VOLVO
ECM-P260100 - Coolant Pump "A" Control Circuit Performance/Stuck Off. General Failure Information. No sub type information
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 only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15 only
- Volvo V40 (2013–)2015Engine B4204T11 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11 only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9 only
- Volvo V70 (2008–)2014–2015Engine B4204T11 only
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11 only
What does this fault code mean?
The engine control module (ECM) keeps watch over the coolant pump relay. Even though the code is named stuck off, it means the relay has jammed in the open position. The coolant pump can then run at full speed, which shows up as uneven temperature in the climate control.
Possible causes
- Loose connection or oxidation in the connector housing
- Short circuit between the connections
- Damaged coolant pump relay
What you can do
- 1Check the connector at the relay for loose connections and oxidation
- 2Look for a short circuit between the connections at the relay with a multimeter
- 3If you have a diagnostic tool: activate the coolant pump and see whether it responds
- 4If the fault remains after this check, have a workshop decide whether the coolant pump relay needs replacing
Symptoms you may notice1
- Uneven temperature in the climate control
What the fault can affect1
- The coolant pump runs at full speed
General guidance for car owners. Diagnosis on the car can point to a different cause.