VOLVO
CEM-P046015 - Fuel Level Sensor A Circuit. General Electrical Failures. Circuit short to battery or open
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (12)
- Volvo S60 (2011–)2011–2015Engine D4162T only
- Volvo S80 (2007–)2007–2012
- Volvo S80 (2007–)2013All engines except: B5254T12, B5254T14
- Volvo S80 (2007–)2014All engines except: B4204T11, B4204T12, B4204T15, B5254T12, B5254T14, D4204T5
- Volvo S80 (2007–)2015All engines except: B4204T11, B4204T12, B4204T15, D4204T5
- Volvo V60 (2011–)2011–2015Engine D4162T only
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2008–2012
- Volvo V70 (2008–)2013All engines except: B5204T9
- Volvo V70 (2008–)2014–2015All engines except: B4204T11, B5204T9, D4204T5
- Volvo XC60 (2009–)2009–2015
- Volvo XC70 (2008–)2008–2015
What does this fault code mean?
The CEM monitors the direct voltage on the level sensor in the fuel pump. If the signal is broken or shorted to battery voltage, a wrong fuel level is shown and the trip computer may show the tank as empty too early. On flexifuel cars the DC/AC converter can also be the cause.
Possible causes
- Open circuit in the fuel level sensor on the right-hand side, or a short to battery voltage
- The DC/AC converter is not fitted or is faulty, on flexifuel cars
What you can do
- 1Compare the fuel gauge with the trip computer. Does the tank show empty too early, and does the reading change when you refuel?
- 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 earth
- 3With a diagnostic tool, read the fuel level value in live data. A value that does not change when the tank is filled or emptied points to the sensor
- 4Use a multimeter to check that the wire to the fuel level sensor has no break and is not shorted to battery voltage
- 5Check the connectors in the wiring to the fuel pump for corrosion and loose connections, but do not open the fuel system yourself
- 6On flexifuel cars, check that the DC/AC converter is in place and looks undamaged. If it is faulty, have a workshop replace it
Symptoms you may notice2
- The trip computer shows the tank as empty too early
- A wrong fuel level is displayed
What the fault can affect1
- The fuel level is shown as zero
General guidance for car owners. Diagnosis on the car can point to a different cause.