MyTeslaMate
EPBL family

EPBL_a126_MotorNVoltLow

Not Available

What does the EPBL_a126_MotorNVoltLow alert mean?

Motor negative lead voltage measurement is less than 0.5 volts while inactive

What you'll see in your Tesla

  • Not Available

What triggers it

The Electronic Parking Brake motor is idle, and the negative lead voltage measurement is lower than 0.5 volts.

When it clears

Caliper state machine exits csmState CSM_FAULT

Potential impact

Caliper motor or harness may be damaged

Affected models

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.