK RECEIVER RF SPEAKER (+) (1) RFR RH AUX AUDIO SIG (2) RIGHT QUARTER WINDOW ANTENNA RR SPEAKER (+) VIO WIRE VOICE LO REF VOICE SIG W/O FULL FEATURE CENTER WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE CHEVROLET GMC W/ LUXURY EDITION PACKAGE W/O LUXURY EDITION PACKAGE COMPUTER DATA LINES SYSTEM DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY GMC GMLAN GRN WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT EXTERIOR SPOT LAMP LEFT FRONT PARK LAMP LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE LEFT INSTRUMENT PANEL FUSE BLOCK LEFT PARK DAYTIME RUNNING LAMP LEFT TURN IND LO SPD LOGIC NCA WIRE PARK LAMP IND POSITIVE RED WIRE RED/GRY WIRE RED/VIO WIRE RIGHT EXTERIOR SPOT LAMP RIGHT TURN IND SER SIG ND VIO/GRY WIRE VOLT YEL WIRE

AUXILIARY HVAC CONTROLS BLK WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS DATA LINK CONNECTOR DRIVER SEAT HEATING, COOLING SWITCH FORWARD ADJUSTABLE PEDAL RELAY GMC/ CHEVROLET HEADLAMP SWITCH HEADUP DISPLAY HEADUP DISPLAY SWITCH HVAC CONTROL MODULE IGNITION MAIN RELAY IGNITION MODE SWITCH INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LEFT FRONT FLOOR ACCENT LAMP LEFT INSTRUMENT PANEL FUSE BLOCK NCA WIRE PARK BRAKE CONTROL SWITCH PARK POSITION SWITCH PASSENGER SEAT HEATING, COOLING SWITCH REARWARD ADJUSTABLE PEDAL RELAY RETAINED ACCESSORY POWER RELAY 1 SERIAL DATA GATEWAY MODULE STEERING COLUMN POSITION CONTROL MODULE STEERING WHEEL ANGLE SENSOR TOW/HAUL MODE SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR TURN SIGNAL/ MULTI-FUNCTION SWITCH UP/DOWN TRANSMISSION MANUAL SHIFT SWITCH W/ FRONT COMPARTMENT FLOOR CUSTOM CONSOLE W/ FRONT COOLING, HEATING SEATS WHT WIRE WINDSHIELD WIPER MOTOR

BLK WIRE BLU WIRE DRIVER BACK SEAT BLOWER ASSEMBLY DRIVER BACK SEAT HEATING ELEMENT DRIVER CUSHION SEAT BLOWER ASSEMBLY DRIVER CUSHION SEAT HEATING ELEMENT DRIVER DOOR ACCENT LAMP DRIVER DOOR HANDLE ACCENT LAMP DRIVER DOOR HANDLE FLOOD LAMP DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRIVER DOOR SILL PLATE LAMP DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE COURTESY LAMP DRIVER EXTERIOR DOOR HANDLE SWITCH DRIVER LEFT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER OUTSIDE REAR VIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER RIGHT REAR SEAT HAPTIC MOVEMENT MOTOR DRIVER SEAT ACCENT LAMP DRIVER SEAT BOLSTER MEMORY CONTROL MODULE DRIVER SEAT LUMBAR/ BOLSTER PUMP DRIVER SEAT MEMORY CONTROL MODULE DRIVER SEAT SWITCH ADJUSTER DRIVER SIDE OBJECT DETECTION INDICATOR DRIVER WINDOW MOTOR DRIVER WINDOW SWITCH GMC/ CHEVROLET LEFT REAR COMPARTMENT POWER RECEPTACLE LEFT REAR CUSHION HEATED SEAT ELEMENT LEFT REAR DOOR ACCENT LAMP LEFT REAR DOOR HANDLE ACCENT LAMP LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR DOOR POCKET FLOOD LAMP LEFT REAR DOOR SILL PLATE LAMP LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE COURTESY LAMP LEFT REAR EXTERIOR DOOR HANDLE SWITCH LEFT REAR WINDOW SWITCH LEFT SEAT BELT RETRACTOR MOTOR MODULE LEFT TURN SIGNAL REPEATER LAMP LIFTGATE WINDOW UNLATCH RELAY NCA WIRE OUTSIDE REAR VIEW MIRROR HEATER RELAY OUTSIDE REAR VIEW MIRROR SWITCH POWER SOUNDER CONTENT THEFT DETERRENT ALARM MODULE REAR BODY FUSE BLOCK REAR DEFOGGER RELAY REAR SEAT HEATING CONTROL MODULE RED WIRE W/ FRONT SEAT HEATER, COOLING W/ HEATED MIRROR W/ MEMORY W/O MEMORY W/ POWER FOLD WHT WIRE

5.3L, 6.2L 6.0L ACTUATOR CTRL ACTUATOR LOW REF ACTUATOR RECEIVE SIG ACTUATOR TRANSMIT SIG B+ VOLT BATT POS VOLT BCM 5 FUSE BEAM RELAY CTRL BLK WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONTENT THEFT DETERRENT SENSOR MODULE DATA BUS 1 DOOR LOCK CTRL ENGINE CONTROL MODULE GLBX FUSE GLOVE BOX DOOR GLOVE BOX DOOR RELEASE SIG GLOVE BOX) GRN/BRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD HOOD AJAR SW SIG HOOD AJAR SWITCH HOOD AJAR SWITCH (INTEGRAL TO HOOD LATCH) HORN RELAY CTRL HORNS SYSTEM HOT AT ALL TIMES IND DIMMING CTRL INSTRUMENT PANEL COMPARTMENT DOOR UNLATCH ACTUATOR INSTRUMENT PANEL COMPARTMENT DOOR UNLATCH ACTUATOR RELAY INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LEFT INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA LOCK SIGNAL LOGIC NCA WIRE OVERHEAD CONSOLE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RELEASE SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RSE FUSE SECURITY IND CTRL SERIAL DATA (-) (1) SW DISABLE SIG SW LED CTRL SW SIG ULTRASONIC INTRUSION SENSOR 1 ULTRASONIC INTRUSION SENSOR 2 ULTRASONIC INTRUSION SENSOR 3 UNLOCK SIGNAL VIO/BLK WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

BATT POS VOLT BLK WIRE BLU/VIO WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR LOCK SWITCH GLBX FUSE GLOVE BOX DOOR GLOVE BOX) GMLAN SER DATA GRN WIRE GRN/VIO WIRE GRN/WHT WIRE HOT AT ALL TIMES INSTRUMENT PANEL COMPARTMENT DOOR UNLATCH ACTUATOR INSTRUMENT PANEL COMPARTMENT DOOR UNLATCH ACTUATOR RELAY INSTRUMENT PANEL JUNCTION BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LOCK SIG LOCK STATUS SIG LOGIC NCA WIRE OFF/ACC VOLT RED/GRN WIRE RED/GRY WIRE RELEASE SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RSE FUSE STEERING COLUMN LOCK MODULE (STEERING COLUMN) VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

BCM 3 FUSE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRAKE IND BRK FLUID LVL SENS SIG COMPUTER DATA LINES SYSTEM DLIS FUSE DRIVER SEAT BELT IND DRIVER SEAT BELT SW SIG DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE ELECTRONIC BRAKE CONTROL MODULE (NEAR LEFT SIDE OF TRANSMISSION) GMLAN SERIAL DATA - 1 GRN/GRY WIRE GRY/VIO WIRE HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INFO/ AIR BAG FUSE INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC IGN/SDM IGN FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LO REF LOGIC MOST CTRL NCA WIRE ORG/BRN WIRE ORG/VIO WIRE PARK BRAKE IND PASSENGER SEAT BELT IND PASSENGER SEAT BELT SW SIG PASSENGER SEAT BELT SWITCH PASSENGER SEAT BELT BUCKLE POWER DISTRIBUTION SYSTEM RADIO RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA SIG GND TIRE PRESSURE IND VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/VIO WIRE