Heat and Fresh Air Controls, Pin Assignment

Heat and Fresh Air Controls, Pin Assignment

Special tools, testers and auxiliary items required

• Test Box (V.A.G 1598/42)

• Adapter Cable (V.A.G 1598/47)

• Template (1598/47-2)

The 16-pin harness connector is not assigned.

5-pin Harness Connector, in wiring diagram T5






1 3rd blower speed
2 2nd blower speed
3 1st blower speed
4 4th blower speed
5 Terminal X

20-pin Harness Connector, in wiring diagram T20c






1 Potentiometer for engine operating map +5 volt
2 Exit for potentiometer for engine operating map
3 Fresh/Recirculating Air Door Motor (V154)
5 auxiliary heater (vehicle-specific)
6 Fresh/Recirculating Air Door Motor (V154)
7 Auxiliary Air Heater Control Module (J604)
8 Rear window
9 Windshield (vehicle-specific)
10 GND for potentiometer for engine operating map
11 Driver's Heated Seat Control Module (J131)
12 LED rear window
13 Auxiliary heater (vehicle-specific)
14 Auxiliary heater return message (vehicle-specific)
15 Front Passenger's Heated Seat Control Module (J132)
16 Terminal 75 seat heater (optional)
17 Terminal 58d
18 Terminal 30
19 Terminal 15
20 Terminal 31