CC family
CC_f031_pllLockLost
Not Available
What does the CC_f031_pllLockLost alert mean?
Alternating current (AC) line phase-locked loop (PLL) failed to lock. Check grid frequency and quality.
What you'll see in your Tesla
- Not Available
What triggers it
PLL was unable to identify valid grid frequency and phase.
When it clears
AC line PLL successfully locks.
Potential impact
Ground fault circuit interrupter (GFCI) cannot function without locked PLL, wall connector will not operate.
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.