VCFRONT_a194 — iBooster Retry

Full alert identifier: VCFRONT_a194_iBoosterRetry

Alert description

The electromechanical brake booster (iBooster) eFuse was retried because it tripped (circuit opened) due to inrush current when enabled by the front vehicle controller (VCFRONT).

Potential impact

Braking functionality may be limited.

Set condition

On transition into the ACCESSORY vehicle power state, if the iBooster eFuse tripped (circuit opened) within 1 second of the enable line going high (power applied to the iBooster by the VCFRONT).

Clear condition

Clears automatically.

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a194.

VCFRONT_a132 — iBooster eFuse Trip VCFRONT_a132_iBoosterEFuseTrip The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the electromechanical brake booster (iBooster / IBST) controller, interrupting power supply to the iBooster (IBST).
VCFRONT_a323 — iBooster Overtemp Max VCFRONT_a323_iboosterOvertempMax The front vehicle controller (VCFRONT) detects the electromechanical brake booster (iBooster) eFuse temperature equals or exceeds 100 degrees C.
VCFRONT_a315 — iBooster Overtemp Slope VCFRONT_a315_iboosterOvertempSlope The front vehicle controller (VCFRONT) detects the electromechanical brake booster (iBooster) eFuse temperature value has increased more than 10 degrees C per second.
VCFRONT_a264 — iBooster Voltage Mismatch VCFRONT_a264_iBoosterVoltageMismatch The front vehicle controller (VCFRONT) detects there is voltage mismatch greater than 0.5V between the input power to the VCFRONT and the braking assist circuit for the iBooster (IBST) electronic control unit (ECU).
VCFRONT_a193 — Mcu Audio Retry VCFRONT_a193_mcuAudioRetry The MCU Audio eFuse was retried because it false tripped due to inrush.

Browse all VCFRONT alert codes