Multi-Pin Connectors On Back Of Climatic Heating And A/C Control, Pin Assignment

Special tools and workshop equipment 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

Fig 1: Identifying 20-pin Harness Connector, T20c

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

3 - Center Outlet Temperature Sensor -G191-

5 - High Pressure Sensor -G65-

7 - CAN Low

8 - CAN High

12 - Right seat heater (optional)

13 - Seat heating (option)

15 - Terminal 75 seat heater (optional)

16 - A/C Compressor Regulator Valve -N280-

18 - Center outlet temperature sensor -G191- ground

19 - Terminal 30A

20 - Terminal 31

16-Pin Harness Connector, in Wiring Diagram T16e

Fig 2: Identifying 16-pin Harness Connector, T16e

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1 - Temperature Regulator Door Motor -V68-, warm

2 - Evaporator Temperature Sensor -G308- or Evaporator Vent Temperature Sensor -G263-

3 - Air distribution door motor position sensor -G645-

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 the front air distribution flap motor position sensor -G92-, the footwell vent temperature sensor -G192- ; the air distribution door motor position sensor -G645- and the 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

12 - Air distribution flap motor -V428-, open

13 - Air distribution flap motor -V428-, closed

5-Pin Harness Connector, in Wiring Diagram T5

Fig 3: Identifying 5-pin Harness Connector T5

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1 - 3rd blower speed

2 - 2nd blower speed

3 - 1st blower speed

4 - 4th blower speed

5 - Terminal X