DPB_a256 — Valve Relay Actuation Fault
Full alert identifier: DPB_a256_valveRelayActuationFault
Alert description
Feedback of VRG actuation ot plausible.
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
State of VRG Status via SPI does not fit to logical switch state, Check for palusibility between target switch state of the valve relay and its internal actuation state.
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_a256.