VCFRONT_a344 — Pcs Fast Trip Slope

Full alert identifier: VCFRONT_a344_pcsFastTripSlope

Alert description

The front vehicle controller (VCFRONT) detects the electrical current flowing through the power conversion system (PCS) eFuse has equaled or exceeded a current slope value (rate of change) of 120A per millisecond.

Potential impact

The eFuse circuit may open (trip), interrupting low voltage power supply to the PCS. This could make PCS functions limited or unavailable, and could interrupt precharging of the high voltage (HV) bus .

Set condition

The PCS eFuse current slope value equals or exceeds 120A per millisecond.

Clear condition

The PCS eFuse current slope value is below 120A per millisecond.

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
Avg Current `VCFRONT_a344_avgCurrent`	A
Max Current `VCFRONT_a344_maxCurrent`	A
Max Slope `VCFRONT_a344_maxSlope`	A/ms

Signal	Unit
Vehicle State `VCFRONT_a344_vehicleState` 0 OFF 1 CONDITIONING 2 ACCESSORY 3 DRIVE	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a344.

Browse all VCFRONT alert codes