Chevrolet Tahoe IV (2014-2021) underhood fuse block Wiring diagrams

5.3L, 6.2L 6.0L A/C COMPRESSOR CLUTCH RELAY A/C COMPRESSOR CLUTCH RLY CTRL A/C CONTROL FUSE A/C PRESS SENS 5 VOLT REF A/C REFRIGERANT PRESS SENS LO REF A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AMBIENT AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR B+ VOLT BATT+ VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOL FAN LT FUSE COOL FAN RT FUSE ENG COOLANT TEMP SENS SIG ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMPERATURE SENSOR GRN WIRE HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES LEFT COOLING FAN MOTOR LO REF RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT COOLING FAN MOTOR TCM/ECM FUSE UNDERHOOD FUSE BLOCK WHT WIRE WHT/GRY WIRE

5 VOLT REF 6.0L (VIN G) ACC VOLT ACC WAKEUP SERIAL DATA SERIAL DATA COMMUNICATION ENABLE AHA RVC FUSE AMBIENT LT SENS SIG ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, HEADLIGHTS SYSTEMS ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM CRUISE CONTROL SYSTEM AUTO WIPER ON SIG BATT POSITIVE VOLT BATT POSITIVE VOLTAGE BCM 1 FUSE BCM 2 FUSE BCM 3 FUSE BCM 4 FUSE BCM 5 FUSE BCM 8 FUSE BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CHALLENGE ACTIVE SIG CHILD LOCKOUT INDICATOR COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE CTRL SET/COAST/ RESUME/ACCELERATE SW SIG LO REF CURRENT SENS CTRL CURRENT SENS SIG DK BLU/VIO WIRE DOOR LOCK CTRL DOOR LOCKS, ANTI-THEFT SYSTEMS DRV DR LK SW LK SIG DRV DR LK SW UNLK EXCEPT 6.0L (VIN G) EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS GLOVE BOX DOOR RELEASE SIG GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HAZARD SW LT TURN SIG HAZARD SW RH TURN SIG HAZARD SW SIG HDLP DIMM SW HI BEAM SIG HDLP SW HDLPS OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LP SIG HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (+) (1) REMOTE FUNCTION ACTR RECEIVE SIG HI SPD GMLAN SERIAL DATA (-) (1) HILL DESCENT CTRL SW SIG HOOD AJAR SW SIG HORN SW SIG HORNS SYSTEM HOT AT ALL TIMES I/P LP DIM SW SIG I/P LP DIMM SW LOW REF IGN MODE SW ACC LED SIG IGN MODE SW MODE VOLT IGN MODE SW ST LED SIG IGNITION KEY RESISTOR SIG IND DIMMING CTRL INTERIOR LIGHTS SYSTEM 192 (OR 6841) INTR LP DEFEAT SW SIG LED AMBIENT LIGHTING CTRL 2 LED BACKLIGHT DIMM CTRL LEFT INSTRUMENT PANEL FUSE BLOCK LEFT REAR STP LP CTRL LIFT GLASS/TRUNK MOTOR CTRL LIN BUS 4 LT FRT DRL CTRL LT HDL LO BEAM SPL VOLT NETWORK BUS 5 ORG/ WIRE PARK BRAKE SW SIG POWER DISTRIBUTION SYSTEM RAP RELAY COIL CTRL REAR WINDOW WIPER SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REMOTE FUNCTION ACTR RTN REMOTE FUNCTION ACTR SUPLY VOLT REMOTE FUNCTION ACTR TRANS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR STP LP CTRL RR FOG LP SW SIG RR LICENSE LP SPLY VOL RT FRT TRN SIG LP CTRL RT HDL LO BEAM SPL VOLT RT RR TURN SIG LP CTRL RUN/CRANK IGN 1 VOLT RUN/CRANK RLY COIL CTRL SECURITY IND CTRL SENS LO REF SHIFT INTERLOCK SYSTEM SHIFT SELECT SW PERFORMANCE SIG STARTING/CHARGING SYSTEM STOP LAMP RLY COIL CTRL STOP LAMP SW SIG STRG COLUMN LK STATUS SIG SW SIG TAP UP/TAP DOWN SW SIG TRACTION CTRL SW SIG TRAILER BRK APPLY SIG TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM UNDERHOOD FUSE BLOCK VEH ANTI-THEFT SYS IMMOBILIZER RTRN LIN BUS 11 VEH ANTI-THEFT SYS IMMOBILIZER SPLY VOLT 12 VOLT REF VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RLY CTRL WINDSHIELD WASHER SW SIG WINDSHIELD WIPER MTR RLY COIL CTRL WINDSHIELD WIPER MTR PARK SW SIG WINDSHIELD WIPER SW HI SIG WINDSHIELD WPR SW LO SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE

5.3L, 6.2L 5.3L, 6.2L 6.0L 6.0L 6.0L 6.0L AHA RVC FUSE BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE BRN WIRE CHARGE IND CHARGE IND CTRL COMPUTER DATA LINES SYSTEM CURRENT SENS LOW REF CURRENT SENS SIG CURRENT SENS SPLY VOLT DRIVER INFORMATION CENTER DISPLAY ECM/TCM FUSE ENGINE CONTROL MODULE FUSE 2 GENERATOR GENERATOR FIELD DUTY CYCLE SIG GRN WIRE GRY WIRE GRY/VIO WIRE HI SPD GMLAN SRL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC IGN/ SDM IGN FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC MOST SERIAL DATA (+) POWER DISTRIBUTION SYSTEM RED WIRE RED/BRN WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE

12 VOLT REF 6.0L 6.2L, 5.3L 6.2L, 5.3L 6.0L APP 5 VOLT REF 2 APP SENS 5 VOLT REF 1 APP SENS LO REF 1 APP SENS LOW REF 2 APP SENS SIG (2) APP SENS SIG 1 BATT POS VOLT BCM 5 FUSE BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR (BEHIND BRAKE PEDAL ASSEMBLY) BRK APPLY SENS LO REF BRK APPLY SENS SIG BRK APPLY SENS SUPPLY VOLT BRK SENS LOW REF BRK SENS SIG BRK SENS SPLY VOLT BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM CRUISE CTRL SW SIG CRUISE GAP SW SIG CRUISE IND CRUISE/ETC/ TCC BRK SIG DISTANCE SENSING CRUISE CONTROL MODULE (LEFT SIDE BOTTOM OF FRONT FASCIA) DRIVER INFORMATION CENTER DISPLAY ECM IGN FUSE ENGINE CONTROL MODULE (LEFT OF ENGINE COMPT) GRN/WHT WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROL MODULE WAKE-UP RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPD GMLAN SERIAL DATA PRIME RELAY FUSE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGN 1 VOLT SERIAL DATA SERIAL DATA (-) (1) SERIAL DATA 2 SIG GND THR POS CTRL CLOSE THR POS CTRL OPEN THR POS SENS 5 VOLT REF THR POS SENS LOW REF TP SENS SIG UNDERHOOD FUSE BLOCK USB/OBS DET FUSE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DAMPING AIR PRESS SENS SIG DRIVER INFORMATION CENTER DISPLAY EXHAUST SOLENOID CTRL EXHAUST SOLENOID SPLY VOLT GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (-) 2 HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SUSPENSION POSITION SENSOR LF STRUT MOTOR DECREASE DAMP CTRL LF STRUT MOTOR INCREASE DAMP CTRL LF STRUT POS SENS 5 VOLT REF LF STRUT POS SENS LOW REF LF STRUT POS SENS SIG LOGIC LR STRUT MOTOR DECREASE DAMP CTRL LR STRUT MOTOR INCREASE DAMP CTRL LR STRUT POS SENS 5 VOLT REF LR STRUT POS SENS LOW REF LR STRUT POS SENS SIG RED/BLU WIRE RED/GRN WIRE RELAY COIL CTRL RF STRUT MOTOR DECREASE DAMP CTRL RF STRUT MOTOR INCREASE DAMP CTRL RF STRUT POS SENS 5 VOLT REF RF STRUT POS SENS LOW REF RF STRUT POS SENS SIG RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SUSPENSION POSITION SENSOR RR STRUT MOTOR DECREASE DAMP CTRL RR STRUT MOTOR INCREASE DAMP CTRL RR STRUT POS SENS 5 VOLT REF RR STRUT POS SENS LOW REF RR STRUT POS SENS SIG RTD FUSE SENS 5 VOLT REF SENS LOW REF SER DATA COMM ENABLE SERIAL DATA SUSP LEVELING CMPRSR FUSE SUSPENSION CONTROL MODULE (ABOVE SPARE TIRE) UNDERHOOD FUSE BLOCK VEHICLE LEVEL CONTROL COMPRESSOR RELAY VIO WIRE VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

APPLY SW SIG APPLY SW VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE COMM ENABLE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELEC PRK BRK FUSE GROUND GRY/GRN WIRE GRY/RED WIRE HI SPD GMLAN HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LOW SPEED GMLAN SERIAL DATA PARK BRAKE CONTROL MODULE PARK BRAKE CONTROL SWITCH PARK BRAKE SERVICE IND PARK BRAKE SW PARK IND RED WIRE RED/WHT WIRE RELEASE SW RELEASE SW SIG SUPPLY VOLTAGE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

AUXILIARY BATTERY AUXILIARY BATTERY FUSE BLOCK AUXILIARY BATTERY RELAY 1 AUXILIARY BATTERY RELAY 2 BLK WIRE BLU WIRE BODY CONTROL MODULE CONFIGURABLE PROVISION RELAY 1 CONFIGURABLE PROVISION RELAY 2 CONFIGURABLE PROVISION RELAY 3 CONFIGURABLE PROVISION RELAY 4 FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 10) FROM HEADLAMP HIGH BEAM RELAY (DIAGRAM 2 OF 10) FROM TRANS IGN FUSE (DIAGRAM 2 OF 10) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 10) FUSE 1 FUSE 2 GRN/GRY WIRE GRY/BLK WIRE INSTRUMENT PANEL JUNCTION BLOCK POLICE PROVISION (BLUNT CUT) RC UPFIT 1, 2 FUSE RC UPFIT 3, 4 FUSE REAR BODY FUSE BLOCK RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE TRANSFER CASE SHIFT CONTROL SWITCH UNDERHOOD FUSE BLOCK UPFIT 1 FUSE UPFIT 2 FUSE UPFIT 3 FUSE UPFIT 4 FUSE VBAT UPFIT 1, 2 FUSE VBAT UPFIT 3, 4 FUSE VIO/BRN WIRE W/ FULL FEATURE CENTER W/ FRONT COMPARTMENT CONSOLE WHT/BLU WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

5.3L, 6.2L 6 SPEED A/T 6.0L 6.0L 5.3L, 6.2L 8 SPEED A/T A/C COMPRESSOR CLUTCH RELAY A/C CONTRL FUSE ABS PUMP FUSE ABS VLV FUSE AERO SHUTTER FUSE AHA RVC FUSE ALC RUN/ CRANK FUSE AUXILIARY CHASSIS CONTROL MODULE BLK WIRE BODY CONTROL MODULE COOL FAN LT FUSE COOL FAN RT FUSE ECM IGN FUSE ECM/TCM FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY ENGINE CONTROLS MODULE WAKE-UP RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE FPPM FUSE FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 10) FRONT AXLE ENGAGEMENT ACTUATOR FRONT FOG LAMP RELAY FUEL PUMP DRIVER CONTROL MODULE FUEL PUMP FUSE FUEL PUMP RELAY GRN/VIO WIRE HEADLAMP HIGH BEAM RELAY HEADLAMP LOW BEAM RELAY HORN RELAY ICCM FUSE IGNITION MAIN RELAY INT HTR AUX FUSE LEFT COOLING FAN MOTOR LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY MISC IGN SPARE FUSE PARK LAMPS RELAY POLICE PROVISION (BLUNT CUT) REAR WINDOW WASHER PUMP RELAY RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COOLING FAN MOTOR RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY SEC FUEL PUMP FUSE SECONDARY FUEL PUMP RELAY STARTER RELAY STRTR FUSE TO AUXILIARY BATTERY RELAY 2 (DIAGRAM 10 OF 10) TO CONFIGURABLE PROVISION RELAY 4 (DIAGRAM 10 OF 10) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 10) TO LEFT INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 10) TO RC UPFIT 3, 4 FUSE (DIAGRAM 10 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 9 OF 10) TRAILER BACKUP LAMPS RELAY TRANS IGN FUSE TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK VEHICLE LEVEL CONTROL COMPRESSOR RELAY VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE W/ HID WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WPR FUSE

ALC EXH SOL FUSE ASSIST STEP CONTROL MODULE BCM 1 FUSE BODY CONTROL MODULE DRIVER SEAT HEATING, COOLING SWITCH ELEC PRK BRK FUSE ELEC RNG BDS FUSE EXCEPT POLICE FROM DLC/DSM FUSE (DIAGRAM 3 OF 10) GMC/ CHEVROLET HEAD-UP DISPLAY HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL JUNCTION BLOCK IPC FUSE LEFT EXTERIOR SPOT LAMP LEFT INSTRUMENT PANEL FUSE BLOCK LEFT SEAT BELT RETRACTOR MOTOR MODULE MSB DRVR FUSE MSB PASS FUSE NCA WIRE PARK BRAKE CONTROL MODULE PASSENGER SEAT HEATING, COOLING SWITCH POLICE POLICE UPFIT FUSE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT EXTERIOR SPOT LAMP RIGHT SEAT BELT RETRACTOR MOTOR MODULE RTD FUSE STEERING COLUMN LOCK MODULE STEERING COLUMN POSITION CONTROL MODULE SUSP LEVELING CMPRSR FUSE SUSPENSION CONTROL MODULE TRAILER BRAKE POWER CONTROL MODULE TRAILER CONNECTOR TRANSFER CASE CONTROL MODULE TRANSFER CASE MOTOR TRLR BATT FUSE TRLR BRK FUSE UNDERHOOD FUSE BLOCK VEHICLE LEVEL CONTROL COMPRESSOR RELAY VEHICLE LEVEL CONTROL SOLENOID VALVE AIR SUSPENSION COMPRESSOR W/ FLASHER HEADLAMP

5.3L, 6.2L 5.3L, 6.2L 6.0L 6 SPEED A/T 6.0L 8 SPEED A/T AUTOMATIC TRANSMISSION ASSEMBLY BCM 7 FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE PEDAL POSITION SENSOR COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA ECM FUSE ENGINE CONTROL MODULE GM LAN HI SPD SER GRN WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HI SPD SER DATA (-) 1 HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED IGN MODE IGNITION MODE SWITCH (W/ KEYLESS ACCESS) IGNITION SWITCH IMS MODE SW RETURN INSTRUMENT PANEL JUNCTION BLOCK KEY-IN IGNITION SWITCH LOW REF OFF OFF/ RUN/ CRANK/ VOLT P/N SIG PARK POSITION SWITCH PARK SOL SIG CTRL RED WIRE RELAY FUSED SPLY 1 RIGHT INSTRUMENT PANEL FUSE BLOCK RUN WIRE SEN SIG SEN SPLY VOLT STOP LAMP TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE W/ KEYLESS ACCESS W/O KEYLESS ACCESS WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/WHT WIRE