EPASTP_a047 — Epm Vreg Volt Fail
Full alert identifier: EPASTP_a047_epmVregVoltFail
Alert description
This alert is reported by the ExternalPowerManager_A8140x (EPM) component when it detects VREG over and under voltage.
Potential impact
EPAS full loss of assist.
Set condition
EPAS ECU EPM device voltage monitoring failed (VREG over/under-voltage).
Clear condition
EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.
Signals to check
These diagnostic fields are associated with EPASTP_a047. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Debug Info
EPASTP_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTP_a047.