TESLA Alert
PCS-A051
PCS_a051_chgIntBusUv
Also written as PCS_A051 / PCS A051 / PCS_a051_chgIntBusUv / pcs_a051_chgintbusuv
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does PCS-A051 mean?
Tesla alert code in the Power Conversion System (PCS) module. PCS AC charging is stopped
Original Description
PCS AC charging is stopped
Affected Tesla Models
Model SModel XModel 3Model Y
What You May Notice
- Power Conversion System alert: PCS AC charging is stopped
- DC-DC converter issue may affect 12V system (lights, accessories)
- Alert shown in the Tesla app
How to Diagnose and Resolve
- 1 Reboot the vehicle
- 2 Check if 12V accessories (lights, door handles) are behaving normally
- 3 Schedule a Tesla Service appointment for PCS inspection
Severity Notes
PCS-A051 is an Alert in the Power Conversion System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.