PCS family
PCS_a004_chgHwIntBusOv
Not Available
What does the PCS_a004_chgHwIntBusOv alert mean?
Charger intermediate bus over voltage
What you'll see in your Tesla
- Not Available
What triggers it
Charger intermediate bus voltage exceeds maximum intermedate bus voltage threshold
When it clears
Charger phase state machine clears faults for phase
Potential impact
Reduced AC charge rate or inability to AC charge
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.