System Diagram

Climatic Heating and A/C Controls, Multi-Pin Harness Connectors

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)

20-pin harness connector, in wiring diagram T20c





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

16-pin harness connector, in wiring diagram T16e





1 Temperature Regulator Door Motor (V68), warm
2 Evaporator Temperature Sensor (G308) or Evaporator Vent Temperature Sensor (G263)
4 Footwell Outlet Temperature Sensor (G192)
5 Temperature Regulator Door Motor Position Sensor (G92)
7 + 5 V for Temperature Regulator Door Motor Position Sensor (G92)
8 Ground for Temperature Regulator Door Motor Position Sensor (G92), Center Outlet Temperature Sensor (G191), Footwell Outlet Temperature Sensor (G192) and Evaporator Temperature Sensor (G308) or Evaporator Vent Temperature Sensor (G263)
9 Recirculation Door Motor ( V113), open
10 Recirculation Door Motor ( V113), close
11 Temperature Regulator Door Motor (V68), cold

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