SCS_a091 — Voltage Rise Detection
Full alert identifier: SCS_a091_voltageRiseDetection
Message shown in the car
Supercharger anomaly detected Unplug and retry
Alert description
Supercharger detected a voltage arc, either legitimately, or as a result of the High Voltage (HV) circuit being opened under load.
Potential impact
May result in thermal damage to components, or welding/fatigue on Fast Charge (FC) contactors.
Set condition
Supercharger detects a rapid change in energy on the HV bus, matching the signature for an arc.
Clear condition
Charge handle is disconnected from vehicle.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SCS_a091.