VCFRONT1_a130 — Autopilot2 eFuse Trip

Full alert identifier: VCFRONT1_a130_autopilot2EFuseTrip

Alert description

The front vehicle controller (VCFRONT) has opened the Low Voltage (LV) power feed circuit (eFuse) to the Autopilot 2 system, interrupting power supply to Autopilot 2.

Potential impact

Autopilot features are unavailable.

Set condition

The Autopilot 2 eFuse High Side Driver (HSD) detects electrical current flow exceeding normal (expected operating) range, causing the Autopilot 2 eFuse circuit to open (trip).

Clear condition

VCFRONT no longer detects the eFuse circuit gating LV power feed to Autopilot 2 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

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
Autopilot 2 E Fuse Current `VCFRONT1_a130_autopilot2EFuseCurrent`	A
Autopilot 2 E Fuse Temp `VCFRONT1_a130_autopilot2EFuseTemp`	degC
Autopilot 2 E Fuse Voltage `VCFRONT1_a130_autopilot2EFuseVoltage`	V

Signal	Unit
Autopilot 2 E Fuse Remaining Retries `VCFRONT1_a130_autopilot2EFuseRemainingRetries`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT1_a130.