CC family
CC_a031_pllLockLost
Not Available
What does the CC_a031_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
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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