DIF-A249
DIF_a249_highStatorTempFromResist
Also written as DIF_A249 / DIF A249 / DIF_a249_highStatorTempFromResist / dif_a249_highstatortempfromresist
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 DIF-A249 mean?
Tesla alert code in the Drive Inverter Front (DIF) module. High estimated stator temperature from resistance Drive Inverter Warning: Phase B gate driver Fault occurred at phase B gate drive. See payload signal for reason of trigger. Drive Inverter Warning: Firmware assertion
Original Description
High estimated stator temperature from resistance Drive Inverter Warning: Phase B gate driver Fault occurred at phase B gate drive. See payload signal for reason of trigger. Drive Inverter Warning: Firmware assertion
Affected Tesla Models
What You May Notice
- DIF-A249 may appear with another Tesla alert in the Drive Inverter Front (DIF) system.
- The vehicle may limit charging, driving, comfort, or safety features depending on the active alerts.
- The alert may clear after sleep, but recurring alerts should be treated as service-relevant.
How to Diagnose and Resolve
- 1 Reboot the vehicle (hold both scroll wheels)
- 2 Check for pending OTA software updates
- 3 Monitor for recurrence over the next few days; schedule service if needed
Severity Notes
DIF-A249 is an Alert in the Drive Inverter Front system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.