PCS2_a039 — Hv Bus Top Under Voltage
Full alert identifier: PCS2_a039_hvBusTopUnderVoltage
Alert description
The sensor measuring the top half of the high voltage (HV) bus voltage detects a value below the allowed voltage threshold
Potential impact
DCDC functionality may be limited or paused
Set condition
The sensor measuring the top half of the HV bus voltage goes below the allowed voltage threshold
Clear condition
The DCDC system retries
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 |
|---|---|
Hv Bus Bot Voltage
PCS2_
|
V |
Hv Bus Top Voltage
PCS2_
|
V |
Hv Bus Voltage
PCS2_
|
V |
Voltage Fault Threshold
PCS2_
|
V |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS2_a039.