IBST-D028
IBST_d028_ecuWdErrCntContErr
Also written as IBST_D028 / IBST D028 / IBST_d028_ecuWdErrCntContErr / ibst_d028_ecuwderrcntconterr
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-D028 mean?
Tesla diagnostic code in the Integrated Brake System (IBST) module. The system Instrument Cluster (IC) watchdog fault counter exceeded its limits or does not increase when sending the wrong messages. After the fail safe logic test, the watchdog data comparator of the system chip is tested cyclically. It is monitored so that the error counter does not exceed the maximum value. The presence of this alert indicates the watchdog data comparator of the system chip is erroneous or the system chip has detected the wrong watchdog triggers, causing the error counter to exceed the limit.
Original Description
The system Instrument Cluster (IC) watchdog fault counter exceeded its limits or does not increase when sending the wrong messages. After the fail safe logic test, the watchdog data comparator of the system chip is tested cyclically. It is monitored so that the error counter does not exceed the maximum value. The presence of this alert indicates the watchdog data comparator of the system chip is erroneous or the system chip has detected the wrong watchdog triggers, causing the error counter to exceed the limit.
Affected Tesla Models
What You May Notice
- Integrated Brake System alert: The system Instrument Cluster (IC) watchdog fault counter exceeded its limits or does not increase when sending the wron
- 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-D028 is a diagnostic or informational code in the Integrated Brake System system. Typically no immediate action is required.