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BMS_f101 — HW BMB Over Temperature

Full alert identifier: BMS_f101_HW_BMB_Over_Temperature

Message shown in the car

Vehicle systems too hot PULL OVER SAFELY

Alert description

A battery monitoring board (BMB) reports to the battery management system (BMS) that it is overheating.

Potential impact

Inability to charge, drive, or support the low voltage (LV) system

Set condition

A BMB reports a temperature above the maximum threshold.

Clear condition

The BMB reports a temperature below the maximum threshold.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal Unit
Ts1t BMS_a101_TS1T C
Ts2t BMS_a101_TS2T C
Active Cooling Target BMS_a101_activeCoolingTarget C
Coolant Inlet T BMS_a101_coolantInletT C
Max Brick T BMS_a101_maxBrickT C
Signal Unit
BM Balert Reg BMS_a101_BMBalertReg
0
OT1
1
OT2
—
Bmb ID BMS_a101_bmbID
31
SNA
—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_f101.

Browse all BMS alert codes