Audi A4 B9 facelift (2019-2024) relay & fuse carrier 1 Wiring diagrams

BLU/GRY WIRE BLU/VIO WIRE BOTTOM COUPLING POINT ON LEFT A-PILLAR BRN WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL MODULE (DRIVER FRONT DOOR) DRIVER EXIT WARNING LAMP DRIVER SIDE DOOR AMBIENT LIGHTING LAMP DRIVER SIDE DOOR SPEAKER TRIM LAMP DRIVER SIDE ENTRY LAMP DRIVER SIDE REAR ENTRY LAMP DRIVER SIDE SILL PANEL STRIP AMBIENT LIGHTING LAMP FUSE 15 FUSE PANEL 2 FUSE PANEL B GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT DOOR STORAGE COMPARTMENT ILLUMINATION LAMP LEFT FRONT DOOR AMBIENT LIGHTING BULB 1 LEFT FRONT DOOR CONTOUR ILLUMINATION LAMP LEFT FRONT FOOTWELL LAMP ORG/BRN WIRE ORG/GRN WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RELAY & FUSE CARRIER 1 RIGHT FRONT FOOTWELL LAMP VIO/RED WIRE VIO/YEL WIRE W/ AUXILIARY LAMPS YEL/GRN WIRE

AUTOMATIC DIMMING INTERIOR REAR VIEW MIRROR AUTOMATIC INTERIOR LIGHT SWITCH BUTTON BLU WIRE BLU/VIO WIRE BRN WIRE BRN/YEL WIRE CENTER REAR INTERIOR LAMP EMERGENCY CALL BUTTON (IF EQUIPPED) FRONT INTERIOR LAMP BUTTON FRONT PASSENGER VANITY MIRROR LAMP FRONT PASSENGER VANITY MIRROR LAMP CONTACT SWITCH FRONT ROOF MODULE FUSE 11 FUSE 14 FUSE 3 FUSE 5 FUSE 7 FUSE 8 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL B GARAGE DOOR OPENER CONTROL HEAD GARAGE DOOR OPENER CONTROL MODULE GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT READING LAMP LEFT FRONT READING LAMP BUTTON LEFT REAR READING LAMP LEFT REAR READING LAMP SWITCH PASSENGER SIDE REAR DOOR AMBIENT LIGHTING LAMP PASSENGER SIDE REAR ENTRY LAMP PASSENGER SIDE REAR EXIT WARNING LAMP REAR READING LAMP FRONT BUTTON REAR ROOF FUNCTION BUTTON RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RELAY & FUSE CARRIER 1 RIGHT FRONT READING LAMP RIGHT FRONT READING LAMP BUTTON RIGHT REAR DOOR AMBIENT LIGHTING BULB 1 RIGHT REAR DOOR CONTOUR ILLUMINATION LAMP RIGHT REAR DOOR COUPLING POINT RIGHT REAR DOOR STORAGE COMPARTMENT ILLUMINATION LAMP RIGHT REAR READING LAMP RIGHT REAR READING LAMP SWITCH ROAD SIDE ASSISTANCE BUTTON ROOF ELECTRONICS CONTROL MODULE VIO/RED WIRE VIO/YEL WIRE W/ AUXILIARY LAMPS W/ PANORAMA SUNROOF WHT WIRE YEL WIRE

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

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

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

BRN WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE FUSE 1 FUSE 2 FUSE PANEL FUSE PANEL 4 FUSE PANEL B GRN/RED WIRE HOT AT ALL TIMES HOT W/ TERMINAL 15 POWER SUPPLY RELAY ENERGIZED LEFT WINDSHIELD DEFOGGER RELAY NCA WIRE REAR OF ENGINE COMPT) RED/BLK WIRE RED/GRY WIRE RELAY & FUSE CARRIER 1 RELAY & FUSE CARRIER 2 RELAY & FUSE CARRIER 5 RIGHT WINDSHIELD DEFOGGER RELAY VIO/GRY WIRE WHT/BLU WIRE WHT/YEL WIRE WINDSHIELD DEFOGGER WINDSHIELD DEFOGGER RELAY YEL WIRE

BLK/YEL WIRE BRN WIRE BULB COMPUTER DATA LINES SYSTEM COUPLING POINT ON INSTRUMENT PANEL EMERGENCY FLASHER BUTTON FUSE 2 FUSE 7 FUSE PANEL 3 FUSE PANEL 4 FUSE PANEL B GLOVE COMPARTMENT LAMP GLOVE COMPARTMENT LAMP SWITCH GLOVE COMPARTMENT WIRING HARNESS COUPLING POINT GRY/BLU WIRE HOT AT ALL TIMES ILLUMINATION INDICATOR INSTRUMENT CLUSTER OPERATION BUTTON LAMP LEFT INSTRUMENT PANEL VENT ILLUMINATION BULB LEFT VENT ILLUMINATION LAMP POWER DISTRIBUTION SYSTEM RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RELAY & FUSE CARRIER 1 RIGHT INSTRUMENT PANEL VENT ILLUMINATION BULB RIGHT VENT ILLUMINATION LAMP SWITCH VALET PARKING LOCK BUTTON VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VIO/WHT WIRE VIO/YEL WIRE YEL WIRE YEL/WHT WIRE

2.0L TURBO 3.0L TURBO ABS CONTROL MODULE ABS CONTROL MODULE FUSE 1 ABS CONTROL MODULE FUSE 2 AIR BAG CONTROL MODULE ALARM HORN ANTI-THEFT ALARM SYSTEM SENSOR BLK WIRE BLK/GRN WIRE BRN WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE COUPLING POINT ON ROOF DATA BUS ON BOARD DIAGNOSTIC INTERFACE DIAGNOSTIC CONNECTION DRIVER DOOR CONTROL MODULE DRIVER MULTI- CONTOUR SEAT CONTROL MODULE DRIVER POWER SEAT ADJUSTMENT CIRCUIT BREAKER 1 DRIVER SEAT ADJUSTMENT CONTROL HEAD DRIVER SEAT BACKREST COUPLING POINT ELECTRO- MECHANICAL PARKING BRAKE BUTTON EMERGENCY CALL MODULE, COMMUNICATION UNIT CONTROL MODULE ENGINE COMPONENT POWER SUPPLY RELAY ENGINE/ MOTOR CONTROL MODULE FROM FUSE 11 (DIAGRAM 2 OF 6) FROM MAIN FUSE CARRIER (DIAGRAM 1 OF 6) FROM RELAY & FUSE CARRIER 1 (DIAGRAM 2 OF 6) FRONT PASSENGER DOOR CONTROL MODULE FRONT ROOF MODULE 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 2 FUSE PANEL 3 FUSE PANEL B LEFT FRONT DOOR COUPLING POINT LEFT FRONT LUMBAR SUPPORT ADJUSTMENT SWITCH LEFT FRONT SEAT COUPLING STATION MEMORY SEAT/ STEERING COLUMN ADJUSTMENT CONTROL MODULE MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY N/A RAIN/LIGHT RECOGNITION SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RELAY & FUSE CARRIER 1 RIGHT FRONT DOOR COUPLING POINT SELECTOR LEVER SUNROOF CONTROL MODULE TERMINAL 15 POWER SUPPLY RELAY TO FUSE 12 (DIAGRAM 2 OF 6) TO RELAY & FUSE CARRIER 1 (DIAGRAM 2 OF 6) TO RELAY & FUSE CARRIER 1 (DIAGRAM 3 OF 6) TO RELAY & FUSE CARRIER 1 (DIAGRAM 4 OF 6) USED) VEHICLE ELECTRICAL SYSTEM CONTROL MODULE VIO WIRE W/ INTERIOR MONITORING W/ MEMORY W/O MEMORY WAGON WHT WIRE WIPER MOTOR CONTROL MODULE

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