VOLVO
ECM-P155500 - Cylinder 5 Injector 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:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (6)
- Volvo S80 (2007–)2007–2009Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2008–2009Engine D5244T4, D5244T5 only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The engine control module (ECM) monitors the signal to the injection valve for cylinder 5. The code is set when the signal to that valve is incorrect.
Possible causes
- Contact resistance or corrosion in the connectors
- Open circuit in the signal wire
- With fault code ECM-P120512: the signal wire is shorted to voltage, or the injection valve is damaged
- With fault code ECM-P120511: a short between the signal wires, or the signal wire is shorted to ground
What you can do
- 1Cylinder 5 is the fifth cylinder counted from the right-hand side of the vehicle, with cylinder 1 furthest from the flywheel.
- 2Check that the fuses are intact. Their location is in the owner's manual or on the fuse box cover.
- 3Check the connector to the cylinder 5 injection valve for contact resistance and corrosion.
- 4With the ignition off, use a multimeter to check that the signal wire to the cylinder 5 valve has no break and no contact with ground or voltage.
- 5If the fault remains, have a workshop check the cylinder 5 injection valve and its control.
Symptoms you may notice1
- The engine may be hard to start, or not start at all, and this may be noticeable all the time or only now and then
What the fault can affect1
- Injection from cylinder 5 stops
General guidance for car owners. Diagnosis on the car can point to a different cause.