Multi-Pin Connectors A, B And C On Rear Of CLIMATRONIC Control Module, 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 -A-

Fig 1: 16-Pin Electrical Connection, T16D, 16-Pin Electrical Connection, T16C And 20-Pin Electrical Connection T20C

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1 - Sunlight Photo Sensor 2 -G134- or Sunlight Photo Sensor -G107-, signal

2 - High Pressure Sensor -G65-

3 - Sunlight Photo Sensor 2 -G134- or Sunlight Photo Sensor -G107-, signal

4 - Air Quality Sensor -G238-

5 - CAN High

6 - CAN Low

9 - + 5V for Sunlight Photo Sensor 2 -G134- or Sunlight Photo Sensor -G107-

10 - Driver Heated Seat Control Module -J131- (optional)

11 - Front Passenger's Heated Seat Control Module -J132- (optional)

12 - Terminal 75 (optional)

13 - Left Vent Temperature Sensor -G150-

14 - Right Vent Temperature Sensor -G151-

16 - Plus connection (15a) in vehicles with auxiliary heater

17 - Sensor signal ground

18 - A/C Compressor Regulator Valve -N280-

19 - Terminal 31

20 - Positive connection (15a) or in vehicles with auxiliary heater positive connection (30a)

16-Pin Harness Connector, In Wiring Diagram T16C -B-

Fig 2: 16-Pin Electrical Connection, T16D, 16-Pin Electrical Connection, T16C And 20-Pin Electrical Connection T20C

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1 - + 5V for control motors

2 - Left Temperature Door Potentiometer/Actuator -G220-

3 - Right Temperature Door Potentiometer/Actuator -G221-

4 - Defroster Door Motor Position Sensor -G135-

5 - Central Door Motor Position Sensor -G112-

7 - Fresh Air/Recirculating Air/Back Pressure Door Motor -V425-

8 - Left Footwell Vent Temperature Sensor -G261-

9 - Right Footwell Vent Temperature Sensor -G262-

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

14 - Signal Ground (GND) potentiometer

16-Pin Harness Connector, In Wiring Diagram T16D -C-

Fig 3: 16-Pin Electrical Connection, T16D, 16-Pin Electrical Connection, T16C And 20-Pin Electrical Connection T20C

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1 - Left Temperature Door Motor -V158-, cold

2 - Left Temperature Door Motor -V158-, warm

3 - Defroster Door Motor -V107-, closed

4 - Defroster Door Motor -V107-, open

5 - Central Air Door Motor -V70-, upper body outlet

6 - Central Air Door Motor -V70-, footwell

9 - Fresh Air/Recirculating Air/Back Pressure Door Motor -V425- (recirculation/partial recirculation)

10 - Fresh Air/Recirculating Air/Back Pressure Door Motor -V425- (recirculation/back pressure)

11 - Right Temperature Door Motor -V159-, cold

12 - Right Temperature Door Motor -V159-, warm

15 - Fresh Air Blower -V2- (PWM activation)

16 - Fresh Air Blower -V2-, return message signal