VOLVO
ECM-181A - Air conditioning (A/C) pressure sensor. Faulty signal
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS40 (1996–2004), V40 (1996–2004)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The ECM monitors the signal from the air conditioning pressure sensor. If the signal is faulty, too high or too low, the fault code is set. The cause may be too little refrigerant, a leak or a defective A/C pump.
Mulige årsaker
- Signal wire shorted to voltage
- Defective A/C pressure sensor
- Signal wire shorted to ground
- Open circuit in the signal wire
- Incorrect refrigerant level
- Leak in the A/C system
Hva du kan gjøre
- 1Cars without A/C always show this fault code. If your car has no A/C, the code can be ignored
- 2Switch off the ignition and check that the A/C pressure sensor connector is firmly seated and free of oxidation
- 3Check that the A/C system has refrigerant, since a wrong level gives a faulty pressure reading
- 4Check the A/C system for leaks and damage. If the fault remains, have a workshop check the A/C pump and the pressure sensor
Symptomer du kan merke1
- The air conditioning does not work
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