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Climatronic - passenger compartment > < Connectors on Climatronic control unitJ255
Pin assignment for multi-pin connectors A, B and C on back of Climatronic control unitJ255
Pin assignment for multi-pin connectors A, B and C on back of Climatronic control unit -J255-
Special tools and workshop equipment required
t  Test box -V.A.G 1598/42-
   
t  Adapter cable -V.A.G 1598/47-
t  Template -1598/47-2-
  W00-10003
20-pin connector, T20c in current flow diagram -A-
1 - Sunlight penetration photosensor 2 -G134- or sunlight penetration photosensor -G107-, signal
2 - High-pressure sender -G65-
3 - Sunlight penetration photosensor 2 -G134- or sunlight penetration photosensor -G107-, signal
4 - From calendar week 45/2007: air quality sensor -G238-, signal
5 - CAN, high
6 - CAN, low
9 - + 5 V for sunlight penetration photosensor 2 -G134- or sunlight penetration photosensor -G107-
10 - Heated driver seat control unit -J131- (optional)
11 - Heated front passenger seat control unit -J132- (optional)
12 - Terminal 75 (optional)
13 - Left vent temperature sender -G150-
14 - Right vent temperature sender -G151-
16 - Positive connection (15a) or positive connection (30a) for vehicles with supplementary heating and air quality sensor -G238-
17 - Signal earth of senders
18 - Air conditioning system compressor regulating valve -N280-
19 - Terminal 31
20 - Positive connection (15a) or positive connection (30a) for vehicles with supplementary heating.
  N87-10001
16-pin connector, T16c in current flow diagram -B-
1 - + 5V for control motors
2 - Potentiometer for left temperature flap control motor -G220-
3 - Potentiometer for right temperature flap control motor -G221-
4 - Potentiometer for defroster flap control motor -G135-
5 - Potentiometer for centre flap control motor -G112-
6 - Vehicles up to calendar week 17/2007: potentiometer for air recirculation flap control motor -G143-. Vehicles from calendar week 18/2007: potentiometer for air recirculation flap control motor -G143- was discontinued.
7 - Vehicles up to calendar week 17/2007: potentiometer for air flow flap control motor -G113-. Vehicles from calendar week 18/2007: Potentiometer for fresh air/recirculated air, air flow flap control motor -G644-.
8 - Left footwell vent temperature sender -G261-
9 - Right footwell vent temperature sender -G262-
10 - Fresh air intake duct temperature sensor -G89- only installed up to December 2005
11 - Evaporator temperature sensor -G308- or evaporator output temperature sender -G263-
14 - Signal earth, potentiometer
  N87-10001
16-pin connector, T16d in current flow diagram -C-
1 - Left temperature flap control motor -V158-, cold
2 - Left temperature flap control motor -V158-, warm
3 - Defroster flap control motor -V107-, closed
4 - Defroster flap control motor -V107-, open
5 - Central flap control motor -V70-, chest
6 - Central flap control motor -V70-, footwell
7 - Vehicles up to week 17/07: air recirculation flap control motor -V113-, recirculated air mode actuation. From calendar week 18/2007: air recirculation flap control motor -V113- was discontinued.
8 - Vehicles up to calendar week 17/2007: air recirculation flap control motor -V113-, fresh air actuated. From calendar week 18/2007: air recirculation flap control motor -V113- was discontinued.
9 - Vehicles up to calendar week 17/2007: air flow flap control motor -V71- open. From week 18/07: fresh air/recirculated air, air flow flap control motor -V425- (recirculated air mode/partial air recirculation)
10 - Vehicles up to calendar week 17/2007: air flow flap control motor -V71- closed. From week 18/07: fresh air/recirculated air, air flow flap control motor -V425- (recirculated air mode/ram air)
11 - Right temperature flap control motor -V159-, cold
12 - Right temperature flap control motor -V159-, warm
15 - Fresh air blower -V2- (PWM actuated)
16 - Fresh air blower -V2-, feedback signal
  N87-10001

Climatronic - passenger compartment > < Connectors on Climatronic control unitJ255