Chevrolet TrailBlazer II facelift (2017-2024) computer data lines system Wiring diagrams

5 VOLT REF A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY ACCESSORY WAKE-UP AMBIENT LIGHT SENS SIG AUXILIARY HEATER CTRL BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLOWER MTR SPD CTRL BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BODY CONTROL MODULE BRN WIRE BRN/GRN WIRE BRN/VIO WIRE COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM CURRENT SENSOR DEFOGGER SYSTEM DRIVER SOLAR SENSOR SIGNAL GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HUMIDITY SENS SIG 2 HUMIDITY TEMP SENS SIG HVAC CONTROL MODULE (CENTER OF DASH) HVAC CONTROL MODULE LIN BUS 1 INSIDE AIR TEMP SENS SIG LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE REAR DEFOG RLY CTRL REAR DEFOGGER IND REAR DEFOGGER SWITCH RED WIRE RED/BLU WIRE RED/GRN WIRE RUN/CRANK IGNITION 1 VOLT SERIAL DATA SIGNAL SOLAR SENSOR LOW REF TEMPERATURE, INSIDE MOISTURE SENSOR LOW REF UNDERHOOD FUSE BLOCK UPPER DUCT AIR TEMP SENS SIG VIO WIRE VIO/GRY WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE WINDSHIELD TEMP SENS SIG WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL WIRE YEL/BLU WIRE YEL/RED WIRE

5 VOLT REFE 1 A/C COMPRESSOR CLUTCH RLY CTRL A/C EVAPORATOR TEMP SENS SIG A/C ON IND A/C ON SWITCH A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AIR INLET DOOR ACTUATOR AIR INLET DOOR ACTUATOR CTRL 1 AIR INLET DOOR ACTUATOR CTRL 2 AIR INLET DOOR ACTUATOR CTRL 3 AIR INLET DOOR ACTUATOR CTRL 4 AIR TEMP DOOR ACTUATOR CTRL 1 AIR TEMP DOOR ACTUATOR CTRL 2 AIR TEMP DOOR ACTUATOR CTRL 3 AIR TEMP DOOR ACTUATOR CTRL 4 AIR TEMP DOOR LOW REF AIR TEMP SENS SIG AUXILIARY HEATER BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLANT PUMP RLY CTRL ENG COOLANT TEMP SENS SIG ENGINE CONTROL MODULE ENGINE CONTROL MODULE LIN BUS 1 ENGINE CONTROL SENS ENGINE CONTROL SENS LOW REF 2 GRN WIRE GRN/VIO WIRE GRY WIRE GRY/BRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HVAC CONTROL MODULE (CENTER OF DASH) HVAC DOOR ACTUATOR CTRL LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT UPPER AIR TEMP SENS SIG LOGIC LOW REFE 1 MODE DOOR ACTUATOR MODE DOOR ACTUATOR CTRL 1 MODE DOOR ACTUATOR CTRL 2 MODE DOOR ACTUATOR CTRL 3 MODE DOOR ACTUATOR CTRL 4 VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRY WIRE YEL WIRE YEL/GRN WIRE

5 VOLT REF A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY ACCESSORY WAKE-UP AMBIENT LIGHT SENS SIG AUXILIARY HEATER CTRL BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLOWER MTR SPD CTRL BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BODY CONTROL MODULE BRN WIRE BRN/GRN WIRE BRN/VIO WIRE COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM CURRENT SENS SIG DEFOGGER SYSTEM GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HUMIDITY SENS SIG 2 HUMIDITY TEMP SENS SIG HVAC CONTROL MODULE (CENTER OF DASH) HVAC CONTROL MODULE LIN BUS 1 INSIDE AIR TEMP SENS SIG LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE REAR DEFOG RLY CTRL REAR DEFOGGER IND REAR DEFOGGER SWITCH RED WIRE RED/BLU WIRE RED/GRN WIRE RUN/CRANK IGNITION 1 VOLTAGE SERIAL DATA SOLAR SENS PULSED VOLT REF SOLAR SENSOR LOW REF TEMPERATURE, INSIDE MOISTURE SENSOR LOW REF UNDERHOOD FUSE BLOCK UPPER DUCT AIR TEMP SENS SIG VIO WIRE VIO/GRY WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE WINDSHIELD TEMP SENS SIG WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL WIRE YEL/BLU WIRE YEL/RED WIRE

AMBIENT AIR TEMPERATURE SENSOR AMBIENT LIGHT/SUNLOAD SENSOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLING FAN MOTOR (BEHIND RADIATOR) DRIVER INFORMATION CENTER DISPLAY DUCT UPPER AIR TEMPERATURE SENSOR ENGINE COOLANT TEMPERATURE IND GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HEATED STEERING WHEEL IND HEATED STEERING WHEEL SWITCH HOT AT ALL TIMES HVAC CONTROLS INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE SERL DATA 2 SPD GMLAN VIO WIRE VIO/GRY WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE

5-VOLT REFERENCE 1 A/C COMPRESSOR CLUTCH RLY CTRL A/C EVAPORATOR TEMP SENS SIG A/C ON IND A/C ON SWITCH A/C REFRIGERANT PRESSURE SENSOR AIR INLET DOOR ACTUATOR AIR INLET DOOR ACTUATOR CONTROL 1 AIR INLET DOOR ACTUATOR CONTROL 2 AIR INLET DOOR ACTUATOR CONTROL 3 AIR INLET DOOR ACTUATOR CONTROL 4 AIR TEMP DOOR ACTUATOR CTRL 1 AIR TEMP DOOR ACTUATOR CTRL 2 AIR TEMP DOOR ACTUATOR CTRL 3 AIR TEMP DOOR ACTUATOR CTRL 4 AIR TEMP DOOR LOW REF AMBIENT AIR TEMP SENS SIG BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FAN SPEED CTRL SIG DOOR ACTUATOR CONTROL ENGINE BLOCK COOLANT ENGINE CONTROL ENGINE CONTROL MODULE ENGINE CONTROL SENS LOW REF 1 ENGINE CONTROL SENSORS ENGINE CTRL SENS LOW REF 1 ENGINE INLET COOLANT TEMP SIG ENGINE INTEGRATED EXHAUST ENGINE OUTLET COOLANT TEMP SIG GRN WIRE GRY WIRE GRY/BRN WIRE GRY/VIO WIRE HEATER CORE INLET TEMP SIG HEATER CORE OUTLET TEMP SIG HI SPD GMLAN SERIAL DATA (-) (1) HVAC CONTROL MODULE (CENTER OF DASH) LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT UPPER AIR TEMP SENS SIG LOGIC LOW REF (1) MANIFOLD TEMPERATURE SIG MODE DOOR ACTUATOR MODE DOOR ACTUATOR CTRL 1 MODE DOOR ACTUATOR CTRL 2 MODE DOOR ACTUATOR CTRL 3 MODE DOOR ACTUATOR CTRL 4 SENSORS LOW REF 2 TEMPERATURE SIGNAL VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

A/C COMPRESSOR CLUTCH RELAY CTRL A/C REFRIGERANT PRESSURE SENS SIG ACC PEDAL POS 5 VOLT REFERENCE 1 ACC PEDAL POS LOW REFERENCE 1 ACC PEDAL POS LOW REFERENCE 2 ACC PEDAL POS SIG 1 ACCELERATOR PEDAL POSITION SENSOR ACCESSORY WAKEUP SERIAL DATA AIR CONDITIONING SYSTEM AMBIENT AIR TEMPERATURE SENS SIG AMBIENT AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRAKE POS SENS SIG BRN/RED WIRE BRN/WHT WIRE CHECK ENGINE INDICATOR CTRL COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG ENGINE CONTROL MODULE (ON RIGHT SIDE OF RADIATOR) ENGINE CTRL SENS LOW REFERENCE 2 EVAP PURGE SOLENOID VALVE CTRL EVAPORATIVE EMISSION PURGE PUMP (ON THE LEFT SIDE OF INTAKE MANIFOLD) FUEL PUMP PRIMARY RELAY CTRL GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HIGH SPD GMLAN SERIAL DATA (+) 1 HIGH SPD GMLAN SERIAL DATA (+) 3 HIGH SPD GMLAN SERIAL DATA (+) 7 HOOD OPEN SWITCH SIG LOGIC MASS AIR FLOW SENS SIG MULTI-FUNCTION INTAKE AIR SENSOR OIL PRESSURE SENS SIG POWERTRAIN MAIN RELAY FUSED SPLY 1 POWERTRAIN MAIN RELAY FUSED SPLY 3 POWERTRAIN MAIN RELAY FUSED SPLY 5 POWERTRAIN RELAY COIL CTRL RED/WHT WIRE RUN/CRANK IGNITION 1 VOLTAGE 1 STARTER ENABLE RELAY CTRL STARTING/CHARGING SYSTEM TRANSMISSION INTERNAL MODE SWITCH MODE CONTROL Y TRANSMISSIONS SYSTEM VEHICLE PERFORMANCE DATA RECORDER CAMERA ACC PEDAL POS SIG 2 VIO/BLU WIRE VIO/GRY WIRE VIO/YEL 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

BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY ECT GAUGE ECT IND ENGINE OIL IND EVAP VENT SOLENOID VALVE CTRL EVAPORATIVE EMISSION PURGE SOLENOID VALVE FUEL GAUGE FUEL IND FUEL LEVEL SENS 2 LOW REF FUEL LEVEL SENS LOW REF FUEL PRESSURE SENS LOW REF FUEL PRESSURE SENS SIG FUEL PRESSURE SENSOR FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE (UNDER THE LEFT REAR OF THE VEHICLE, NEAR AXLE) FUEL PUMP PRIMARY RELAY CTRL FUEL PUMP SPLY VOLT PHASE 2 FUEL PUMP SPLY VOLT PHASE 3 FUEL TANK PRESS SENS SIG FUEL TANK PRESSURE GMLAN GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GROUND 3 GRY WIRE GRY/GRN WIRE HI SPD GMLAN SER DATA (-) 7 HIGH SPD GMLAN SER DATA (+) 7 HOT W/ IGNITION MAIN RELAY ENERGIZED IGN IGN 1 INSTRUMENT CLUSTER LOGIC LOW SPD MALFUNCTION IND LIGHT PRIMARY FUEL LEVEL SENS SIG RED/WHT WIRE SECONDARY FUEL LEVEL SENS SIG SENS LOW REFERENCE SERIAL UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VOLT 4 WAKEUP SIG WHT WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE YEL/GRY WIRE YEL/RED WIRE

5-VOLT REF 1 BANK 1 SENS 2 BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BODY CONTROL MODULE BOOST CTRL SOL VALVE CTRL BRAKE APPLY BRAKE PEDAL POSITION SENSOR BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT PUMP RLY CTRL COOLING FANS SYSTEM CURRENT TRIM SIG DATA 1 (+) ENG CTRL MODULE LIN BUS 1 ENG CTRL MODULE LIN BUS 2 ENGINE CONTROL MODULE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE ENGINE OIL PUMP CTRL GMLAN SERIAL GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/GRN WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 2 HI SPD GMLAN HIGH SPD INTAKE AIR TEMP SENS 2 SIG KNOCK SENS 1 LOW REF KNOCK SENS 1 SIG LIN BUS 4 LOW CTRL BANK 1 SENS 1 LOW REF (1) MAIN RLY FSD SPLY 5 NCA WIRE RED/WHT WIRE SENS 5 VOLT REF 1 SENS LOW REF SENS SIG SENS VOLT REF SERIAL SIG GND SOL VALVE CTRL BANK 1 THROTT ACTUATOR CLOSE CTRL THROTT ACTUATOR OPEN CTRL TRANSMISSIONS SYSTEM TURBOCHARGER BYPASS SOLENOID VALVE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE WASTEGATE SOL VALVE CTRL WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE

A/C COMPRESSOR CLUTCH RELAY ACTIVE GRILLE AIR SHUTTER 1 ACTUATOR BAT POS VOL 54 BATTERY FUSE BLOCK BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROLS IGNITION RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE FUEL PUMP FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE (UNDER THE LEFT REAR OF THE VEHICLE, NEAR AXLE) FUEL PUMP, LEVEL SENSOR ASSEMBLY (INSIDE FUEL TANK) GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE HIGH SPEED GMLAN HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LOGIC PRIMARY FUEL LEVEL SENSOR RED/BLU WIRE RED/WHT WIRE RLY CTRL SECONDARY FUEL LEVEL SENSOR SENS 2 LOW REF SENS LOW REF SENS SIG SERIAL DATA (-) 7 SOLENOID VALVE CTRL SPLY VOLT PHASE 2 SPLY VOLT PHASE 3 UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE WAKE UP SIG WHT WIRE WHT/BRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/GRY WIRE YEL/RED WIRE

BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY ECT GAUGE ECT IND ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE COOLANT PUMP ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE COOLANT TEMPERATURE SENSOR 6 ENGINE OIL IND ENGINE OIL TEMPERATURE SENSOR FUEL GAUGE FUEL IND GMLAN GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GROUND 3 GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 2 IGN IGN 1 INSTRUMENT CLUSTER LOGIC LOW SPD MALFUNCTION IND LIGHT MULTI-FUNCTION INTAKE AIR SENSOR NCA WIRE SERIAL VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VOLT 4 WHT WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRY WIRE