ESP family
ESP_a167_axSignalFault
Not Available
What does the ESP_a167_axSignalFault alert mean?
Invalid Data Received From Air Bag Control Module : Invalid Ax Signal Status
What you'll see in your Tesla
- Not Available
What triggers it
Inertial signal failed plausibility/integrity checks
When it clears
Inertial messages are present/valid on the bus. Review RCM/DI alerts for other indicators of failure
Potential impact
May fault VDC/TC, ABS performance degradation
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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.