20-pin connector, designated on the diagram as T20c
- 3 - Central deflector temperature sensor "G191"
- 5 - High pressure sensor "G65"
- 7 - CAN Low Bus
- 8 - CAN High Bus
- 12 - Right seat heating (optional)
- 13 - Left seat heating (optional)
- 15 - Terminal 75 for connecting seat heating (optional)
- 16 - Air conditioning compressor regulating valve "N₂80"
- 19 - Terminal 30A
- 20 - Terminal 31
16-pin connector, designated on the diagram as T16e
- 1 - Temperature control flap actuator motor "V68", temperature increase
- 2 - Evaporator temperature sensor "G308" or evaporator outlet air temperature sensor "G263"
- 4 - Footwell air duct temperature sensor "G192"
- 5 - Potentiometer of the actuator motor of the temperature control flap "G92"
- 7 - + 5 V for the potentiometer of the actuator motor of the temperature control flap "G92"
- 8 - Ground for temperature control flap actuator motor potentiometer "G92", central air duct temperature sensor "G191", footwell air duct temperature sensor "G192" and evaporator temperature sensor "G308" or evaporator outlet air temperature sensor "G263"
- 9 - Recirculation flap actuator "V113", opening
- 10 - Recirculation flap actuator "V113", closing
- 11 - Temperature control flap actuator "V68", temperature reduction
- 16 - +5V
5-pin connector, designated on the diagram as T5
- 1 - 3rd fan speed
- 2 - 2nd fan speed
- 3 - 1st fan speed
- 4 - 4th fan speed
- 5 - Terminal X
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