IBST-D189
IBST_d189_diffStrokeRange
Also written as IBST_D189 / IBST D189 / IBST_d189_diffStrokeRange / ibst_d189_diffstrokerange
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-D189 mean?
Tesla diagnostic code in the Integrated Brake System (IBST) module. The calculated movement between the valve body and input rod has exceeded the limits. Only the negative differential strokes are monitored and checked. This could indicate a mechanical malfunction of the plunger or boost body.
Original Description
The calculated movement between the valve body and input rod has exceeded the limits. Only the negative differential strokes are monitored and checked. This could indicate a mechanical malfunction of the plunger or boost body.
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: The calculated movement between the valve body and input rod has exceeded the limits. Only the negative differential str
- 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-D189 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.