VOLVO
ECM-C1B1173 - Pressure Control Valve. Mechanical Failures. Actuator stuck closed
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 checks the high-pressure fuel system against the expected pressure drop during engine braking. The pressure falls less than expected, because the pressure control valve on the fuel rail is not bringing the pressure down as it should.
Possible causes
- The fuel pressure control valve is damaged or stuck closed
What you can do
- 1Read out the fault code, erase it and road test the car with engine braking to see whether it returns
- 2If you have a diagnostic tool: read the fuel pressure in live data and check whether it drops when the engine brakes
- 3Check that the connector to the pressure control valve is firmly seated and not corroded
- 4Have a workshop check the fuel system with diagnostic equipment and replace the valve if it is damaged or stuck
Symptoms you may notice2
- Unusual noises while driving
- The fault can show up at any time or only at some times
General guidance for car owners. Diagnosis on the car can point to a different cause.