EFUSE family
EFUSE_w139_dcdcSelfTestFail
Not Available
What does the EFUSE_w139_dcdcSelfTestFail alert mean?
DCDC Self Test Failed due to a fault condition.
What you'll see in your Tesla
- Not Available
Potential impact
DCDC feed may go unpowered.
Affected models
Model S 2012-2020
Model X 2015-2020
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.