VOLVO
ECM-P072800 - Engine Speed Input Circuit Intermittent. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS60 (2011–), S80 (2007–), V70 (2008–)
Show models by year and engine (9)
- Volvo S60 (2011–)2011–2012Engine B5254T5 only
- Volvo S80 (2007–)2007–2008Engine B5254T6 only
- Volvo S80 (2007–)2009Engine B5254T6, B5254T8 only
- Volvo S80 (2007–)2010–2011Engine B5254T10, B5254T11, B5254T8 only
- Volvo S80 (2007–)2012Engine B5254T10 only
- Volvo V70 (2008–)2008Engine B5254T6 only
- Volvo V70 (2008–)2009Engine B5254T6, B5254T8 only
- Volvo V70 (2008–)2010–2011Engine B5254T10, B5254T11 only
- Volvo V70 (2008–)2012Engine B5254T10 only
What does this fault code mean?
The fault is intermittent, that is sporadic, and it does not need to be present right now. The engine control module compares the speed from the speed sensor with the speed from the camshaft sensor. If the speed sensor value is lower, this is treated as a fault.
Possible causes
- Open circuit in the signal or ground lead
- Signal wire short-circuited to ground or supply voltage
- Contact resistance in the connections
- Damaged engine speed sensor
- Damaged carrier plate
What you can do
- 1Read and clear the fault code, and test-drive to see whether it returns
- 2Look at the connectors at the speed sensor for loose contacts, oxidation and chafing
- 3Use a multimeter to check that the signal and ground leads are not broken, with the connectors disconnected
- 4Check that the signal wire has no contact with ground or voltage, with the connectors disconnected
- 5If the fault remains, have a workshop check the speed sensor and the carrier plate at the flywheel
Symptoms you may notice2
- Starter spins, yet the engine will not start
- Engine stops
What the fault can affect1
- If the camshaft sensor has been adapted, the control module uses its signal instead
General guidance for car owners. Diagnosis on the car can point to a different cause.