996 Carrera Group 0 Part 2 Diagnosis / PAGE 139
5. Instrument cluster · The instrumentcluster provides the following
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5. Instrument cluster
The instrumentcluster provides the following
system parameters for control of the heater/air-
conditioningsystem:
Outside temperature
(measured below the bumper)
Coolanttemperature
Vehicle speed
Engine speed
Time since the ignition was switched off
6. Electric fan with ballast resistor
Fan to cool the condenser.
The ballast resistor reduces the fan speed
in the first stage.
7. Air-conditioning compressor
The air-conditioningcompressor sucks
the gaseous refrigerant from the evaporator
and compresses the refrigerant.
8. Condenser
The compressed refrigerant is cooled down
in the condenser.
SO-DB 80 01 Diagnosis/troubleshooting, heating
99680Dl Printed in Germany -11, 1998
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