VOLVO
CEM-P046022 - Fuel Level Sensor A Circuit. General Signal Failures. Signal too high
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerV40 (2013–), V40 Cross Country (2013–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
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.
Mulige årsaker
- The fuel level sensor on the right-hand side is shorted to supply voltage
Hva du kan gjøre
- 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
Symptomer du kan merke2
- The trip computer shows a wrong fuel level or range
- The fuel gauge shows too high a value
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