VOLVO
CEM-P046022 - Fuel Level Sensor A Circuit. General Signal Failures. Signal too high
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleV40 (2013–), V40 Cross Country (2013–)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
The signal reaching the CEM is too high, because the sensor is shorted to supply voltage. The fuel gauge can then show too high a level, and the trip computer calculates the remaining range wrongly. The code does not say more precisely what type of fault it is.
Możliwe przyczyny
- The fuel level sensor on the right-hand side is shorted to supply voltage
Co możesz zrobić
- 1Note whether the fuel gauge shows full even though you know it is not. Does it help to drive a short distance?
- 2Check the fuel pump and level sensor fuses in the engine bay and the CEM. If one has blown, check its circuit for a short to supply
- 3With a diagnostic tool, read the fuel level value in live data and see whether it changes as fuel is added or used
- 4Use a multimeter to check that the wire to the fuel level sensor has no contact with supply voltage
- 5Check the connectors in the wiring for loose connections and corrosion. Do not open the fuel system yourself
- 6Replacing the sensor or pump is for a workshop, since the fuel system is flammable
Objawy, które możesz zauważyć2
- The trip computer shows a wrong fuel level or range
- The fuel gauge shows too high a value
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.