VOLVO
BECM-C106600 - Hybrid/EV Battery Pack Coolant Pump "B" Control Circuit Low. 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 controls the two battery coolant pumps with a variable control signal and monitors them both electrically and by checking the control signal. The fault concerns the control circuit of battery coolant pump B, which shows a low level. Cooling of the battery may be affected.
Possible causes
- Poor contact or oxidation in the connectors
- The control signal cable to pump B is short-circuited to ground or has an open circuit
- The supply cable to pump B is short-circuited to ground or has an open circuit
- The ground lead to pump B is short-circuited to voltage or has an open circuit
- 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
- 2Have a workshop check that the pump connectors are secure and free from corrosion
- 3Have a workshop check the signal, supply and ground wiring to pump B for short circuits and open circuits
- 4Have a workshop with diagnostic equipment check pump B
- 5The 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.