Volkswagen PASSAT - YEAR 2001 Manual page 59

This allows the ambient temperature (G17 and
G89) and the air outlet temperature on the outlet
side of the evaporator to be checked and the
control unit to control compressor shutoff more
precisely. Dehumidification of the vehicle interior
is improved because the air is dried more
quickly. Windscreen fogging is thereby largely
eliminated.
Compressor
251_012
Self-diagnosis
A fault in the temperature sensor is entered in the
control unit's fault memory. The signal from the
sensor can be checked in the self-diagnosis data
block.
The Electrics
59