VCFRONT1_a250 — Pcs Ov Shutdown Tripped

Full alert identifier: VCFRONT1_a250_pcsOvShutdownTripped

Alert description

The Power Conversion System (PCS) overvoltage shutdown protection is initiated on the Front Vehicle Controller (VCFRONT). The PCS support will be in IDLE until the protection clears.

Potential impact

The PCS DCDC is shut down and unavailable. Separate LVUnhealthy alert indicating a condition affecting low voltage (LV) electrical system will also be present.

Set condition

The 16V bus reports an overvoltage condition on VCFRONT while the vehicle is in Drive.

Clear condition

The vehicle is parked and the 16V bus voltage is below 18V, causing the PCS overvoltage shutdown protection to reset.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Bus Voltage `VCFRONT1_a250_busVoltage`	V
Dcdc Enable Line Voltage `VCFRONT1_a250_dcdcEnableLineVoltage`	V
Ov Clamp Bus Voltage `VCFRONT1_a250_ovClampBusVoltage`	V
Ov Clamp Monitor Voltage 1 `VCFRONT1_a250_ovClampMonitorVoltage1`	V
Ov Clamp Reference Voltage `VCFRONT1_a250_ovClampReferenceVoltage`	V

Signal	Unit
Batt Domain Healthy `VCFRONT1_a250_battDomainHealthy`	—
Pcs Ov Shutdown Armed `VCFRONT1_a250_pcsOvShutdownArmed`	—
Pcs Ov Shutdown Fault Pin Active `VCFRONT1_a250_pcsOvShutdownFaultPinActive`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT1_a250.