Chevrolet Tahoe V (2021-2024) computer data lines system Wiring diagrams

ACCESSORY AC, DC POWER CONTROL MODULE RELAY BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DC/AC CONVERTER CONTROL MODULE DC/AC INVERTER CTRL DC/AC INVERTER CTRL 2 DC/AC INVERTER RLY CTRL FROM IGNITION MAIN RELAY (DIAGRAM 8 OF 11) GRN/BLU WIRE GRN/BRN WIRE GROUND HIGH REF LIN BUS 2 LOGIC LOW REF NCA WIRE RED WIRE RED/WHT WIRE RUN/CRANK IGN 1 VOL VIO/RED WIRE VIO/WHT WIRE WHT/GRN WIRE YEL WIRE

A/C COMPRESSOR CLU RLY CTRL A/C REFRIGERANT PRESSURE SENS SIG ACCELERATOR PEDAL POS LOW REF 1 ACCELERATOR PEDAL POS LOW REF 2 ACCELERATOR PEDAL POS SIG 2 AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 3 SERIAL DATA BATT POSITIVE VOLT BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRK POS SENS SIG BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE CAN BUS (-) SERIAL DATA COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE POS SIG COOLANT FLOW CTRL VALVE POS SIG COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG EH GAS RECIRCULATION VALVE HIGH CTRL EH GAS RECIRCULATION VALVE LOW CTRL ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE CTRL MODULE GND ENGINE CTRL SENSORS LOW REF 2 ENGINE CTRL VEHICLE SENS LOW REF 1 EXHAUST FLOW CTRL VALVE 1 EXHAUST GAS RECIRCULATION POS SIG GLOW PLUG 2 CTRL GLOW PLUG 3 CTRL GLOW PLUG 5 CTRL GLOW PLUG 4 CTRL ENGINE CTRL VEHICLE SENS 5 VOLT REF 1 GLOW PLUG 6 GLOW PLUG 6 CTRL GLOW PLUG CTRL GMC/ CHEVROLET GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOOD STATUS A SIG HOT AT ALL TIMES INTAKE MANIFOLD RUNNER VALVE ACTUATOR CTRL LOGIC MASS AIR FLOW SENS SIG OIL PRESSURE SENS SIG CRANKCASE DIFFERENTIAL PRESSURE SENS SIG POS SENS MTR CLOSE CTRL POS SENS MTR OPEN CTRL POWERTRAIN RLY COIL CTRL POWERTRAIN SENS BUS RLY CTRL PVT SER DATA POWERTRAIN CAN BUS (+) SER DATA AUTOSAR CAN BUS (+) 3 SERIAL DATA RADIO CONTROL RED/BRN WIRE RUN/CRANK IGNITION 1 VOLTAGE STARTER ENABLE RLY CTRL STARTING/CHARGING SYSTEM TURBOCHARGER VANE POSI SENS SIG TURBOCHARGER VANE POSITION ACTUATOR VIO/BLK WIRE VIO/GRN WIRE VIO/YEL WIRE WAIT TO START IND WAIT TO START IND CTRL WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE

ACCELERATOR PEDAL POSI SIG 1 AMBIENT AIR TEMP SENS SIG BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT FLOW CTRL ACTR CTRL CLOSE COOLANT FLOW CTRL ACTR CTRL OPEN COOLANT TEMP SENS 2 SIG COOLING DFI HI VOLT SPLY CYL 1 DFI HI VOLT SPLY CYL 2 DFI HI VOLT SPLY CYL 5 DFI HI VOLT SPLY CYL 6 DIFFERENTIAL PRESSURE SIG 1 EH GAS RECIRCULATION EH PRESSURE SENS 1 SIG ENGINE BLOCK COOLANT TEMP SIG ENGINE CONTROL MODULE ENGINE CTRL MODULE LIN BUS 1 ENGINE CTRL MODULE LIN BUS 2 ENGINE CTRL MODULE LIN BUS 3 ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF 1 ENGINE METAL TEMP SENS SIG 2 EXH RESTRICTOR MOTOR CLOSED CTRL EXH RESTRICTOR MOTOR OPEN CTRL EXHAUST GAS RECIRCULATION VALVE 1 FANS FPP RLY CTRL FRP SENS LOW REF FUSED SPLY VOLT 2 FUSED SPLY VOLT 5 GLOW PLUG 1 GLOW PLUG 1 CTRL GLOW PLUG 2 GLOW PLUG 3 GLOW PLUG 4 GLOW PLUG 5 GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE OIL TEMP SENS SIG POWERTRAIN MAIN RLY PRE-THROTTLE AIR TEMP SIG PWR MAIN RLY FUSED SPLY VOLT 1 SYSTEM TRANSFER CASE FLUID TEMP SENS SIG VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

ACTUATOR CTRL CLOSE ACTUATOR CTRL OPEN AIR COOLANT TEMP SIG BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE COOLING FANS SYSTEM DFI HI VOLT CTRL CYL 1 DFI HI VOLT CTRL CYL 2 DFI HI VOLT CTRL CYL 5 DFI HI VOLT CTRL CYL 6 EH GAS RECIRCULATION 2 ENGINE BLOCK TEMP SENS SIG ENGINE CONTROL MODULE ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT TEMPERATURE SENSOR ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE CTRL MODULE LIN BUS 4 ENGINE INLET COOLANT TEMP SIG ENGINE OIL PRESSURE SENSOR ENGINE OUTLET COOLANT TEMP SIG ENGINE WATER CHARGE FRP SENS 2 SIG FUEL RAIL PRESS SENS SIG FUEL RAIL PRESSURE SENSOR GENERATOR FIELD DUTY CYCLE SIG GMC/ CHEVROLET GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/VIO WIRE INTAKE MANIFOLD TUNING SOLENOID VALVE LOGIC MAIN ENGINE COOLANT FLOW CONTROL VALVE MAP SENS SIG NCA WIRE PARTICULATE FILTER EXHAUST PRESSURE DIFFERENTIAL SENSOR RED/VIO WIRE RED/WHT WIRE STARTING/ CHARGING SYSTEM THROTTLE POS SENSOR SENT 1 SIG VALVE POSI SENS SIG VIO WIRE VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VLV CLOSE CTRL VLV OPEN CTRL WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE

AUTOSAR BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE APPLY BRAKE PEDAL POSITION SENSOR BRN/WHT WIRE CAN BUS (+) 2 COMPUTER DATA LINES SYSTEM CRANKCASE PRESSURE SENSOR ENGINE COOLANT TEMPERATURE SENSOR 2 EXHAUST GAS RECIRCULATION EXHAUST PRESSURE DIFFERENTIAL SENSOR EXHAUST PARTICULATE MATTER SENSOR FUEL LEVEL SENSOR FUEL PUMP GMC/ CHEVROLET GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE INSTRUMENT CLUSTER SYSTEM LOGIC MANIFOLD ABSOLUTE PRESSURE, INTAKE AIR TEMPERATURE SENSOR NITROGEN OXIDES SENSOR 1 NITROGEN OXIDES SENSOR 2 NITROGEN OXIDES SENSOR 3 RED/VIO WIRE RED/WHT WIRE SENS CTRL SENS LOW REF SENS SIG SERIAL DATA THROTTLE BODY (FRONT OF INTAKE MANIFOLD) VIO WIRE VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRY WIRE

5 VOLT REF BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM EXHAUST GAS RECIRCULATION COOLER TEMPERATURE SENSOR 1 EXHAUST GAS RECIRCULATION COOLER TEMPERATURE SENSOR 3 HEATER CTRL HEATER CTRL LOW IGNITION 1 VOLT 4 INJECTOR SUPPLY PIPE REDUCTANT HEATER 2 LINE HEATER CTRL LINE HEATER LOW CTRL LOGIC LOW REF OUTLET CHARGE AIR COOLER TEMPERATURE SENSOR POSITIVE VOLT 34 PRESSURE SENSOR SIG RED/WHT WIRE REDUCTANT CONTROL MODULE REDUCTANT PRESSURE SENSOR REDUCTANT PUMP REDUCTANT TANK FLUID SENSOR REDUCTANT TANK TEMPERATURE SENSOR SENSOR 5 VOLT REF 1 SENSOR FEEDBACK SIG SERIAL DATA (-) (1) SERIAL DATA (-) 7 SMART PUMP CTRL TANK 2 HEATER CTRL TANK HEATER LOW CTRL TANK REDUCTANT HEATER 1 TANK REDUCTANT HEATER 3 TEMP SENSOR SIG VIO/BLK WIRE VOLT PHASE 2 VOLT PHASE 3 WAKEUP SIG WHT WIRE WHT/BRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE

A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION SENSOR AIR CONDITIONING SYSTEM AMBIENT AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM APP LOW REF 1 APP LOW REF 2 APP SIG (1) APP SIG (2) AUTOSAR CAN BUS SER DATA (+) 3 AUTOSAR CAN BUS SER DATA (-) 2 BATT POS VOLT BLK/BLU WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRK POS SENS SIG BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE CHEVROLET/ GMC COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE OIL LEVEL INDICATOR SWITCH ENGINE OIL PRESSURE SENSOR EVAP SOL CTRL FPP RLY CTRL GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE HOOD STATUS A SIG HOT AT ALL TIMES MASS AIR FLOW SENS SIG OIL LEVEL SW SIG OIL PRESS SENS SIG POWERTRAIN CAN BUS SER DATA (+) POWERTRAIN RLY COIL CTRL PWR MAIN RLY FUSED SPLY (2) PWR MAIN RLY FUSED SPLY VOLT 1 RED/BRN WIRE RED/GRY WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK RUN/CRANK IGNITION 1 VOLT STARTER ENABLE RLY CTRL STARTING/ CHARGING SYSTEM TEMP SENS SIG VIO/BLU WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/WHT WIRE

BATT POS VOLT BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT SIDE OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN/BLU WIRE BRN/RED WIRE CHEVROLET/ GMC COMPUTER COMPUTER DATA LINES SYSTEM DATA 2 (+) DATA LINES DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROLS IGNITION RELAY ENGINE OIL IND ENGINE WIRING HARNESS JUNCTION BLOCK FUEL GAUGE FUEL GAUGE IND FUEL PRESSURE SENSOR FUEL TANK PRESSURE SENSOR GMLAN GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GROUND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT PANEL CLUSTER CONTROL MODULE LOGIC LOW SPD RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SERIAL SERIAL DATA 2 SYSTEM VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

5 V REF 1 ACTUATOR CLOSE CTRL BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE EVAPORATIVE EMISSION CANISTER VENT SOLENOID VALVE GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HIGH SIG BANK 1 SENS 1 HIGH SIG BANK 2 SENS 1 HIGH SIG BANK 2 SENS 2 IGNITION CTRL (5) IGNITION CTRL 3 IGNITION CTRL 4 IGNITION CTRL 6 KNOCK SENSOR LOW REF 1 KNOCK SENSOR LOW REF 2 LIN BUS 1 LIN BUS 2 LOW CTRL BANK 1 SENS 1 LOW CTRL BANK 1 SENS 2 LOW CTRL BANK 2 SENS (1) LOW CTRL BANK 2 SENS (2) LOW REF (1) LOW REF BANK 2 LOW SIG BANK 1 SENS (1) LOW SIG BANK 2 SENS (2) LOW SIG BANK 2 SENS 1 NCA WIRE OIL PUMP CTRL PWR MAIN RLY FUSED SPLY 5 RED/WHT WIRE SOLENOID ENABLE SIG 3 SOLENOID ENABLE SIG 4 SOLENOID ENABLE SIG 5 SOLENOID ENABLE SIG 6 SOLENOID VALVE CTRL 3 SOLENOID VALVE CTRL 5 SOLENOID VALVE CTRL 6 VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/WHT WIRE

5 V REF 1 ACTUATOR CLOSE CTRL BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE EVAPORATIVE EMISSION CANISTER VENT SOLENOID VALVE GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR BANK 1 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 HIGH SIG BANK 1 SENS 1 HIGH SIG BANK 2 SENS 1 HIGH SIG BANK 2 SENS 2 IGNITION CTRL (5) IGNITION CTRL 3 IGNITION CTRL 4 IGNITION CTRL 6 KNOCK SENSOR LOW REF 1 KNOCK SENSOR LOW REF 2 LIN BUS 1 LIN BUS 2 LOW CTRL BANK 1 SENS 1 LOW CTRL BANK 1 SENS 2 LOW CTRL BANK 2 SENS (1) LOW CTRL BANK 2 SENS (2) LOW REF (1) LOW REF BANK 2 LOW SIG BANK 1 SENS (1) LOW SIG BANK 2 SENS (2) LOW SIG BANK 2 SENS 1 NCA WIRE OIL PUMP CTRL PWR MAIN RLY FUSED SPLY 5 RED/WHT WIRE SOLENOID ENABLE SIG 3 SOLENOID ENABLE SIG 4 SOLENOID ENABLE SIG 5 SOLENOID ENABLE SIG 6 SOLENOID VALVE CTRL 3 SOLENOID VALVE CTRL 5 SOLENOID VALVE CTRL 6 VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/WHT WIRE