Audi A4 B9 facelift (2019-2024) computer data lines system Wiring diagrams

AUTOMATIC DIMMING (IF EQUIPPED) AUTOMATIC DIMMING INTERIOR REAR VIEW MIRROR AUTOMATIC HIGH BEAM ASSIST CONTROL MODULE BLK WIRE BLK/GRY WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COUPLING POINT ON ROOF DRIVER DOOR CONTROL MODULE DRIVER EXTERIOR REAR VIEW MIRROR FRONT PASSENGER DOOR CONTROL MODULE FUSE 1 FUSE 12 FUSE 14 FUSE 5 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL 4 FUSE PANEL B GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT W/ TERMINAL 15 POWER SUPPLY RELAY ENERGIZED HUMIDITY SENSOR LEFT FRONT DOOR COUPLING POINT LIGHT RECOGNITION SENSOR ORG/BRN WIRE ORG/GRN WIRE RAIN/LIGHT RECOGNITION SENSOR RED WIRE RED/VIO WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 RIGHT FRONT DOOR COUPLING POINT SUNLIGHT PHOTO SENSOR VIO/RED WIRE VIO/WHT WIRE W/ HIGH BEAM ASSIST W/O HIGH BEAM ASSIST YEL WIRE

BLK/BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRO- MECHANICAL PARKING BRAKE BUTTON FUSE 11 FUSE PANEL 1 FUSE PANEL F GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT REAR LEVEL CONTROL SYSTEM SENSOR ORG/ WIRE ORG/BRN WIRE PNK WIRE RED/WHT WIRE RED/YEL WIRE RELAY & FUSE CARRIER 2 RIGHT DAYTIME RUNNING LAMP, POSITION LAMP LED MODULE RIGHT FRONT HEADLAMP RIGHT FRONT TURN SIGNAL BULB RIGHT HEADLAMP AUXILIARY FUNCTIONS POWER OUTPUT MODULE RIGHT HEADLAMP BEAM ADJUSTMENT MOTOR RIGHT HEADLAMP CURRENT CODING RESISTANCE 1 RIGHT HEADLAMP CURRENT CODING RESISTANCE 2 RIGHT HEADLAMP CURRENT CODING RESISTANCE 3 RIGHT HEADLAMP CURRENT CODING RESISTANCE 4 RIGHT HEADLAMP FAN RIGHT HEADLAMP TEMPERATURE SENSOR 1 RIGHT HEADLAMP TEMPERATURE SENSOR 2 RIGHT HEADLAMP TEMPERATURE SENSOR 3 RIGHT HEADLAMP TEMPERATURE SENSOR 4 RIGHT HEADLAMP TEMPERATURE SENSOR 5 RIGHT HIGH BEAM HEADLAMP BULB RIGHT LED HEADLAMP POWER OUTPUT MODULE 1 RIGHT LIGHT CONTROL MODULE RIGHT LOW BEAM HEADLAMP BULB RIGHT MATRIX HEADLAMP POWER OUTPUT MODULE RIGHT STATIONARY CORNERING LAMP VIO/GRN WIRE VIO/YEL WIRE WHT WIRE YEL/RED WIRE

BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 10 FUSE PANEL 3 FUSE PANEL B GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT WASHER NOZZLE HEATER ORG/BRN WIRE RED WIRE RED/GRY WIRE RELAY & FUSE CARRIER 1 RIGHT WASHER NOZZLE HEATER VEHICLE ELECTRICAL SYSTEM CONTROL MODULE WHT WIRE YEL WIRE YEL/WHT WIRE

ADJUSTMENT MOTOR ADJUSTMENT MOTOR 2 AUTOMATIC DIMMING (IF EQUIPPED) BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL MODULE DRIVER EXTERIOR REAR VIEW MIRROR DRIVER SEAT BUTTON DRIVER SEAT MEMORY SETTINGS CONTROL HEAD FOLDING MOTOR FUSE 5 FUSE PANEL 3 FUSE PANEL B GRN WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEATER HORIZONTAL HOT AT ALL TIMES LANE CHANGE LEFT FRONT DOOR COUPLING POINT MEMORY SEAT POSITION 1 BUTTON MEMORY SEAT POSITION 2 BUTTON NAVIGATION SYSTEM ORG/BRN WIRE ORG/GRN WIRE PNK WIRE RED WIRE RED/VIO WIRE RELAY & FUSE CARRIER 1 TURN SIGNAL VERTICAL WHT WIRE WHT/YEL WIRE YEL WIRE

ADJUSTING SWITCH ADJUSTMENT BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM FOLDING MOTOR FRONT PASSENGER DOOR CONTROL MODULE FRONT PASSENGER EXTERIOR REAR VIEW MIRROR FUSE 14 FUSE PANEL 2 FUSE PANEL B GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HEATER HORIZONTAL HOT AT ALL TIMES LANE CHANGE MIRROR ADJUSTING SWITCH MOTOR MOTOR 2 NAVIGATION SYSTEM ORG/BRN WIRE ORG/GRN WIRE PNK WIRE RED WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 RIGHT FRONT DOOR COUPLING POINT SELECTOR SWITCH TURN SIGNAL VERTICAL WHT WIRE WHT/YEL WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/BLK WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER BACKREST ADJUSTMENT MOTOR DRIVER DOOR CONTROL MODULE DRIVER POWER SEAT ADJUSTMENT CIRCUIT BREAKER 1 DRIVER SEAT ADJUSTMENT CONTROL HEAD DRIVER SEAT ANGLE ADJUSTMENT MOTOR DRIVER SEAT FORWARD/BACK ADJUSTMENT MOTOR/SENSOR DRIVER SEAT HEIGHT ADJUSTMENT MOTOR DRIVER SEAT MEMORY BUTTON FUSE 5 FUSE PANEL 3 GRY WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT DOOR COUPLING POINT LEFT FRONT SEAT COUPLING STATION MEMORY SEAT POSITION 1 BUTTON MEMORY SEAT POSITION 2 BUTTON MEMORY SEAT/ STEERING COLUMN ADJUSTMENT CONTROL MODULE ORG/BRN WIRE ORG/GRN WIRE RED WIRE RED/BLK WIRE RED/VIO WIRE RELAY & FUSE CARRIER 1 VIO WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ADJUSTMENT AUTOMATIC DIMMING (IF EQUIPPED) BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL MODULE DRIVER EXTERIOR REAR VIEW MIRROR FOLDING MOTOR FUSE 5 FUSE PANEL 3 FUSE PANEL B GRN WIRE GRY/WHT WIRE HEATER HOT AT ALL TIMES LANE CHANGE LEFT FRONT DOOR COUPLING POINT MOTOR MOTOR 2 NAVIGATION SYSTEM ORG/BRN WIRE ORG/GRN WIRE PNK WIRE RED WIRE RED/VIO WIRE RELAY & FUSE CARRIER 1 TURN SIGNAL WHT WIRE YEL WIRE

ADJUSTING SWITCH ADJUSTMENT BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM FOLDING MOTOR FRONT PASSENGER DOOR CONTROL MODULE FRONT PASSENGER EXTERIOR REAR VIEW MIRROR FUSE 14 FUSE PANEL 2 FUSE PANEL B GRN WIRE GRY/WHT WIRE HEATER HOT AT ALL TIMES LANE CHANGE MIRROR ADJUSTING SWITCH MOTOR MOTOR 2 NAVIGATION SYSTEM ORG/BRN WIRE ORG/GRN WIRE PNK WIRE RED WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 RIGHT FRONT DOOR COUPLING POINT SELECTOR SWITCH TURN SIGNAL WHT WIRE YEL WIRE

BLK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/BLU WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM COUPLING POINT ON ROOF FUSE 10 FUSE 12 FUSE 14 FUSE 2 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL 4 FUSE PANEL B FUSE PANEL C GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/WHT WIRE HEADLAMP WASHER SYSTEM PUMP HOT AT ALL TIMES HOT W/ TERMINAL 15 POWER SUPPLY RELAY ENERGIZED HUMIDITY SENSOR INSTRUMENT CLUSTER SYSTEM ORG/ WIRE ORG/BRN WIRE PNK WIRE RAIN/LIGHT RECOGNITION SENSOR REAR WINDOW WIPER MOTOR (WAGON) RED WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 STEERING COLUMN ELECTRONICS CONTROL MODULE STEERING COLUMN) VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VIO WIRE VIO/WHT WIRE WHT WIRE WHT/VIO WIRE WINDSHIELD WASHER FLUID LEVEL SENSOR WINDSHIELD WASHER PUMP WINDSHIELD WIPER INTERMITTENT MODE SWITCH WINDSHIELD WIPER MOTOR WINDSHIELD WIPER SWITCH WIPER MOTOR CONTROL MODULE

BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CHARGE AIR PRESSURE SENSOR COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM ENGINE/MOTOR CONTROL MODULE FUEL PUMP AFTER-RUN PRESSURE SWITCH FUEL TANK COUPLING POINT FUEL TANK LEAK DETECTION CONTROL MODULE FUSE 8 FUSE PANEL 3 FUSE PANEL F GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE GRY/WHT WIRE HEATER HOT AT ALL TIMES LEFT ELECTROHYDRAULIC ENGINE MOUNT SOLENOID VALVE OXYGEN SENSOR OXYGEN SENSOR 1 AFTER CATALYTIC CONVERTER PNK WIRE RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE RELAY & FUSE CARRIER 2 RIGHT ELECTROHYDRAULIC ENGINE MOUNT SOLENOID VALVE TANK VENTILATION PRESSURE SENSOR 1 VIO WIRE VIO/GRY WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/VIO WIRE