APP_w009_aebFault
Automatic Emergency Braking is unavailable
What does the APP_w009_aebFault alert mean?
The Autopilot electronic control unit (ECU) detects that Automatic Emergency Braking (AEB) is unavailable due to a condition affecting communication with the Drive Inverter (DI) or DI functionality.
What you'll see in your Tesla
- Automatic Emergency Braking is unavailable
- Feature may be restored on next drive
What triggers it
May set due to any of the following: (1) Drive inverter (DI) is detected as MIA; (2) DI does not respond to an Autopilot AEB request; (3) DI AEB state detected as FAULT by Autopilot ECU.
When it clears
Condition affecting DI communication or functionality is no longer present 10 seconds after drive rail is cycled.
Potential impact
AEB is not available
Affected models
Track your Tesla's alerts automatically
Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.