IBST-A087
IBST_a087_rotorSinOutOfRangeLow
Also written as IBST_A087 / IBST A087 / IBST_a087_rotorSinOutOfRangeLow / ibst_a087_rotorsinoutofrangelow
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does IBST-A087 mean?
Tesla alert code in the Integrated Brake System (IBST) module. Rotation Position Sensor Sin+ or Sin-signal too low Linear Position Sensor 5Volt Supply Undervoltage caused by 12V Undervoltage
Original Description
Rotation Position Sensor Sin+ or Sin-signal too low Linear Position Sensor 5Volt Supply Undervoltage caused by 12V Undervoltage
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: Rotation Position Sensor Sin+ or Sin-signal too low Linear Position Sensor 5Volt Supply Undervoltage caused by 12V Under
- No noticeable change in braking performance under normal driving
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Monitor over the next few drives
- 3 Schedule service if the alert reappears
Severity Notes
IBST-A087 is an Alert in the Integrated Brake System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.