MyTeslaMate
PCS2 family

PCS2_a129_lossOfZcdEventControl

Not Available

What does the PCS2_a129_lossOfZcdEventControl alert mean?

The Power Conversion System (PCS2) has detected that one of its DCDC stage's resonant tank current zero-crossing event measured timing is continuously out of our control

What you'll see in your Tesla

  • Not Available

What triggers it

The Power Conversion System (PCS2) has detected the resonant tank's zero-crossing behavior is out of its control, resulting in zero-crossing event measured timing being irrational

When it clears

The Power Conversion System (PCS2) no longer detects the irrational resonant tank current zero-crossing event measurement on that DCDC stage

Potential impact

The impacted DCDC stage may have a hardware integrity issue and may not be able to deliver power to its output

Affected models

Cybertruck Model 3 2017-2023 Model 3 2024+ 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.