HVP_w039 — Pack Contactor Fell Open
Full alert identifier: HVP_w039_PackContactorFellOpen
Alert description
The High Voltage Processor (HVP) has detected a pack contactor has opened during a closed state.
Potential impact
The pack contactor state will appear as open. The vehicle powertrain may unexpectedly lose high voltage power under load.
Set condition
The HVP has detected a voltage drop across the contactor and low contactor coil current, indicating a pack contactor has opened despite being in a closed state.
Clear condition
The HVP detects the pack contactor state as open.
Signals to check
These diagnostic fields are associated with HVP_w039. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Neg Contactor Failed
HVP_
|
— |
Pos Contactor Failed
HVP_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of HVP_w039.