VOLVO
BECM-C106700 - Hybrid/EV Battery Pack Coolant Pump "B" Control Performance. General Failure Information. No sub type information
System
Battery Energy Control Module (BECM)
Volvo models this fault code applies to
Applies to the following models:
1 modelV60 (2011–)
Show models by year and engine (2)
What does this fault code mean?
The BECM checks whether the control signal to battery coolant pump B is reasonable for the pump's operation. The fault is a performance fault: the control signal lies outside the normal range. It may come from the pump itself or from the cooling around it, such as a coolant level that is too low or air in the system.
Possible causes
- Poor contact or oxidation in the connectors
- Coolant level too low
- Air in the battery cooling loop
- Battery coolant pump B is damaged
What you can do
- 1Read and note the fault code, clear it and road test to check whether it returns
- 2Make sure the coolant level is high enough and top up if needed
- 3Have a workshop check that the pump connectors are secure and free from corrosion
- 4Have a workshop bleed the cooling loop if there is air in the system
- 5Have a workshop with diagnostic equipment check pump B
- 6The high voltage system should only be handled by qualified personnel, so have a workshop carry out all work on the battery and other high voltage parts
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.