BMS family
BMS_a086_SW_FC_Contactor_Mismatch
Not Available
What does the BMS_a086_SW_FC_Contactor_Mismatch alert mean?
The battery management system (BMS) detects a mismatch between actual and commanded fast charge (FC) contactor set state.
What you'll see in your Tesla
- Not Available
What triggers it
High voltage processor (HVP) comms are ok and fast charge contactors were closed and fast charge contactors are now open / opening and BMS_fcContactorRequest has remained closed.
When it clears
HVP_fcContactorSetState is correct for the current BMS_fcContactorRequest.
Potential impact
DC charging is terminated.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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