AIR CONDITIONING – Audi A4 2004 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Audi A4 2004

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Audi A4 2004:

• (behind left kick panel) g44
• (left center of fire- wall) g12
• 13a
• 150a
• 25a
• 26a
• 44a
• A/c compressor regulator valve
• A/c control head
• Acc
• Computer data lines system
• Defogger system
• Driver's seat heater
• Fresh air blower control module (behind right end of dash)
• Fuse 10a
• Fuse 30a
• Fuse 5a
• Fuse holder (left end of dash)
• G33 (behind right side of dash)
• Hot at all times
• Hot in run or start
• Ignition/ starter switch
• Left vent temperature sensor (behind left end of dash, in air duct)
• Main fuse (at battery positive terminal)
• Off
• Passenger's seat heater
• Red
• Right vent temperature sensor (behind right end of dash, in air duct)
• Run
• Seats system
• Solar cells (if equipped)
• Start
• W/ rear heated seats

Automatic A/C Wiring Diagram (2 of 2) for Audi A4 2004

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Audi A4 2004:

• (left center of firewall) g12
• Air conditioning controls
• Air flow flap motor/ position sensor
• Air quality sensor (right rear of eng compt)
• Airbag spiral spring/ return spring w/ slip ring
• Central air flap motor/ position sensor
• Computer data lines system
• Defroster flap motor/ position sensor
• Evaporator vent temperature sensor (behind right end of dash)
• Fresh air intake duct temperature sensor (behind right end of dash)
• G33 (w/o conv) (behind right side of dash)
• G49 (w/ conv) (behind left side of dash)
• Heated front window
• High pressure sensor
• Left footwell vent temperature sensor (below center of dash)
• Left temperature flap actuator/ potentiometer
• Recirculation flap motor/ position sensor
• Red
• Right footwell vent temperature sensor (below center of dash)
• Right temperature flap actuator/ potentiometer
• Steering column electronic systems control module (at top of steering column)
• Steering wheel control unit
• Sunlight photo sensor (on top center of dash)
• T16a
• Windshield heating voltage converter (if equipped)