EPAS3S family
EPAS3S_a149_currentSensPathSwitch
Not Available
What does the EPAS3S_a149_currentSensPathSwitch alert mean?
Current sensor in backup measurement mode
What you'll see in your Tesla
- Not Available
What triggers it
Current sensor switched to backup measurement due to low printed circuit board (PCB) temperature & serial number
When it clears
Electronic Power Assist Steering (EPAS) power cycle. Alert latches after setting.
Potential impact
Electronic Power Assist Steering (EPAS) current sense module in backup measurement mode
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.