IBST-A128
IBST_a128_BLMMuxerTimeoutError
What does IBST-A128 mean?
Tesla alert code in the Integrated Brake System (IBST) module. Timeout occured during BLM init tests. Not completed due to wrong preconditions. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Phase Current 2 out of range high. ECU internal fault, check wiring to the unit and or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
Timeout occured during BLM init tests. Not completed due to wrong preconditions. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Phase Current 2 out of range high. ECU internal fault, check wiring to the unit and or re-flash. If problem continures after several power cycles, reolace unit.
Severity Notes
IBST-A128 is an Alert in the Integrated Brake System system. It is generally safe to continue driving, but have it checked at your next scheduled service.