Pin Assignment, Climatic Control Unit, Through May 27, 2011

Special tools and workshop equipment required

Test Box -V.A.G 1598/42-
Test Adapter -V.A.G 1598/47-
Template -1598/47-2-

Fig 1: Identifying 20-Pin Harness Connector, T20C

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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 - 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

Fig 2: Identifying 16-Pin Harness Connector, T16E

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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-

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 door 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 door motor -V428-, open

13 - Air distribution door motor -V428-, closed

Fig 3: Identifying 5-Pin Harness Connector T5

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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