Audi A4 B9 facelift (2019-2024) humidity sensor Wiring diagrams

AIR DISTRIBUTION DOOR MOTOR BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM COUPLING POINT ON ROOF DEFROSTER DOOR MOTOR DISPLAY UNIT DRIVER SIDE SEAT VENTILATION SWITCH EVAPORATOR VENT TEMPERATURE SENSOR FRESH AIR DOOR MOTOR FRONT A/C DISPLAY CONTROL HEAD FRONT PASSENGER SIDE SEAT VENTILATION SWITCH 2 FUSE 12 FUSE 6 FUSE PANEL 2 FUSE PANEL B FUSE PANEL C GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HUMIDITY SENSOR INSTRUMENT CLUSTER CONTROL MODULE LEFT FOOTWELL VENT TEMPERATURE SENSOR LEFT SEAT HEATING BUTTON ORG/BRN WIRE POWER DISTRIBUTION SYSTEM RAIN/LIGHT RECOGNITION SENSOR RECIRCULATION DOOR MOTOR RED WIRE RED/BRN WIRE RELAY & FUSE CARRIER 1 RIGHT FOOTWELL VENT TEMPERATURE SENSOR RIGHT SEAT HEATING BUTTON TEMPERATURE CONTROL DOOR MOTOR VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

BLK WIRE BLK/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM COUPLING POINT ON ROOF DEFROSTER DOOR MOTOR DRIVER SIDE SEAT VENTILATION SWITCH FRESH AIR DOOR MOTOR FRONT A/C DISPLAY CONTROL HEAD FRONT PASSENGER SIDE SEAT VENTILATION SWITCH 2 FUSE 12 FUSE 6 FUSE PANEL 2 FUSE PANEL B FUSE PANEL C GRN/YEL WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HUMIDITY SENSOR LEFT SEAT HEATING BUTTON LEFT SIDE VENT MOTOR LEFT TEMPERATURE CONTROL DOOR MOTOR ORG/BLK WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/WHT WIRE POWER DISTRIBUTION SYSTEM RAIN/LIGHT RECOGNITION SENSOR REAR AIR DISTRIBUTION DOOR MOTOR REAR TEMPERATURE CONTROL DOOR MOTOR RECIRCULATION DOOR MOTOR RED WIRE RED/BRN WIRE RELAY & FUSE CARRIER 1 RIGHT SEAT HEATING BUTTON RIGHT SIDE VENT MOTOR RIGHT TEMPERATURE CONTROL DOOR MOTOR VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE

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 BLK/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 12 FUSE 3 FUSE 9 FUSE PANEL 2 FUSE PANEL 3 FUSE PANEL B GRN WIRE GRY WIRE HOT AT ALL TIMES HUMIDITY SENSOR LEFT DAYTIME RUNNING LAMP, POSITION LAMP LED MODULE LEFT FRONT HEADLAMP LEFT FRONT TURN SIGNAL BULB LEFT HEADLAMP AUXILIARY FUNCTIONS POWER OUTPUT MODULE LEFT LED HEADLAMP POWER OUTPUT MODULE 1 LEFT LIGHT CONTROL MODULE LEFT MATRIX HEADLAMP POWER OUTPUT MODULE LEFT STATIONARY CORNERING LAMP ORG/BRN WIRE 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/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE W/ HID W/O HID W/ MATRIX BEAM W/O HID, MATRIX BEAM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT 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

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