DPB_a093 — Ecu Bist Fault Ctr Fault
Full alert identifier: DPB_a093_ecuBistFaultCtrFault
Alert description
Built-In Self Test (BIST) didn't switch off electrically after too much received wrong BIST commands.
Potential impact
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
Set condition
Erroneous safety logic (BIST of system IC does not switch off electrically after too much received wrong BIST commands), The failsafe logic test tests that after 3 wrong BIST commands the BIST alert counter counted up to its max. value and that the BIST state machine switches off electrically consequently.
Clear condition
No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DPB_a093.