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EPAS3P_a147 — Backup Veh Speed

Full alert identifier: EPAS3P_a147_backupVehSpeed

Alert description

Electronic Power Assist Steering (EPAS) transition to DI vehicle speed source

Potential impact

Electronic Power Assist Steering (EPAS) is in reduced assist state, EAC is inhibited

Set condition

ESP_wheelRotation missing or degraded ESP_wheelSpeedQF or degraded DI_speed backup vehicle speed message

Clear condition

Electronic Power Assist Steering (EPAS) power cycle

Signals to check

These diagnostic fields are associated with EPAS3P_a147. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Transition Reason EPAS3P_a147_transitionReason
0
DATA INTEGRITY
1
WSS FAILURE
2
MIA
—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPAS3P_a147.

Browse all EPAS3P alert codes