VOLVO
BECM-P0B6A00 - Hybrid/EV Battery Voltage Sense "J" Circuit Low. General Failure Information. No sub type information
System
Batteristyring (BECM)
Volvo-modeller feilkoden gjelder for
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1 modellV60 (2011–)
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Hva betyr feilkoden?
The BECM monitors the voltage across the battery cells in the high voltage battery. The code is set when the voltage in cell monitoring J is too low. The cause may be incorrect charging, for example from an external cable, with the combustion engine running or through brake energy recovery, or a damaged battery.
Mulige årsaker
- Incorrect charging from the external charging cable, where the fault may lie in the on-board charger (OBC)
- Incorrect charging with the combustion engine running, where the fault may lie in the engine control module (ECM) or the high voltage generator (IGM)
- Incorrect charging through brake energy recovery, where the fault may lie in the electric rear axle (IEM)
- The high voltage battery is damaged
Hva du kan gjøre
- 1Read and note the fault code, clear it and road test to check whether it returns
- 2Has the car recently been charged from an external cable or driven with heavy brake energy recovery?
- 3Have a workshop read the fault codes in the charger, the engine control module, the high voltage generator and the electric rear axle
- 4Have a workshop with diagnostic equipment check cell monitoring J in the high voltage battery
- 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
Symptomer du kan merke4
- Red warning symbol and message in the display
- Charging of the high voltage battery stops or works poorly
- Drive modes PURE, SAVE and AWD disengage automatically or cannot be selected
- The combustion engine runs more often than normal in HYBRID mode
Hva feilen kan påvirke2
- The high voltage battery cannot be charged
- Electric propulsion is not possible
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