Skip to content

EPAS3P_a155 — Backup Eac Active

Full alert identifier: EPAS3P_a155_backupEacActive

Alert description

Electric Power Assisted Steering (EPAS) reports its secondary Electronic Control Unit (ECU) activated External Angle Control (EAC).

Potential impact

Backup EAC is active due to a detected condition on the primary steering ECU.

Set condition

The EPAS secondary ECU activates EAC due to a condition affecting the primary ECU.

Clear condition

Vehicle completes a power cycle. The alert will remain present for the remainder of the current drive cycle.

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
Vehicle Speed EPAS3P_a155_vehicleSpeed kph

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPAS3P_a155.

Browse all EPAS3P alert codes