Model Y

EPASTS_a060 — Am Gdu Fail

Full alert identifier: EPASTS_a060_amGduFail

Alert description

This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. Bootstrap capacitor short detection or GDU internal rail undervoltage check

Potential impact

EPAS full loss of assist.

Set condition

EPAS ECU GDU device monitor detected failure (capacitor short detection or internal rail undervoltage).

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 EPASTS_a060. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
Debug Info `EPASTS_a060_debugInfo`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTS_a060.

EPASTS_a158 — Am Gdu Fail During Recovery EPASTS_a158_amGduFailDuringRecovery This alert is reported when there is a GDU failure during reversible recovery.
EPASTS_a057 — Am Gdu Vds EPASTS_a057_amGduVds This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks the voltage level between the drain/source of each MOSFET in the primary actuator path and reacts if the voltage level is…
EPASTS_a065 — Am Gdu Junc Temp EPASTS_a065_amGduJuncTemp This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU overtemperature.
EPASTS_a055 — Am Extended Gdu Test EPASTS_a055_amExtendedGduTest This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic tests the primary GDU safety monitors to avoid the existence of latent failures.
EPASTS_a147 — Am Dc Link Shorted Fail EPASTS_a147_amDcLinkShortedFail This alert is reported when there is a battery fet failure or DC link capacitor failure. Reported at runtime.

Browse all EPASTS alert codes