Multi-Pin Connector Assignment on Rear of Heater and A/C Controls, From 25 May 2008

Multi-Pin Connector Assignment on Rear of Heater and A/C Controls, From 25 May 2008

Special tools, testers and auxiliary items required

• Test Box (V.A.G 1598/42)

• Adapter Cable (V.A.G 1598/47)

• Template (V.A.G 1598/47-2)

20-Pin Harness Connector, T20b






3 Center Outlet Temperature Sensor (G191)
5 High Pressure Sensor (G65)
7 CAN bus low
8 CAN bus high
12 Right seat heater (optional)
13 Left seat heater (optional)
15 Terminal 75 seat heater (optional)
16 A/C Compressor Regulator Valve (N280)
18 Center Outlet Temperature Sensor (G191)
19 Terminal 30A
20 Terminal 31

16-Pin Harness Connector, T16j






1 Temperature Regulator Door Motor (V68) , warm
2 Evaporator Vent Temperature Sensor (G263) or Evaporator Temperature Sensor (G308)
3 Air Distribution Door Motor Position Sensor (G645)
4 Footwell Outlet Temperature Sensor (G192)
5 Temperature Regulator Door Motor Position Sensor (G92)
7 + 5 volt for Temperature Regulator Door Motor Position Sensor (G92) and Air Distribution Door Motor Position Sensor (G645)
8 Ground for Footwell Outlet Temperature Sensor (G192) , Temperature Regulator Door Motor Position Sensor (G92) , Evaporator Vent Temperature Sensor (G263) or Evaporator Temperature Sensor (G308) and Air Distribution Door Motor Position Sensor (G645)
9 Fresh/Recirculating Air Door Motor (V154) , open
10 Fresh/Recirculating Air Door Motor (V154) , closed
11 Temperature Regulator Door Motor (V68) , cold
12 Air Distribution Door Motor (V428) , open
13 Air Distribution Door Motor (V428) , closed

5-Pin Harness Connector T5r






1 3rd blower speed
2 2nd blower speed
3 1st Blower speed
4 4th blower speed
5 Terminal X and depending on the vehicle equipment level Auxiliary Heater Operation Relay (J485)