VOLVO
ECM-P145C4B - Fan System Component Error A. System Internal Failures. Over temperature
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) monitors the engine cooling system and sets the code when the electric cooling fan is overheated. The causes are that the ECM's power stage overheats when the resistance towards the battery is too low, without a full short circuit, or that the electric cooling fan control module is damaged.
Possible causes
- The ECM's power stage overheats when the resistance towards the battery is too low, without a full short circuit
- Damaged electric cooling fan control module
What you can do
- 1Check the coolant level when the engine is cold.
- 2Check that the fuses for the electric cooling fan are intact. The locations are in the owner's manual or on the fuse box cover.
- 3Have a workshop check the electric cooling fan control module and the power circuit of the engine control module, as this needs measurements and a damaged module must be replaced.
Symptoms you may notice1
- The engine overheats or runs hot
General guidance for car owners. Diagnosis on the car can point to a different cause.