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:
Introduction
This chapter contains information on the following subjects:
→ Preparing the vehicle for working in the engine compartment
→ Opening and closing the bonnet
Always park the vehicle on a level and stable surface before carrying out any
work in the engine compartment.
The engine ...
Starting the engine
First read and observe the introductory information
and safety warnings
The steps should only be carried out in the specified order.
Step
Vehicles with a manual gearbox
Vehicles with an automatic gearbox
1.
...
Warning lamp
First read and observe the introductory information
and safety warnings
Lit up
Possible cause
Solution
Fault in the alternator.
Go to a qualified workshop. The electrical system should
be checked.
Switch off all electrical ...
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A/C Pressure Switch -F129
A/C Pressure/Temperature Sensor -G395