Chevrolet Blazer III (2018-2023) left of battery) Wiring diagrams

BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE COMMUNICATION ENABLE ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HIGH SPEED EXTENSION BUS TERMINATING RESISTOR 2 HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT OF BATTERY) LOW LEVEL LOW SPD GMLAN MID/HIGH LEVEL RADIO RUN/CRANK IGNITION 1 VOLTAGE SERIAL DATA SERIAL DATA (-) 9 SERIAL DATA 2 SERIAL DATA GATEWAY MODULE UNDERHOOD FUSE BLOCK VIO/GRY WIRE W/ ONSTAR W/O ONSTAR WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE

BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG FRONT OVERHEAD CONSOLE ASSEMBLY GRN/GRY WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INADVERTENT PWR CTRL INSTRUMENT PANEL FUSE BLOCK INTR LP CTRL INTR LP DEFEAT SW SIG LED AMBIENT LIGHTING CTRL 1 LED AMBIENT LIGHTING CTRL 2 LEFT CARGO LAMP LEFT FRONT FLOOR COURTESY LAMP LEFT OF BATTERY) LOGIC OFF POWER SUPPLY TRANSFORMER REAR COMPARTMENT LID LP CTRL RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT CARGO LAMP RIGHT FRONT FLOOR COURTESY LAMP UNDERHOOD FUSE BLOCK VIO/GRN WIRE W/ FULL VIDEO DISPLAY WHT WIRE WHT/BRN WIRE WHT/YEL WIRE

BATTERY FUSE BLOCK BLK WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR GRN/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE HVAC CONTROLS LEFT OF BATTERY) LOGIC NETWORK SERIAL DATA BUS 9 OUTSIDE REAR VIEW MIRROR HEATER RELAY PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR BODY FUSE BLOCK REAR DEFOG RLY CTRL REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER SWITCH RED/VIO WIRE RUN/CRANK IGN 1 VOLT UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE

BLK WIRE BLK/RED WIRE BLU WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GROUND GRY WIRE GRY/ORG WIRE HEATED STEERING WHEEL IND HEATED STEERING WHEEL SWITCH HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT LEFT OF BATTERY) LEFT STEERING WHEEL CONTROLS SWITCH LOGIC NCA WIRE ORG/ WIRE RED WIRE RIGHT STEERING WHEEL CONTROLS SWITCH SERIAL DATA BUS 19 STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER (INSIDE STEERING WHEEL) STEERING WHEEL HEATING CONTROL MODULE SW LED CTRL SW SIG UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE

BATTERY FUSE BLOCK BLK WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE GRN WIRE GRN/WHT WIRE GRY WIRE HORN ASSEMBLY HORN RELAY HORN RLY CTRL HORN SW SIG HORN SWITCH HOT AT ALL TIMES LEFT OF BATTERY) NCA WIRE RED WIRE STEERING WHEEL AIR BAG COIL UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE

AUXILIARY AUDIO INPUT BATT POS VOLT BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BODY CONTROL MODULE BRN/WHT WIRE CENTER CONSOLE REAR USB RECEPTACLE COMPUTER DATA LINES SYSTEM DIMMER SW LOW REF DIMMER SW SIG DOME LP OFF INDICATOR CTRL DRIVER MODE SELECT SWITCH GRN WIRE GRN/YEL WIRE HAZARD WARNING SWITCH HEADLAMP SWITCH HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HVAC CONTROLS IGNITION MODE SWITCH INDICATOR DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK LED BACKLIGHT DIMMING CTRL LEFT OF BATTERY) LIN SERIAL DATA BUS 3 LOGIC LR HEATED SEAT HI INDICATOR CTRL PARK BRAKE CONTROL SWITCH POWER SUPPLY TRANSFORMER RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RR HEATED SEAT HI INDICATOR CTRL STEERING WHEEL AIR BAG COIL STOP/START INDICATOR CTRL UNDERHOOD FUSE BLOCK USB RECEPTACLE VEHICLE STABILITY CONTROL SWITCH WHT WIRE YEL WIRE YEL/GRY WIRE

AUXILIARY AUDIO INPUT BLK WIRE BLU/BLK WIRE BODY CONTROL MODULE COMPUTER COMPUTER DATA DATA LINES FROM UNDERHOOD FUSE BLOCK (DIAGRAM 1 OF 9) HVAC CONTROLS INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LINES SYSTEM PARKING ASSIST CONTROL MODULE RADIO RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE STARTING/CHARGING SYSTEM TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TRANSMISSION CONTROL MODULE UNDERHOOD FUSE BLOCK USB RECEPTACLE VIO/BLK WIRE VIO/YEL WIRE W/ ONSTAR WHT WIRE YEL/BLK WIRE

ACC IGN VOLT ACTR CTRL ACTR RECEIVE SIG ACTV SIG GND AMBIENT LIGHT/SUNLOAD SENSOR BATT POS VOLT BATT POS VOLT BATT POS VOLT REMOTE FUNCTION BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/WHT WIRE BODY CONTROL MODULE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DR LOCK ACTR LK CTRL DR LOCK ACTR UNLK CTRL DR LOCK ACTR LK CTRL 2 DRIVER DOOR LOCK SWITCH DRV DR LK SW LK SGI DRV DR LK SW UNLK SIG FUEL DR LK RLY CTRL GLOVE BOX DR REL RLY CTRL GLOVE BOX DR REL SIG SECURITY IND CTRL REMOTE FUNCTION GLOVE BOX) GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HDLP LO BEAM RLY CTRL HDLP LO BEAM RLY CTRL HORN RLY CTRL HEADLIGHTS SYSTEM HOOD AJAR SW SIG PUSHBUTTON ST CHALLENGE HORNS SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LO SPD GMLAN SER DATA LO SPD GMLAN SERIAL DATA NETWORK SER DATA BUS 9 PASS DR LK SW LK CTRL PASS DR LK SW UNLK CTRL PASSENGER DOOR LOCK SWITCH POWER SUPPLY TRANSFORMER RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REMOTE CONTROL DOOR LOCK RECEIVER REMOTE FUNCTION ACTR TRANSMIT SIG REMOTE FUNCTION ACTR LO REF RUN/CRANK IGN 1 VOLT SOLAR SENS LO REF UNDERHOOD FUSE BLOCK VEHICLE STABILITY CONTROL SWITCH VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/VIO WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BODY CONTROL MODULE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FRONT WINDSHIELD WIPER SW HIGH SIG GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LOGIC LOW SPD GMLAN SERIAL DATA 2 LOW WASHER FLUID IND CTRL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR WIND WASHER RLY CTRL REAR WIND WIPER SW SIG REAR WIPER MTR RLY COIL CTRL RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SIG GND UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WINDSHIELD WASHER RLY CTRL WINDSHIELD WASHER SW SIG WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MTR PARK SW SIG WINDSHIELD WIPER MTR RLY COIL CTRL WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WIPER SW HIGH SIG WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

BLK WIRE BLK/GRY WIRE BLU WIRE BLU/VIO WIRE BRN/BLU WIRE BRN/GRY WIRE DELAY SWITCH GRN/WHT WIRE GRY WIRE GRY/VIO WIRE HI LO HOT AT ALL TIMES LEFT OF BATTERY) MIST OFF INT REAR WINDOW WASHER PUMP REAR WINDOW WASHER PUMP RELAY REAR WIPER MOTOR REAR WIPER RELAY RED/YEL WIRE UNDERHOOD FUSE BLOCK VIO WIRE WASHER SWITCH WHT/BLK WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER SWITCH WINDSHIELD WIPER/WASHER SWITCH YEL WIRE YEL/BLU WIRE