DI_a025 — Regen Backfill Unavailable

Full alert identifier: DI_a025_regenBackfillUnavailable

Alert description

Regenerative braking (regen) backfill braking torque is unavailable, requiring driver to apply brake pedal more frequently to decelerate / stop.

Potential impact

Drive inverter may not be able to supply the expected deceleration torque normally supplied by regenerative braking (regen) when braking. Driver will need to apply brake pedal more frequently to decelerate and stop.

Set condition

External Brake Request (EBR) or active damping is unavailable.

Clear condition

Braking torque and active damping become available again

Signals to check

These diagnostic fields are associated with DI_a025. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
Backfill State `DI_a025_backfillState` 0 UNAVAILABLE 1 STANDBY 2 ACTIVE	—
Bfill Unavailable Reason `DI_a025_bfillUnavailableReason`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DI_a025.