VCFRONT_a131 — Epas3s eFuse Trip

Full alert identifier: VCFRONT_a131_epas3sEFuseTrip

Alert description

The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the secondary electronic power steering controller (EPAS3S), interrupting power supply to EPAS3P.

Potential impact

Power steering functionality may be limited or unavailable.

Set condition

VCFRONT detects the eFuse circuit gating low voltage (LV) power feed to EPAS3S as open (tripped).

Clear condition

VCFRONT no longer detects the eFuse circuit gating low voltage (LV) power feed to EPAS3S as open (tripped) after a retry or sleep cycle, or the vehicle enters a state where the eFuse is expected to be open (off).

Signals to check

These diagnostic fields are associated with VCFRONT_a131. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Epas 3 S E Fuse Current `VCFRONT_a131_epas3sEFuseCurrent`	A
Epas 3 S E Fuse Temp `VCFRONT_a131_epas3sEFuseTemp`	degC
Epas 3 S E Fuse Voltage `VCFRONT_a131_epas3sEFuseVoltage`	V

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a131.