VOLVO
BECM-U010000 - Lost communication with Engine Control Module (ECM). 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 control module continuously receives information from several other control modules over HS-CAN. The code is set when communication with the engine control module (ECM) has stopped, and the fault usually lies in the sending module or in the wiring.
Possible causes
- The fault probably lies in the sending control module
- Contact resistance or oxidation in the connectors
- Damaged communication wiring on the CAN network
What you can do
- 1Read and note the fault code, clear it and road test to check whether it returns
- 2Have a workshop read the fault codes in the engine control module and remedy them first
- 3The 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 notice4
- Red warning symbol and message in the display
- Drive modes PURE, SAVE and AWD disengage automatically or cannot be selected
- The combustion engine runs more often than normal in HYBRID mode
- Charging of the high voltage battery stops or works poorly
What the fault can affect2
- The high voltage battery cannot be charged
- Electric propulsion is not possible
General guidance for car owners. Diagnosis on the car can point to a different cause.