Chevrolet Trax I facelift (2016-2022) nca 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

BATT POSITIVE VOLT BATT POSITIVE VOLT HDLP HI BEAM RLY CTRL BCM 3 FUSE BCM 4 FUSE BCM 6 FUSE BCM 7 FUSE BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM FOG LAMP RLY CTRL FRONT FOG LAMP FUSE FRONT FOG LAMP RELAY FRONT FOG LAMP SW SIG FTP GRN WIRE GRN/BRN WIRE GRY WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP SW FLASH TO PASS SIG HDLP SW OFF SIG CTRL HDLP SW ON SIG HEADLAMP HIGH BEAM RELAY HI SPD GMLAN SERIAL DATA (+) 1 AMBIENT LIGHT SENS SIG HI SPD GMLAN SERIAL DATA (-) (1) HIGH BEAM LH FUSE HIGH BEAM RH FUSE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT HEADLAMP ASSEMBLY LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LH HDLP LOW BEAM CTRL LH HDLP LOW BEAM RLY CTRL LT BLU WIRE LT BLU/VIO WIRE NCA WIRE PARK BRAKE SWITCH PARK BRK SW SIG LH DRL RLY CTRL RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RH DRL RLY CTRL RH HDLP LOW BEAM CTRL RH HDLP LOW BEAM RLY CTRL RIGHT HEADLAMP ASSEMBLY RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP SIG GROUND TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK W/O PROJECTION HEADLAMPS W/O PROJECTION HEADLAMPS W/ PROJECTION HEADLAMPS WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE

BLK WIRE BLU/BRN WIRE GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLU WIRE LEFT DAYTIME RUNNING LAMP RELAY LEFT DAYTIME RUNNING LAMP, LEFT HEADLAMP ASSEMBLY LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP NCA WIRE RIGHT DAYTIME RUNNING LAMP RIGHT DAYTIME RUNNING LAMP RELAY RIGHT HEADLAMP ASSEMBLY RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP UNDERHOOD FUSE BLOCK W/ PROJECTION HEADLAMPS WHT WIRE WHT/BRN WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE CHEVROLET COMPUTER DATA LINES SYSTEM DOME LAMP (CHEVROLET) REAR DOME/READING LAMPS (BUICK) DOME/READING LAMPS DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRIVER WINDOW MOTOR LOGIC DRIVER WINDOW SWITCH GRN/YEL WIRE GRY WIRE GRY/GRN WIRE LEFT SUNSHADE LEFT SUNSHADE MIRROR LAMP LF DR AJAR SW LOGIC NCA WIRE NETWORK BUS 3 OUTSIDE REAR VIEW MIRROR SWITCH PASSENGER DOOR LOCK SWITCH RIGHT SUNSHADE RIGHT SUNSHADE MIRROR LAMP SIG SIG MTR STATUS SUNROOF SWITCH SUNROOF TILT SWITCH W/ MEMORY W/O MEMORY W/ SLIDING WHT/BRN WIRE WHT/VIO 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

AM/FM AUXILIARY AUDIO INPUT BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN/BLU WIRE CELL CELLULAR PHONE ANTENNA COAX COAX BK COAX BU COAX GD COMPUTER DATA LINES SYSTEM DIGITAL RADIO ANTENNA GMLAN SERIAL DATA 2 GPS GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/LT GRN WIRE HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT REAR DOOR SPEAKER LR SPEAKER SIG (-) NAVIGATION ANTENNA NCA WIRE RADIO RADIO ANTENNA RED/GRY WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT REAR DOOR SPEAKER ROOF REAR ANTENNA SIG GND SILBOX- AUDIO-NAV FUSE USB USB BK USB SERIAL DATA USB SERIAL DATA USB SERIAL DATA WHT WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BCM 2 FUSE BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/BLU WIRE CAMERA SIG 2 CELL COAX COMPUTER DATA LINES SYSTEM ETHERNET BUS 7 (-) GMLAN SERIAL DATA (+) 9 GPS GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT STEERING WHEEL CONTROLS SWITCH LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LR SPEAKER (+) CTRL MUTE NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE ONS GLONAS FUSE RADIO RED WIRE RED/BLU WIRE RED/GRN WIRE RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RIGHT STEERING WHEEL CONTROLS SWITCH RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SEEK DOWN SEEK UP SERIAL DATA (-) (1) SIG GND SOURCE STEERING WHEEL AIR BAG COIL VOICE VOICE REC AUDIO LO REF VOICE REC AUDIO SIG VOL (-) WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

AUDIO LOW REF AUDIO SIG + BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/BLU WIRE CELL COAX COMPUTER DATA LINES SYSTEM GMLAN SERIAL DATA (+) 9 GPS GRN WIRE GRN/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES IGNITION SWITCH KEY-IN IGNITION SWITCH LADDER SIG 1 LEFT STEERING WHEEL CONTROLS SWITCH LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LR SPEAKER (+) CTRL LR SPEAKER SIG (-) LT BLU WIRE LT BLU/LT GRN WIRE MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE OFF OFF/RUN/CRANK IGN VOLT RADIO RED WIRE RED/GRY WIRE RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RIGHT STEERING WHEEL CONTROLS SWITCH RR SPEAKER (+) CTRL RR SPEAKER SIG (-) RUN WIRE SEEK DOWN SEEK UP SERIAL DATA (-) (1) SIG GND STEERING WHEEL AIR BAG COIL VOICE LOW REF VOICE SIG VOICE SOURCE VOL (-) WHT WIRE WHT/LT GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BACKUP LAMP CONTROL BATTERY POSITIVE VOLTAGE BLK WIRE BN LVDS BU LVDS CAMERA SIG 2 CAMERA SIGNAL 2 GRN/WHT WIRE GROUND GRY/WHT WIRE GRY/YEL WIRE HOT W/ BATTERY SAVER RELAY 1 ENERGIZED HUMAN MACHINE INTERFACE CONTROL BYPASS MODULE HUMAN MACHINE INTERFACE CONTROL MODULE INFO DISPLAY MODULE INSTRUMENT PANEL FUSE BLOCK LVDS NAVIGATION DISPLAY SIG NAVIGATION TBD DISPLAY SIG TBD NCA WIRE RAP RELAY COIL CONTROL RED/GRY WIRE SERIAL DATA BUS 5 SILBOX- AUDIO-NAV FUSE TBD TBD NAVIGATION TBD DISPLAY SIG TBD WHT/BLU 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