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

AMBIENT LIGHT/SUNLOAD SENSOR (TOP CENTER OF INSTRUMENT PANEL) BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLOWER MOTOR BLOWER SPD BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR SPD CTRL BODY CONTROL MODULE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS ELEC VARIABLE DISP CTRL ELEC VARIABLE DISP SPLY FEEDBACK SIG GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HUMIDITY SENS SIG HUMIDITY TEMP SENS SIG HVAC CONTROL MODULE (BEHIND HVAC CONTROLS) INSIDE AIR TEMP SENS SIG INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LO SPD GMLAN SERIAL DATA LOGIC MTR SPD CTRL NCA WIRE REAR DEFOG RLY CTRL RED/BLU WIRE RED/VIO WIRE RUN/CRANK IGN 1 VOLT SERIAL DATA BUS 9 SOLAR SENS LO REF TEMP SENS LO REF TWILIGHT SENTINEL DELAY SIG UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE WHT WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL WIRE YEL/BLU WIRE YEL/RED WIRE YEL/VIO WIRE

12 VOLT REF 2.0L TURBO 2.5L 2.5L 3.6L 3.6L ACCELERATE SW SIG ACCELERATOR PEDAL POSITION SENSOR APP LOW REF 1 APP LOW REF 2 APP SIG (1) APP SIG (2) BATT POS VOLT 1 BATT POS VOLT 27 BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS VOLT REF BRAKE POS SENS SIG BRAKE SENS LOW REF BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CANCEL SWITCH COMPUTER DATA LINES SYSTEM CRUISE SWITCH CRUISE/ETC/TCC BRK SIG CRUISE/ETC/TCC/BRK SIG ENGINE CONTROL MODULE (MOUNTED AT RIGHT SIDE OF BATTERY) FORWARD COLLISION ALERT WARNING SWITCH GAP UP/DOWN SW SIG GAP UP/GAP DOWN SWITCH GND 17 GND 3 GRN/ORG WIRE GRN/WHT WIRE GRY/GRN WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED J127 (2.5L, 3.6L) J128 (2.OL TURBO) LEFT OF BATTERY) LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RED/WHT WIRE RES+ SET- STEERING WHEEL AIR BAG COIL THROTTLE ACT CTRL CLOSE THROTTLE ACT CTRL OPEN THROTTLE POS SENS LOW REF UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE W/ ADAPTIVE CRUISE CONTROL W/O ADAPTIVE CRUISE CONTROL WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

2.0L TURBO 2.5L, 3.6L AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR COMPUTER DATA LINES SYSTEM CRUISE IND DISPLAY GRN/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LOGIC LOW SPD GMLAN SERIAL DATA NCA WIRE OUT SPD SIG POWER SUPPLY TRANSFORMER RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SER DATA (-) (1) TRANSMISSION CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) TRANSMISSION OUTPUT SHAFT SPEED SENSOR UNDERHOOD FUSE BLOCK VIO/GRY WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL/GRN WIRE

1_BU BACKUP LP CTRL BK CAMERA VIDEO SIG BLK WIRE BLK/YEL WIRE BODY CONTROL MODULE BU COAX CAMERA VIDEO SIG COAX COAX BU DISPLAY DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR GRN WIRE GRN/WHT WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSIDE REAR VIEW MIRROR LEFT OF BATTERY) LOGIC MIRROR DIMMING NCA WIRE RED WIRE UNDERHOOD FUSE BLOCK VIDEO DISPLAY INSIDE REAR VIEW MIRROR CAMERA VIO/WHT WIRE WHT WIRE YEL WIRE YEL/WHT WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLU/VIO WIRE BLU/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRN/WHT WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT BACKUP LAMP LEFT INNER TAIL- LAMP LEFT LIFTGATE TAIL LAMP ASSEMBLY LEFT OF BATTERY) LEFT OUTER TAIL LAMP LEFT STOP/ TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LOGIC LOW SPD GMLAN SER DATA NCA WIRE PARK LAMP IND POWER SUPPLY TRANSFORMER RED WIRE RED/GRY WIRE RED/YEL WIRE RIGHT BACKUP LAMP RIGHT INNER TAIL- LAMP RIGHT LIFTGATE TAIL LAMP ASSEMBLY RIGHT OUTER TAIL LAMP RIGHT STOP/ TURN SIGNAL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TURN IND UNDERHOOD FUSE BLOCK VIO/GRY WIRE WHT WIRE

"CHECK ENGINE" IND CTRL ABS IND. ADAPTIVE FRONT AIR BAG IND BATT POST VOLT BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE WARNING IND BRN/BLU WIRE BRN/WHT WIRE CHARGE IND COMPUTER DATA LINES SYSTEM DISPLAY DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAUGE ENGINE OIL PRESSURE ESC IND ESC OFF IND ETHERNET BUS 7 (-) FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE FUEL IND/ LOW FUEL IND GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HIGH BEAM LAMP IND HILL DESCENT CONTROL IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ILLUMINATION IND INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LANE DEPARTURE LED DISPLAY DIMMING CTRL LEFT OF BATTERY) LEFT TURN SIGNAL IND LIGHT IND LIGHTING (AFL) LOGIC LOW SPEED GMLAN SERIAL DATA 2 LOW WASHER FLUID IND CTRL MALFUNCTION IND NAVIGATION SYSTEM OFF IND PARK BRAKE PARK LAMP IND PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW SWITCH RED/GRY WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RIGHT TURN SIGNAL IND RUN/CRANK IGN 1 VOLT SEAT BELT IND SECURITY IND SERVICE PARK BRAKE IND SIG GND LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 SPEEDOMETER TACHOMETER TIRE PRESSURE IND TOW/HALL IND TRACTION CONTROL UNDERHOOD FUSE BLOCK VEHICLE AHEAD IND VIO WIRE VIO/GRY WIRE WARNING IND WHT/GRN WIRE WIPER/WASHER SYSTEM

1-CU 2-CU 2.0L TURBO 3.6L 2.5L AM/FM BATT POST VOLTAGE BATTERY POS VOLT BK COAX BK USB USB SERIAL DATA BLK WIRE BLK/WHT WIRE COAX COAX BU COAX CU COAX OG COAX OG REAR VISION CAMERA COAXIAL VIDEO SIGNAL COMPUTER DATA LINES SYSTEM CRNKSHAFT POSI SENS REPLICATED SIGNAL DISPLAY DISPLAY SIG + ENGINE CONTROL MODULE ETHERNET BUS 4 (-) GRN/BLK WIRE GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HD/XM HOT AT ALL TIMES INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LO SPD GMLAN SER DATA 2 LOGIC LOW SPD GMLAN LR SPEAKER SIG (-) LVDS LVDS GY INFOTAINMENT DISPLAY SIGNAL NCA WIRE POWER SUPPLY TRANSFORMER RADIO RADIO ANTENNA AMPLIFIER RADIO CONTROLS REAR END SPOILER ANTENNA REAR VIEW CAMERA RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE ROOF REAR ANTENNA SERIAL DATA 2 SIG GROUND SIGNAL GROUND UNDERHOOD FUSE BLOCK USB VIO/BLU WIRE W/ DIGITAL AUDIO SYSTEM W/O DIGITAL AUDIO SYSTEM

AUDIO LOW REF MICROPHONE LOW REF AUDIO SIG MICROPHONE SIG BATT POST VOLTAGE BATTERY POST VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/RED WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES DISPLAY DISPLAY SIGNAL (-) ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GRN/BLK WIRE GRN/RED WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE GY LVDS INFOTAINMENT DISP SIG HOT AT ALL TIMES INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT FUSE BLOCK LEFT OF BATTERY) LOGIC LOW SPD GMLAN LR SPEAKER SIG (-) LVDS MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE ORG/RED WIRE POWER SUPPLY TRANSFORMER RADIO RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT MOBILE TELEPHONE MICROPHONE SERIAL DATA 2 SIG GND SYSTEM UNDERHOOD FUSE BLOCK VIO/YEL WIRE W/ ONSTAR W/O ONSTAR

AUDIO LOW REF MICROPHONE LOW REF AUDIO SIG MICROPHONE SIG BACKUP LAMP CTRL BATT POST VOLTAGE BATTERY POST VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES DISPLAY DISPLAY SIGNAL (-) GRN/RED WIRE GRN/WHT WIRE GROUND GRY/GRN WIRE GRY/YEL WIRE GY LVDS INFOTAINMENT DISP SIG HIGH SPEED GMLAN HOT AT ALL TIMES INFO DISPLAY MODULE INFOTAINMENT INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LO SPD GMLAN SER DATA 2 LOGIC LOW SPD GMLAN LVDS MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE ORG/RED WIRE POWER SUPPLY TRANSFORMER RADIO RADIO CONTROLS RADIO PRESETS STEERING WHEEL CONTROLS SWITCH RADIO VOLUME STEERING WHEEL CONTROLS SWITCH RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT MOBILE TELEPHONE MICROPHONE SER DATA (+) 9 SER DATA COMM ENABLE SERIAL DATA 2 SIG GND SYSTEM UNDERHOOD FUSE BLOCK VIO/YEL WIRE W/ ONSTAR W/O ONSTAR WHT/BLU WIRE WHT/GRN WIRE

2.0L TURBO 2.5L 3.6L BATTERY BATTERY SENSOR MODULE BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BODY CONTROL MODULE CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM GMLAN SERIAL DATA - 1 GRN WIRE GRN/BLK WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE VOLT IGNITION MODE SWITCH IGNITION MODE SWITCH SIG 2 KEYLESS ENTRY CONTROL MODULE (RIGHT SIDE OF LUGGAGE COMPT) LEFT OF BATTERY) LOGIC LOW SPD GMLAN SERIAL DATA PASSIVE START SW 2 LOW REF RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE STARTER MOTOR STARTER PINION SOLENOID ACTUATOR RELAY STARTER RELAY UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/GRY WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/VIO WIRE