VOLVO
ECM-P048396 - Fan Performance. Component Failures. Component internal failure
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 B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15, D4204T5 only
- Volvo V40 (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo V70 (2008–)2014–2015Engine B4204T11, D4204T5 only
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, D4204T5 only
What does this fault code mean?
The engine control module (ECM) requests a fan speed from the electric fan control module, which varies the voltage to the fan motor steplessly. The code is set when the fan speed is too low. The fault may be an internal fault in the fan control module, a signal wire shorted to supply voltage or a damaged fan control module.
Possible causes
- Internal fault in the electric fan control module
- The signal wire is short-circuited to supply voltage
- Damaged electric fan control module
What you can do
- 1Check that the fuses for the electric fan are intact. Their location is given in the owner's manual or on the fuse box cover
- 2Look for chafing or pinch damage on the signal wire to the electric fan control module, where it may have touched supply voltage
- 3Use a multimeter to check that the signal wire is not short-circuited to supply voltage
- 4If you have a diagnostic tool, read the fault status with the engine running and see whether the fault is still active
- 5If the fault remains, have a workshop check or replace the electric fan control module
- 6After repair, check that the fault status shows no fault once the diagnosis is complete
Symptoms you may notice3
- The engine overheats or runs hot
- Temperature control or air conditioning does not work
- The temperature becomes uneven
General guidance for car owners. Diagnosis on the car can point to a different cause.