Volkswagen 2004 Jetta, Introduction Manual

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Electrical System
Climatic System
The Climatic system manages the interior
of the vehicle as one climate zone. The
Climatic air conditioner has a combined
fresh air/recirculating door that, like the
temperature control door, is driven by a
control motor. The Climatic system uses a
flexible shaft to control the position of the
air distribution doors. Temperature requests
are relayed to the control module by a
potentiometer in the rotary switch. The
requested temperature setting is achieved
by adjusting the position of the temperature
door.
Interface with the Air Conditioner
The various components of the Climatic
system and the heating system are divided
into two units: an electronic front unit and a
mechanical rear unit that is controlled by a
flexible shaft. The heater is controlled by a
bowden cable. The air conditioner is
serviced similarly to other vehicles.
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