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IBST_a055 — UB6 Supply Path Fault

Full alert identifier: IBST_a055_UB6SupplyPathFault

Message shown in the car

Power braking assist reduced Braking may require increased effort

Alert description

iBooster (IBST) detected high ohmic UB6 path (a large deviation between UB6 & UBB during motor actuation).

Potential impact

IBST may not operate as expected.

Set condition

IBST detects a high ohmic UB6 path.

Clear condition

iBooster can not recover from this condition. iBooster replacement may be required.

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of IBST_a055.

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