VOLVO
CEM-4A38 - Fuel level sensor. Short-circuit to ground
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Hva betyr feilkoden?
The CEM keeps watching the pump side sensor in the tank. If the sensor is shorted to ground, the code is set. The trip computer then shows an empty tank too early, and the fuel gauge may show zero.
Mulige årsaker
- The sensor on the pump side is shorted to ground
Hva du kan gjøre
- 1With the ignition off, unplug CEM connector D. Check that the connectors are seated and not corroded
- 2Use a multimeter to check that the signal wire is not shorted to ground
- 3If the wire is intact, have a workshop replace the sensor, since it sits in the tank
- 4After the work, clear the code and check that the fuel gauge shows the correct level
Symptomer du kan merke2
- The trip computer shows an empty tank too early
- The fuel gauge reads zero although the tank holds fuel
Hva feilen kan påvirke1
- The fuel level is set to zero
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.