IBST-D099
IBST_d099_ecuBmsOnWhileWdTout
Also written as IBST_D099 / IBST D099 / IBST_d099_ecuBmsOnWhileWdTout / ibst_d099_ecubmsonwhilewdtout
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-D099 mean?
Tesla diagnostic code in the Integrated Brake System (IBST) module. The failsafe logic test determines whether the system chip detects a missing watchdog trigger. If there is a missing watchdog trigger, it switches off the gate actuation of the Booster Master Switch. If the feedback does not show that the Booster Master Switch gate is switched off, this fault is set.
Original Description
The failsafe logic test determines whether the system chip detects a missing watchdog trigger. If there is a missing watchdog trigger, it switches off the gate actuation of the Booster Master Switch. If the feedback does not show that the Booster Master Switch gate is switched off, this fault is set.
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: The failsafe logic test determines whether the system chip detects a missing watchdog trigger. If there is a missing wat
- 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-D099 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.