Porsche P-80 2005, Руководство пользователя

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Page 3.16
Climate Control Systems Diagnosis & Repair
Sports Cars System
Fresh Air Intake Temperature Sensor
The fresh air intake temperature sensor supplies a signal
for outside temperature to the A/C Control Unit. The
sensor is mounted in the air distribution housing on the
right side. It is in the fresh air intake near the recirculation
flap.
The A/C Control Unit compares the values from both the
ambient temperature sensor and the fresh air intake
sensor and uses the lower of the two inputs for the
ambient temperature value.
Ambient Temperature Sensor
The ambient temperature sensor supplies an analog signal
for outside air temperature to the A/C Control Unit. The
sensor is mounted in the front of the vehicle on the right
side.
Notes:
Interior Temperature Sensor – Sports Cars Up To M.Y.
2004
The interior temperature sensor sends a signal to the A/C
Control Unit for interior temperature. Interior temperature
is sensed and compared with the target temperature
requested by the passengers, and also ambient tempera-
tures. This comparison influences outlet temperatures and
blower speed. The control unit will command a higher
blower speed or temperature flap position if there is a
large difference between the two temperatures.
The sensor is located on the right side of the dash. The
sensor is integral with the interior sensor blower. The
blower draws the passenger compartment air past the
sensor for improved accuracy.
Interior Temperature Sensor – Sports Cars M.Y. 2005 -
on
The interior temperature sensor which is integrated in the
middle of the A/C Control Unit (behind the slotted cover)
ensures that the automatic air conditioning control system
responds to temperature changes with a substantially
greater degree of precision. In order to avoid measuring
errors resulting from heating-up of the control panel area,
the interior air is extracted over the sensor by way of a
micro fan.