VOLVO
ECM-P018121 - Fuel Temperature Sensor A Circuit Range/Performance. General Signal Failures. Signal too low
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
10 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (31)
- Volvo S60 (2011–)2011–2012Engine B5254T5, B6304T4 only
- Volvo S60 (2011–)2013–2014Engine B5204T8, B5204T9, B5254T12, B5254T14, B6304T4 only
- Volvo S60 (2011–)2015Engine B5204T8, B5204T9, B5254T12, B5254T14, B6304T3, B6304T4, B6304T5 only
- Volvo S80 (2007–)2007–2008Engine B5254T6 only
- Volvo S80 (2007–)2009Engine B5254T6, B5254T8 only
- Volvo S80 (2007–)2010Engine B5254T10, B5254T11, B5254T8, B6304T2, B6324S, B6324S2, B8444S only
- Volvo S80 (2007–)2011Engine B5254T10, B5254T11, B5254T8, B6304T4, B6324S4, B6324S5, B8444S only
- Volvo S80 (2007–)2012Engine B5254T10, B6304T4, B6324S4, B6324S5 only
- Volvo S80 (2007–)2013–2014Engine B5254T12, B5254T14, B6304T4, B6324S4, B6324S5 only
- Volvo S80 (2007–)2015Engine B6304T4, B6324S4, B6324S5 only
- Volvo V40 (2013–)2013–2014Engine B5204T8, B5204T9, B5254T12, B5254T14 only
- Volvo V40 (2013–)2015Engine B5204T8, B5204T9 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B5204T8, B5204T9, B5254T12, B5254T14 only
- Volvo V60 (2011–)2011–2012Engine B6304T4 only
- Volvo V60 (2011–)2013Engine B5204T8, B5204T9, B6304T4 only
- Volvo V60 (2011–)2014Engine B5204T8, B5204T9, B5254T12, B6304T4 only
- Volvo V60 (2011–)2015Engine B5204T9, B5254T12, B6304T3, B6304T4, B6304T5 only
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2008Engine B5254T6 only
- Volvo V70 (2008–)2009Engine B5254T6, B5254T8 only
- Volvo V70 (2008–)2010Engine B5254T10, B5254T11, B6304T2, B6324S, B6324S2 only
- Volvo V70 (2008–)2011Engine B5254T10, B5254T11, B6304T4, B6324S5 only
- Volvo V70 (2008–)2012Engine B5254T10, B6304T4, B6324S5 only
- Volvo V70 (2008–)2013–2014Engine B5204T9, B6304T4, B6324S5 only
- Volvo V70 (2008–)2015Engine B5204T9, B6304T4 only
- Volvo XC60 (2009–)2010Engine B6304T2, B6324S, B6324S2 only
- Volvo XC60 (2009–)2011–2014Engine B6304T4, B6324S4, B6324S5 only
- Volvo XC60 (2009–)2015Engine B5204T9, B5254T12, B5254T14, B6304T4, B6324S4, B6324S5 only
- Volvo XC70 (2008–)2010Engine B6304T2, B6324S, B6324S2 only
- Volvo XC70 (2008–)2011–2015Engine B6304T4, B6324S4, B6324S5 only
- Volvo XC90 (2003–)2011–2014Engine B6324S5 only
What does this fault code mean?
While driving, the engine control module (ECM) compares the signal from the fuel temperature sensor with the intake and engine temperatures. The code is set when the signal deviates too much from the values of the other temperature sensors. The control module then uses a predefined value for the fuel temperature instead of the real one.
Possible causes
- Contact resistance or oxidation in the connections
- Damaged fuel temperature sensor
What you can do
- 1Read the code, clear it and road test the car to see whether it comes back
- 2If you have a diagnostic tool: read the fuel temperature in live data together with the outside and engine temperatures and see whether they agree
- 3Check the connector at the fuel pressure sensor for contact resistance and oxidation; do not use rust solvent spray or grease
- 4If the connector is intact but the fault remains, have a workshop replace the fuel pressure sensor, which contains the temperature sensor
Symptoms you may notice1
- Check engine light (MIL) on
What the fault can affect2
- The control module uses a predefined value for the fuel temperature
- The control module uses the signal from the engine coolant temperature sensor instead
General guidance for car owners. Diagnosis on the car can point to a different cause.