VCLEFT_a479_LVBMS_ECPA_NotClosed
Connector on low voltage battery is not secured
What does the VCLEFT_a479_LVBMS_ECPA_NotClosed alert mean?
The low voltage battery management system (LVBMS) is reporting the low voltage (LV) battery's electronic connector position assurance (E-CPA) is not secure, which could result in the LV battery becoming disconnected from the rest of the vehicle electrical systems. This could occur due to the E-CPA locking tab not being fully pushed down, or communication issues between the LVBMS and vehicle controller.
What you'll see in your Tesla
- Connector on low voltage battery is not secured
- Push or slide locking mechanism until secured
What triggers it
The LVBMS is not communicating as expected with the vehicle controller (MIA) or reports the LV battery's E-CPA is not closed.
When it clears
The LVBMS is communicating as expected with the vehicle controller (not MIA) and reports the LV battery's E-CPA is closed.
Potential impact
The LV battery may become (or may already be) disconnected from the rest of the vehicle electrical systems, which would make the LV battery unable to support vehicle electrical systems or to recharge via the power conversion system (PCS).
Affected models
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