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APS_w261 — Vrm Fault Grp A

Full alert identifier: APS_w261_vrmFaultGrpA

Alert description

APS electronic control unit (ECU) encountered a power fault in vrm controller group A (TRIP/INT rails on 12V architecture, TRIP/INT/GPU on 48V).

Potential impact

Autopilot may be unavailable.

Set condition

Set when a power fault occured in vrm controller group A.

Clear condition

Clear after reboot

Signals to check

These diagnostic fields are associated with APS_w261. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Vrm Public Fault Values APS_sw261_vrmPublicFaultValues —
Vrm Rail 1 Fault Values APS_sw261_vrmRail1FaultValues —
Vrm Rail 2 Fault Values APS_sw261_vrmRail2FaultValues —
Vrm Rail 3 Fault Values APS_sw261_vrmRail3FaultValues —
Vrm Type APS_sw261_vrmType
0
TRIP INT VRM
1
CPU GPU VRM
2
DDR 0V75 1V25 VRM
3
TRIP INT GPU VRM
4
DDR 0V75 1V25 CPU VRM
—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APS_w261.

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