PCS2REXB_a039 — Hv Bus Top Under Voltage
Full alert identifier: PCS2REXB_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
These diagnostic fields are associated with PCS2REXB_a039. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Hv Bus Bot Voltage
PCS2REXB_
|
V |
Hv Bus Top Voltage
PCS2REXB_
|
V |
Hv Bus Voltage
PCS2REXB_
|
V |
Voltage Fault Threshold
PCS2REXB_
|
V |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PCS2REXB_a039.