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

AUTOMATIC DIMMING INTERIOR REAR VIEW MIRROR AUTOMATIC HIGH BEAM ASSIST CONTROL MODULE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLU/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CURRENT CODING RESISTANCE 1 FOR LEFT HEADLAMP FOG LAMP BUTTON FOG LAMP INDICATOR LAMP FUSE 11 FUSE 12 FUSE 3 FUSE 9 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL B FUSE PANEL C GRN WIRE GRY WIRE GRY/RED WIRE HEADLAMP SWITCH ILLUMINATION BULB HOT AT ALL TIMES HUMIDITY SENSOR INSTRUMENT CLUSTER CONTROL MODULE INSTRUMENT PANEL, SWITCH ILLUMINATION DIMMER SWITCH LEFT DAYTIME RUNNING LAMP, POSITION LAMP LED MODULE LEFT FRONT FOG LAMP BULB LEFT FRONT HEADLAMP LEFT FRONT SIDE MARKER LAMP BULB LEFT FRONT TURN SIGNAL BULB LEFT HEADLAMP TEMPERATURE SENSOR 1 LEFT HID HEADLAMP BULB LEFT LIGHT CONTROL MODULE LEFT LOW BEAM HEADLAMP REFLECTOR MOTOR LIGHT SWITCH ORG/BRN WIRE PARKING BRAKE INDICATOR LAMP POSITION LAMP INDICATOR LAMP POWER DISTRIBUTION SYSTEM RAIN/LIGHT RECOGNITION SENSOR RED WIRE RED/GRN WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE W/ FPK ACTIVE INFO DISPLAY W/O FPK ACTIVE INFO DISPLAY WHT WIRE WHT/BLK WIRE WINDSHIELD PROJECTION HEAD-UP DISPLAY BUTTON YEL WIRE YEL/BLK WIRE YEL/VIO WIRE

BLK/GRN WIRE BLK/RED WIRE BLU/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CURRENT CODING RESISTANCE 1 FOR RIGHT HEADLAMP ELECTRO- MECHANICAL PARKING BRAKE BUTTON FUSE 11 FUSE PANEL 1 FUSE PANEL F GRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT REAR LEVEL CONTROL SYSTEM SENSOR ORG/BRN WIRE PNK WIRE RED/WHT WIRE RELAY & FUSE CARRIER 2 RIGHT DAYTIME RUNNING LAMP, POSITION LAMP LED MODULE RIGHT FRONT FOG LAMP BULB RIGHT FRONT HEADLAMP RIGHT FRONT SIDE MARKER LAMP BULB RIGHT FRONT TURN SIGNAL BULB RIGHT HEADLAMP TEMPERATURE SENSOR 1 RIGHT HID HEADLAMP BULB RIGHT LIGHT CONTROL MODULE RIGHT LOW BEAM HEADLAMP REFLECTOR MOTOR VIO/BLU WIRE WHT WIRE YEL WIRE YEL/VIO WIRE

AUTOMATIC DIMMING INTERIOR REAR VIEW MIRROR AUTOMATIC HIGH BEAM ASSIST CONTROL MODULE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FOG LAMP BUTTON FOG LAMP INDICATOR LAMP FUSE 11 FUSE 12 FUSE 3 FUSE 5 FUSE 9 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL 5 FUSE PANEL B FUSE PANEL C GRN WIRE GRY WIRE GRY/RED WIRE HEADLAMP SWITCH ILLUMINATION BULB HOT AT ALL TIMES HUMIDITY SENSOR INSTRUMENT CLUSTER CONTROL MODULE INSTRUMENT PANEL, SWITCH ILLUMINATION DIMMER SWITCH LEFT FRONT HEADLAMP LEFT FRONT TURN SIGNAL BULB LEFT LED HEADLAMP POWER OUTPUT MODULE 1 LIGHT SWITCH ORG/BRN WIRE PARKING BRAKE INDICATOR LAMP POSITION LAMP INDICATOR LAMP POWER DISTRIBUTION SYSTEM RAIN/LIGHT RECOGNITION SENSOR REAR FOG LAMP BUTTON REAR FOG LAMP INDICATOR LAMP RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VIO WIRE VIO/GRY WIRE VIO/WHT WIRE W/ FPK ACTIVE INFO DISPLAY W/ LENS W/O FPK ACTIVE INFO DISPLAY W/O LENS WINDSHIELD PROJECTION HEAD-UP DISPLAY BUTTON YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRO- MECHANICAL PARKING BRAKE SWITCH 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/BRN WIRE PNK WIRE RED/BLK WIRE RED/WHT WIRE RELAY & FUSE CARRIER 2 RIGHT FRONT HEADLAMP RIGHT FRONT TURN SIGNAL BULB RIGHT LED HEADLAMP POWER OUTPUT MODULE 1 VIO/GRN WIRE VIO/YEL WIRE W/ LENS W/O LENS YEL/RED WIRE

AUTOMATIC DIMMING INTERIOR REAR VIEW MIRROR AUTOMATIC HIGH BEAM ASSIST CONTROL MODULE BLK/BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FOG LAMP BUTTON FOG LAMP INDICATOR LAMP FUSE 11 FUSE 12 FUSE 13 FUSE 3 FUSE 9 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL 4 FUSE PANEL B FUSE PANEL C GRN WIRE GRY WIRE GRY/RED WIRE HEADLAMP SWITCH ILLUMINATION BULB HOT AT ALL TIMES HOT W/ TERMINAL 15 POWER SUPPLY RELAY ENERGIZED HUMIDITY SENSOR INSTRUMENT CLUSTER CONTROL MODULE INSTRUMENT PANEL, SWITCH ILLUMINATION DIMMER SWITCH LEFT DAYTIME RUNNING LAMP, POSITION LAMP LED MODULE LEFT FRONT HEADLAMP LEFT FRONT TURN SIGNAL BULB LEFT HEADLAMP AUXILIARY FUNCTIONS POWER OUTPUT MODULE LEFT HEADLAMP BEAM ADJUSTMENT MOTOR LEFT HEADLAMP CURRENT CODING RESISTANCE 1 LEFT HEADLAMP CURRENT CODING RESISTANCE 2 LEFT HEADLAMP CURRENT CODING RESISTANCE 3 LEFT HEADLAMP CURRENT CODING RESISTANCE 4 LEFT HEADLAMP FAN LEFT HEADLAMP TEMPERATURE SENSOR 1 LEFT HEADLAMP TEMPERATURE SENSOR 2 LEFT HEADLAMP TEMPERATURE SENSOR 3 LEFT HEADLAMP TEMPERATURE SENSOR 4 LEFT HEADLAMP TEMPERATURE SENSOR 5 LEFT HIGH BEAM HEADLAMP BULB LEFT LED HEADLAMP POWER OUTPUT MODULE 1 LEFT LIGHT CONTROL MODULE LEFT LOW BEAM HEADLAMP BULB LEFT MATRIX HEADLAMP POWER OUTPUT MODULE LEFT STATIONARY CORNERING LAMP LIGHT SWITCH ORG/ WIRE ORG/BRN WIRE ORG/GRN WIRE PARKING BRAKE INDICATOR LAMP POSITION LAMP INDICATOR LAMP POWER DISTRIBUTION SYSTEM RAIN/LIGHT RECOGNITION SENSOR RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY & FUSE CARRIER 1 VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VIO WIRE VIO/WHT WIRE W/ FPK ACTIVE INFO DISPLAY W/O FPK ACTIVE INFO DISPLAY WHT WIRE WHT/BLK WIRE WINDSHIELD PROJECTION HEAD-UP DISPLAY BUTTON YEL WIRE YEL/BLK WIRE YEL/RED WIRE

2.0L TURBO 3.0L TURBO AIR BAG CONTROL MODULE BATTERY BATTERY INTERRUPT IGNITER BATTERY JUMP START TERMINAL BATTERY MONITORING CONTROL MODULE BLK WIRE BLU WIRE BRN WIRE CENTER REAR OF LUGGAGE COMPT) COMPUTER DATA LINES SYSTEM DRIVER VOLUME CONTROL DRIVING, CONVENIENCE FUNCTIONS CONTROL UNIT 1 ELECTRONIC STEERING COLUMN LOCK CONTROL MODULE FROM BOTTOM COUPLING POINT ON LEFT A-PILLAR (DIAGRAM 4 OF 6) FRONT A/C DISPLAY CONTROL HEAD FRONT INFORMATION DISPLAY CONTROL HEAD FUSE 1 FUSE 10 FUSE 11 FUSE 12 FUSE 13 FUSE 14 FUSE 15 FUSE 16 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 FUSE PANEL A GENERATOR, VOLTAGE REGULATOR GRY/RED WIRE INFORMATION ELECTRONICS CONTROL MODULE 1 INSTRUMENT CLUSTER CONTROL MODULE LIGHT SWITCH MAIN FUSE CARRIER MOBILE DEVICE CHARGER 1 N/A POWER STEERING CONTROL MODULE RADIATOR FAN RADIATOR FAN FUSE RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COUPLING POINT IN ENGINE/MOTOR COMPARTMENT STARTER STEERING COLUMN ELECTRONICS CONTROL MODULE SUPPRESSOR TELEPHONE BASEPLATE TO FUSE PANEL A (DIAGRAM 5 OF 6) TO RELAY & FUSE CARRIER 1 (DIAGRAM 2 OF 6) TO RELAY & FUSE CARRIER 2 (DIAGRAM 4 OF 6) TO RELAY & FUSE CARRIER 2 (DIAGRAM 5 OF 6) TO RELAY & FUSE CARRIER 2 (DIAGRAM 6 OF 6) TO RELAY & FUSE CARRIER 5 (DIAGRAM 4 OF 6) USB DISTRIBUTOR VIO/WHT WIRE W/ FPK ACTIVE INFO DISPLAY W/ MULTI-FUNCTION STEERING WHEEL W/O FPK ACTIVE INFO DISPLAY W/O TRAILER HITCH WAGON WINDSHIELD PROJECTION HEAD UP DISPLAY CONTROL MODULE

2.0L TURBO ACCESS/START AUTHORIZATION BUTTON AUTOMATIC TRANSMISSION CONTROL MODULE FUSE BRN WIRE BRN/RED WIRE CIGARETTE LIGHTER CIGARETTE LIGHTER ILLUMINATION BULB COMFORT SYSTEM CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DIGITAL SOUND SYSTEM CONTROL MODULE DIGITAL SOUND SYSTEM FUSE DUAL-CLUTCH TRANSMISSION MECHATRONIC FROM MAIN FUSE CARRIER (DIAGRAM 1 OF 6) FROM RELAY & FUSE CARRIER 2 (DIAGRAM 4 OF 6) FRONT PASSENGER POWER SEAT ADJUSTMENT CIRCUIT BREAKER 1 FRONT PASSENGER SEAT ADJUSTMENT CONTROL HEAD GRN WIRE GRY/BLU WIRE GRY/YEL WIRE N/A ORG/BRN WIRE REAR WINDOW DEFOGGER FUSE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RELAY & FUSE CARRIER 2 RIGHT FRONT SEAT COUPLING STATION SEDAN SOCKET ILLUMINATION BULB TO RELAY & FUSE CARRIER 2 (DIAGRAM 4 OF 6) VEHICLE ELECTRICAL SYSTEM CONTROL MODULE W/ AMPLIFIER W/O MEMORY WAGON WHT/RED WIRE WHT/VIO WIRE YEL/GRN WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BRN WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL MODULE DRIVER EXTERIOR REAR VIEW MIRROR FRONT A/C DISPLAY CONTROL HEAD FRONT PASSENGER DOOR CONTROL MODULE FRONT PASSENGER EXTERIOR REAR VIEW MIRROR FUSE 11 FUSE 14 FUSE 5 FUSE 7 FUSE PANEL 1 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL B FUSE PANEL F GRN WIRE GRN/VIO WIRE HEATER HOT AT ALL TIMES LEFT FRONT DOOR COUPLING POINT MIRRORS SYSTEM ORG/BRN WIRE ORG/GRN WIRE REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER FUSE REAR WINDOW DEFOGGER RELAY REAR WINDOW DEFOGGER SUPPRESSOR REAR WINDOW DEFOGGER SUPPRESSOR 2 RED/VIO WIRE RED/WHT WIRE RELAY & FUSE CARRIER 1 RELAY & FUSE CARRIER 2 RIGHT FRONT DOOR COUPLING POINT SEDAN SEDAN WAGON WAGON WHT WIRE WHT/YEL WIRE WINDSHIELD ANTENNA SUPPRESSION FILTER

AIR BAG CONTROL MODULE AUXILIARY BATTERY (2.0L TURBO HYBRID) (FLOOR OF LUGGAGE COMPT) BATTERY FUSE PANEL BATTERY INTERRUPT IGNITER BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER BELT FORCE LIMITER DRIVER SEAT BELT TENSIONER IGNITER 1 DRIVER THORAX AIR BAG CRASH SENSOR FRONT PASSENGER SIDE PEDESTRIAN PROTECTION CRASH SENSOR 2 FUSE 10 FUSE PANEL 2 FUSE PANEL B GRN WIRE GRN/BLU WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT FRONT DOOR COUPLING POINT LEFT FRONT SEAT BELT LEFT FRONT SEAT BELT TENSIONER CONTROL MODULE ORG/BRN WIRE PASSENGER SEAT BELT RETRACTOR PASSENGER SIDE REAR SEAT BELT TENSIONER IGNITER PEDESTRIAN PROTECTION TRIGGER 1 PEDESTRIAN PROTECTION TRIGGER 2 POWER DISTRIBUTION SYSTEM RED WIRE RELAY & FUSE CARRIER 1 VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

AIR BAG CONTROL MODULE AIR BAG INDICATOR LAMP BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DISPLAY UNIT DRIVER AIR BAG IGNITER DRIVER AIR BAG RELEASE VALVE IGNITER DRIVER KNEE AIR BAG IGNITER FRONT PASSENGER AIR BAG IGNITER 1 FRONT PASSENGER AIR BAG IGNITER 2 FRONT PASSENGER AIR BAG RELEASE VALVE IGNITER FRONT PASSENGER AIR BAG UNIT FRONT PASSENGER BELT FORCE LIMITER FRONT PASSENGER SEAT BELT TENSIONER IGNITER 1 FUSE 9 FUSE PANEL C GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL MODULE NCA WIRE ORG/BRN WIRE PNK/WHT WIRE RED WIRE RED/YEL WIRE RIGHT FRONT SEAT BELT RIGHT FRONT SEAT BELT TENSIONER CONTROL MODULE SPIRAL SPRING STEERING COLUMN ELECTRONICS CONTROL MODULE STEERING COLUMN) VIO WIRE WHT WIRE WHT/RED WIRE YEL WIRE YEL/GRY WIRE