VOLVO
ECM-P03B400 - Cylinder 4 Fuel Pressure Sensor Circuit Range/Performance. 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 engine control module (ECM) compares the pressures from the pressure sensors in the four injectors. The fault is set when the sensor for cylinder 4 shows a different value from the other three.
Possible causes
- Pressure sensor in the injector for cylinder 4 is faulty
What you can do
- 1If you have a diagnostic tool, read the pressure from the injector for cylinder 4 and check that it lines up with the others with the engine running
- 2Check the connection to the injector for cylinder 4 for loose contacts and oxidation
- 3Look at the wire to the injector for cylinder 4 for chafing and pinching
- 4Read and clear the fault code, road test the car and see whether the fault returns
- 5If the fault remains, have a workshop trace the pressure sensor in the injector for cylinder 4
Symptoms you may notice1
- The Check engine (malfunction indicator) light comes on or behaves abnormally
General guidance for car owners. Diagnosis on the car can point to a different cause.