Skip to content

BMS_a178 — SW Uncontrolled Regen Pwr B

Full alert identifier: BMS_a178_SW_Uncontrolled_Regen_PwrB

Message shown in the car

Unable to drive PULL OVER SAFELY

Alert description

The Battery Management System (BMS) has detected an uncontrolled regen event in track mode.

Potential impact

Inability to charge, drive, or support the Low Voltage (LV) system

Set condition

The BMS detects that regen power is above the maximum threshold.

Clear condition

The BMS detects that regen power is within the limit 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
Di Power BMS_a178_diPower kW
Energy Error BMS_a178_energyError kJ
Max Power Error BMS_a178_maxPowerError kW
Min Power Error BMS_a178_minPowerError kW
Power Error BMS_a178_powerError kW
Signal Unit
Di Mia Count BMS_a178_diMiaCount —
Di Sna Count BMS_a178_diSnaCount —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a178.

Browse all BMS alert codes