VOLVO
ECM-P155184 - Cylinder 1 Injector Circuit Range/Performance. Bus Signal / Message Failures. Signal below allowable range
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) drives the injection valve for cylinder 1 through internal output stages and sets the code when it detects a fault in that control. The fault may be caused by contact resistance and corrosion at the valve connector, or by the valve being clogged or leaking.
Possible causes
- Contact resistance and corrosion in the injection valve connector
- The injection valve is clogged or leaking
What you can do
- 1Cylinder 1 is the one furthest from the flywheel, counted from the right-hand side of the vehicle.
- 2Check the connector to the cylinder 1 injection valve for contact resistance and corrosion.
- 3With the ignition off, disconnect the connector and check that the contact surfaces are clean and undamaged.
- 4With the ignition off, use a multimeter to check that the signal wire to the valve has no break and no contact with ground (the body).
- 5If you have a diagnostic tool, activate the cylinder 1 injection valve with the engine running and listen for it working.
- 6If nothing is found in these checks, the fault may lie in the engine control module, so have a workshop check it.
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.