VOLVO
CEM-4A37 - Fuel level sensor. Short-circuit to supply voltage or open-circuit
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. The fault is set if the connection to the sensor has a break, or if the sensor is shorted to supply voltage. The fuel level is then set to zero.
Mulige årsaker
- An open circuit in the wire to the pump side sensor
- The sensor on the pump side is shorted to supply voltage
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 to the sensor has no break or short to supply voltage
- 3If code CEM-4A33 is also stored, use a multimeter to check that the ground wire has no break
- 4If the wires are intact, have a workshop replace the sensor, since it sits in the tank
- 5After 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.