IBST_a001 — Micro Supply Error
Full alert identifier: IBST_a001_microSupplyError
Message shown in the car
Power braking assist reduced Braking may require increased effort
Alert description
iBooster (IBST) voltage monitor has detected a failure of the microcontroller supply voltage. Condition is an electronic control unit (ECU) internal error.
Potential impact
IBST may not operate as expected.
Set condition
Voltage monitor detects a failure of the microcontroller supply voltage.
Clear condition
iBooster can not recover from this condition. iBooster replacement may be required.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of IBST_a001.