Chevrolet Blazer III (2018-2023) power supply transformer Wiring diagrams

AIR INLET DOOR ACTUATOR BATT POS BLK WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT OF BATTERY) LOGIC MOST SERIAL DATA (+) POWER SUPPLY TRANSFORMER RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR SPLY UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRY WIRE VOLT VOLT 1 WHT WIRE WHT/GRY WIRE WHT/PNK WIRE YEL/GRN WIRE

AIR INLET DOOR ACTUATOR BATT POS BLK WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT OF BATTERY) LOGIC MOST SERIAL DATA (+) POWER SUPPLY TRANSFORMER RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR SPLY UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRY WIRE VOLT VOLT 1 WHT WIRE WHT/GRY WIRE WHT/PNK WIRE YEL/GRN 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

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

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

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

7-PIN 4-PIN BACKUP LAMPS CIRCUIT BACKUP LP CTRL BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (UNDER CENTER OF INSTRUMENT PANEL, NEAR FLOOR) BRN WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/WHT WIRE GRY WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (FRONT RIGHT SIDE OF CENTER CONSOLE) LEFT TRAILER STOP/ TURN SIGNAL LAMP RELAY LH TRLR TURN SIG LP ORG/ WIRE POWER SUPPLY TRANSFORMER PRK LAMP RLY CTRL REAR BODY FUSE BLOCK RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RH TRLR TURN SIG LP RIGHT TRAILER STOP/ TURN SIGNAL LAMP RELAY TRAILER BACKUP LAMPS RELAY TRAILER BRAKE PROVISION TRAILER CONNECTOR TRAILER PARK LAMPS RELAY TRLR BRK APPLY SIG VIO WIRE W/ TRAILER PROVISION WHT WIRE WHT/BLU WIRE YEL WIRE YEL/GRY WIRE