Chevrolet Trax I facelift (2016-2022) computer data lines system Wiring diagrams

2018 CHEVROLET ONLY BATT POSITIVE VOLT BATT POSITIVE VOLT BRK BOOSTER VACUUM SENS 5 VOLT REF BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRAKE BOOSTER PUMP MOTOR RELAY BRAKE BOOSTER VACUUM SWITCH BRAKE PRESSURE MODULATOR BRK FLUID LVL SENS SIG BRK VACUUM SENS LOW REF BRK VACUUM SENS SIG GMLAN SERIAL DATA (-) (2) BRK VACUUM SW SIG BRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM EBCM PUMP FUSE EBCM PWR FUSE ELECTRONIC BRAKE CONTROL MODULE (NEAR BRAKE MASTER CYLINDER) EVP FUSE GMLAN SERIAL DATA - 1 GMLAN SERIAL DATA 2 GRN/BRN WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK LEFT FRONT WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR LF WHEEL SPEED SENS CTRL LF WHEEL SPEED SENS SIG LR WHEEL SPEED SENS CTRL LR WHEEL SPEED SENS SIG NCA WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RF WHEEL SPEED SENS CTRL RF WHEEL SPEED SENS SIG RIGHT REAR WHEEL SPEED SENSOR RR WHEEL SPEED SENS CTRL RR WHEEL SPEED SENS SIG SENS SERIAL DATA COMM ENABLE SPLY VOLT STEERING WHEEL ANGLE SENSOR (TOP OF STEERING COLUMN) UNDERHOOD FUSE BLOCK UNDERHOOD RELAY BLOCK VEHICLE SUPPLY VOLT VIO WIRE VIO/BRN WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

1.4L VIN M TURBO 1.4L VIN B TURBO ABS IND. BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRAKE BOOSTER PUMP MOTOR BRAKE BOOSTER VACUUM SENSOR BRAKE FLUID LEVEL SWITCH BRAKE IND BRAKE PEDAL POSITION SENSOR BRK APPLY CTRL BRK APPLY SENS SIG BRK POS SENS 5 VOLT REF BRK POS SENS LOW REF BRK POS SENS SIG BRN/VIO WIRE CHEVROLET COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ESC SWITCH GMLAN SERIAL DATA - 1 GRN/GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) INSTRUMENT CLUSTER LOGIC LOW REF NCA WIRE PARK BRAKE SWITCH PRK BRK SW SIG RIGHT FRONT WHEEL SPEED SENSOR SENS SIG SIG GND TRACTION SW SIG 1 VEHICLE STABILITY CONTROL SWITCH WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE

12 V REF ACC IGN VOLTAGE ACC LED SIG AMBIENT LIGHT SENSOR SIGNAL ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS ANTI-THEFT SYSTEM AUTO STOP/START IND CTRL BATT POSITIVE VOLT BATTERY POSITIVE VOLTAGE BCM 1 FUSE BCM 2 FUSE BCM 3 FUSE BCM 4 FUSE BCM 5 FUSE BCM 8 FUSE BLK/BRN 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 (LEFT SIDE OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENSOR SIGNAL BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHALLENGE ACTIVE SIG COMPUTER DATA LINES SYSTEM CRUISE CONTROL SET/COAST/ RESUME/ACCELERATE SW SIG WINDSHIELD WIPER SW LOW REF CRUISE CONTROL, SOUND SYSTEMS DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DRV DR LOCK SW LCK SIG DRV DR LOCK SW UNLCK SIG REMOTE FUNCTION ACTR LOW REF ENGINE CONTROLS SYSTEM FRONT FOG LAMP SW SIG GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/WHT WIRE GRY/YEL WIRE HAZ SW RIGHT TURN SIG HAZARD LED DIMMING SIGNAL HAZARD SW LEFT TURN SIG HAZARD SW SIGNAL HDLP DIMMER SW HI BEAM SIG HDLP SW FLASH TO PASS SIG HDLP SW HDLPS OFF SIG CTRL HEADLAMP SW PARK LAMP SIG HEADLIGHTS SYSTEM HEADLIGHTS, CRUISE CONTROL, INTERIOR LIGHTS, SOUND SYSTEMS HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 1 REMOTE FUNCTION ACTR CTRL HI SPD GMLAN SERIAL DATA HI SPD GMLAN SERIAL DATA(+) REMOTE FUNC ACTR TRANSMIT SIG HORN SW SIGNAL HORNS SYSTEM HOT AT ALL TIMES IGN KEY RESISTOR SIG IGN MODE SW IGNITION SWITCH IMMOBILIZER CTRL IMMOBILIZER LOW REF IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM KEY-IN IGNITION SWITCH LED BACKLIGHT DIMMING CTRL LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LIN BUS 11 LIN BUS 4 LOW SPD GMLAN SERIAL DATA OFF OFF/RUN/CRANK IGN 1 VOLTAGE PARK LAMP SIG PASS DR LCK SW UNLK CTRL POWER DISTRIBUTION SYSTEM RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REMOTE FUNC ACTR RECEIVE SIG RR WIND WASHER RLY CTRL RR WIND WIPER SW SIGNAL RUN WIRE RUN/CRANK IGN 1 VOLT SECURITY INDICATOR CTRL SHIFT INTERLOCK SYSTEM START LED SIG STARTING/CHARGING SYSTEM STRG WHEEL RESIS LADDER SIG SW 1 SIGNAL TAP UP/TAP DOWN SW SIG TRACTION CTRL SW TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/BLU WIRE VIO/YEL WIRE W/O KEYLESS ENGINE START SWITCH W/O KEYLESS ENGINE START SWITCH W/ KEYLESS ENGINE START SWITCH WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW LO SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE

2019 DOOR LOCKS, ANTI-THEFT SYSTEMS ACCESSORY WAKEUP SER DATA AIR CONDITIONING SYSTEMS BACKUP LP CTRL BATT POSITIVE VOLT BATTERY BATTERY CURRENT SENSOR (ON NEGATIVE BATTERY CABLE) BATTERY POSITIVE VOLTAGE BCM 6 FUSE BCM 7 FUSE BCM RVC FUSE BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG CURRENT SENS CTRL CURRENT SENS LOW REF CURRENT SENS SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, INTERIOR LIGHTS SYSTEMS DR LK ACTUATOR LK CTRL DR LK ACTUATOR LK CTRL 2 DR LK ACTUATOR UNLK CTRL DRL RLY CTRL ENDGATE LATCH RLY COIL CTRL ENDGATE LATCH RLY CTRL EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS, NAVIGATION SYSTEMS FOG LAMP RLY CTRL FRT TURN LAMP FEEDBACK SIG FRT WINDSHIELD WIPER SW HI SIG GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HDLP HI BEAM RLY CTRL HEADLIGHTS SYSTEM HI SPEED GMLAN SER DATA (-) 1 HOOD AJAR SW SIGNAL HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INADVERTENT POWER CTRL INSTRUMENT CLUSTER, ANTI-LOCK BRAKES SYSTEMS INSTRUMENT PANEL FUSE BLOCK INTERIOR LAMP DEFEAT SW SIG INTERIOR LP CTRL KEY CAPTURE/COLUMN LK SHIFT POSITION SIG LED BACKLIGHT DIMMING CTRL LEFT PARK LP CTRL LF AJAR SIG LF TURN SIG LP CTRL LIFTGATE AJAR SW SIG 1 LIN BUS 1 LIN BUS 2 LIN BUS 3 LO SPEED GMLAN SER DATA LOGISTIC MODE RLY CLOSE CTRL LOGISTIC MODE RLY OPEN CTRL LR STOP LP CTRL LR TURN SIG LP CTRL NAVIGATION, TRANSMISSIONS SYSTEMS PARK BRAKE SW SIG PARK LK SOL CTRL PASS DR LK SW SIG LK CNTRL POWER DISTRIBUTION SYSTEM RAP RLY COIL CTRL REAR COMPT LID LP CTRL REAR LICENSE LP CTRL REAR WIPER MTR RLY COIL CTRL RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RF TURN LAMP FEEDBACK SIG RIGHT PARK LP CTRL RR CLOSURE HANDLE SW OPEN SIG RR STOP LP CTRL RR TURN SIG LP CTRL RUN RELAY COIL CONTROL RUN/CRANK RELAY COIL CTRL SERIAL DATA COMM ENABLE SHIFT INTERLOCK SYSTEM STARTING/CHARGING SYSTEM STOP LP RLY COIL CTRL TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS, INTERIOR LIGHTS SYSTEMS VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O PROJECTION HEADLAMPS W/ PROJECTION HEADLAMPS CHEVROLET WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RLY CTRL WIPER MTR PARK SW SIG WIPER MTR RLY COIL CTRL WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

BATT +VE VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLU WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOL FAN HIGH FUSE COOL FAN LOW/MID FUSE COOLANT TEMP SENS 2 LOW REFERENCE COOLANT TEMP SENS LOW REFERENCE COOLANT TEMP SENSOR SIG COOLING FAN HIGH SPEED RELAY COOLING FAN LOW SPEED RELAY COOLING FAN MEDIUM SPEED RELAY COOLING FAN MOTOR COOLING FAN RELAY COOLING FAN RESISTOR (LOWER LEFT SIDE OF DASH) COOLING FAN SPEED CONTROL RELAY DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE COOLANT RADIATOR TEMPERATURE SENSOR ENGINE COOLANT TEMP SENS SIG ENGINE COOLANT TEMPERATURE IND ENGINE COOLANT TEMPERATURE SENSOR ENGINE COOLANT THERMOSTAT HEATER FAN 3 RELAY 85, FWD AUX FUSE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE HI SPEED COOLING FAN RLY CTRL HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK IPC B+ FUSE LO SPEED COOLING FAN RLY CTRL LOGIC LOW SPEED GMLAN SERIAL DATA RED WIRE RED/BLU WIRE THERMOSTAT ENG COOL CTRL UNDERHOOD FUSE BLOCK UNDERHOOD RELAY BLOCK VIO/BLU WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

AM/FM AUX AUDIO COMMON SIG AUX DETECTION SIG AUXILIARY AUDIO INPUT BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN/BLU WIRE CELL CELLULAR PHONE ANTENNA CELLULAR TEL VOICE SIG COAX COAX 1 1 COAX BK COAX BK USB SERIAL DATA COAX GD COMPUTER DATA LINES SYSTEM DATA DIGITAL RADIO ANTENNA GMLAN SERIAL DATA 2 GRN WIRE GRN/BLK WIRE GRY WIRE GRY/LT GRN WIRE HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LEFT AUX AUDIO SIG (2) LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LOW REF LR SPEAKER (+) CTRL LR SPEAKER SIG (-) 1 LT BLU WIRE NCA WIRE RADIO RADIO ANTENNA RED/GRY WIRE RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RIGHT AUX AUDIO SIG (2) RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER ROOF REAR ANTENNA RR SPEAKER (+) CTRL RR SPEAKER SIG (-) 1 SIG GND SILBOX- AUDIO-NAV FUSE USB USB SERIAL VIO WIRE VOICE REC AUDIO LOW REF CELLULAR TELEPHONE MIC LOW REF VOICE REC AUDIO SIG CELLULAR TEL MIC SIG W/ ONSTAR W/O ONSTAR WHT WIRE YEL WIRE YEL/BLK WIRE

AUDIO LOW REF AUDIO SIG + BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN/BLU WIRE CELL CELLULAR CELLULAR PHONE MICROPHONE COAX COMPUTER DATA LINES SYSTEM DATA 9 (+) GRN WIRE GRN/BLK WIRE GRY/YEL WIRE HI SPD GMLAN LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LOW REF LT BLU WIRE LT BLU/LT GRN WIRE MIC LO REF MIC SIG NCA WIRE RED/GRN WIRE SERIAL SIGNAL GND TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TELEPHONE VOICE REC VOICE SIGNAL W/ ONSTAR W/O ONSTAR WHT/LT GRN WIRE YEL WIRE

BATT POS VOLT BCM 2 FUSE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT STEERING WHEEL CONTROLS SWITCH MUTE ONS GLONAS FUSE RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SERIAL DATA (-) (1) SIG GND SOURCE STEERING WHEEL AIR BAG COIL VOICE VOL (-) WHT WIRE WHT/RED WIRE

AM/FM AMPLIFIER CTRL AUDIO AMPLIFIER (RIGHT SIDE OF LUGGAGE COMPT) AUXILIARY AUDIO INPUT BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CAMERA SIG 2 CELL CELLULAR PHONE ANTENNA COAX COAX BK COAX BU COAX GD COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA ETHERNET BUS 7 (-) FRT LO LEVEL AUDIO (-) GMLAN SERIAL DATA 2 GPS GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/LT GRN WIRE GRY/YEL WIRE HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LF LO LEVEL AUDIO SIG LF LO LEVEL AUDIO- LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LR LO LEVEL AUDIO (-) LR LO LEVEL AUDIO SIG LR SPEAKER (+) CTRL LR SPEAKER SIG (-) NAVIGATION ANTENNA NAVIGATION SYSTEM NCA WIRE RADIO RADIO ANTENNA REAR VIEW CAMERA CIRCUIT RED/GRY WIRE REMOTE ENABLE SIG RF LO LEVEL AUDIO SIG RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 ROOF REAR ANTENNA RR LO LEVEL AUDIO SIG RR LO LEVEL AUDIO- RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SIG GND SILBOX- AUDIO-NAV FUSE TBD GND USB USB BK USB SERIAL DATA USB SERIAL DATA VIO/BLU WIRE VOICE REC AUDIO LO REF VOICE REC AUDIO SIG WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE

AIR BAG IND BATT POSITIVE VOLT BCM 8 FUSE BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRAKE FLUID LEVEL SENS SIG BRAKE FLUID LEVEL SWITCH COMPUTER DATA LINES SYSTEM DLIS FUSE DRIVER DOOR LATCH ASSEMBLY DRIVER INFORMATION CENTER DISPLAY DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH DRV SEAT BELT ELECTRONIC BRAKE CONTROL MODULE GMLAN SER DATA - (1) GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HEADLAMP SW PARK LAMP SIG HEADLAMP SWITCH HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK KEY-IN IGNITION SWITCH LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LF DR AJAR SW SIG LIFT GATE AJAR SW SIG 1 LIFTGATE LATCH LO SPD GMLAN LO SPD GMLAN SER DATA LO SPD GMLAN SER DATA 2 LOCAL INTERCONNECT NETWORK SER DATA BUS 3 LOGIC LOGIC DRIVER WINDOW MOTOR LR DR AJAR SW SIG NCA WIRE NETWORK BUS 3 NETWORK BUS 4 OFF OFF AUTO OFF/RUN/CRANK VOLT ORG/BRN WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH PARK HEAD PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH RADIO RED/YEL WIRE RF DR AJAR SW SIG RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SW SIG RUN WIRE SEAT BELT IND SER DATA SIG GND SW LOW REF SW SIG VIO/GRY WIRE W/O KEYLESS ENGINE START SWITCH WHT WIRE WHT/VIO WIRE