IBST_a089 — Rotor Sin Out Of Range High
Full alert identifier: IBST_a089_rotorSinOutOfRangeHigh
Message shown in the car
Power braking assist reduced Braking may require increased effort
Alert description
iBooster (IBST) detected Rotation Position Sensor (RPS) Sin+ or Sin-signal too high.
Potential impact
IBST may not operate as expected.
Set condition
IBST detected RPS Sin+ or Sin- signal too high.
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_a089.