Volkswagen Polo Service & Repair Manual: High Pressure Sensor -G65
 Note
| For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit. |
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| This High Pressure Sensor -G65- is installed in place of an
A/C Pressure Switch -F129-. |
| The high-pressure sensor generates a square-wave signal or a
data telegram when voltage is applied. This signal changes along
with pressure in the system. |
| The downstream control modules (coolant fan control module,
ECM), Front A/C Display Control Head -E87- or Climatronic
Control Module -J255-, etc.) use this signal to calculate
pressure in the refrigerant circuit and to activate the coolant
fans and motor and A/C Clutch -N25- or to change the A/C
Compressor Regulator Valve -N280- activation. |
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Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
...
Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
...
Other materials:
Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant employed is tetrafluoroethane R134a, which
bo ...
Introduction
This chapter contains information on the following subjects:
→ Seat covers
→ Cleaning cloth seat covers, fabric trim and Alcantara upholstery
→ Cleaning and caring for natural leather covers
→ Cleaning leatherette upholstery
→ Cleaning stowage compart ...
Refrigerant Circuit
A/C System Repair Information
An A/C system made for refrigerant R12 must not be filled
with refrigerant R134a without making modifications to the
refrigerant circuit. Refer to
→ Chapter „Refrigerant Circuit, Converting R12 to R134a and
Ser ...
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A/C Pressure Switch -F129
A/C Pressure/Temperature Sensor -G395