VOLVO
ECM-P018700 - Fuel Temperature Sensor "B" Circuit Low. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
8 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (8)
- Volvo S60 (2011–)2014–2015Engine D4204T5 only
- Volvo S80 (2007–)2014–2015Engine D4204T5 only
- Volvo V40 (2013–)2015Engine D4204T14 only
- Volvo V40 Cross Country (2013–)2015Engine D4204T14 only
- Volvo V60 (2011–)2014–2015Engine D4204T5 only
- Volvo V70 (2008–)2014–2015Engine D4204T5 only
- Volvo XC60 (2009–)2014–2015Engine D4204T5 only
- Volvo XC70 (2008–)2014–2015Engine D4204T5 only
What does this fault code mean?
The control module (ECM) receives the temperature from each injector over LIN communication and compares the values with a lowest permitted value. The code is set when the temperature from the injector on cylinder 2 falls below that lowest permitted value. The causes are a poor connection or a damaged injector.
Possible causes
- Loose or oxidised connection to the injector
- Damaged injector on cylinder 2
What you can do
- 1If there are codes for missing or faulty communication with the injectors, fix those first, as this code is then a follow-on fault
- 2Check the injector connectors, especially on cylinder 2, for looseness and oxidation
- 3If you have a diagnostic tool: read the temperature from each injector in live data and see whether cylinder 2 is low compared with the others
- 4Clear the code and run the engine to see whether it returns
- 5If the fault remains after these checks, the injector on cylinder 2 has to be replaced, which is a workshop job
Symptoms you may notice1
- No noticeable symptoms for the driver
What the fault can affect1
- The control module uses the temperature from one of the other injectors instead
General guidance for car owners. Diagnosis on the car can point to a different cause.