IBST-A156
IBST_a156_supplyOvervoltageLvl1
What does IBST-A156 mean?
Tesla alert code in the Integrated Brake System (IBST) module. The UBB voltage is in overvoltage level1 failure range. System shall be in 'ReducedPerformance' state. CPU exception occurrd. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Offset 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. ECU Bandgap Failure. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Original Description
The UBB voltage is in overvoltage level1 failure range. System shall be in 'ReducedPerformance' state. CPU exception occurrd. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit. Offset 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. ECU Bandgap Failure. ECU internal fault, check wiring to the unit and/or re-flash. If problem continures after several power cycles, reolace unit.
Severity Notes
IBST-A156 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.