VCFRONT_a179 — High LV Amps Into PCS
Full alert identifier: VCFRONT_a179_highLVAmpsIntoPCS
Alert description
Higher than expected current is detected flowing into the power conversion system (PCS) from the low voltage (LV) electrical system when not precharging the high voltage (HV) bus.
Potential impact
The PCS will not be supplied with electrical power from the LV system.
Set condition
Input current from the LV system higher than 5A is detected flowing into the PCS for more than 1 second.
Clear condition
Vehicle re-attempts to close HV battery contactors and PCS input current detected from the LV electrical system is not higher than 5A for more than 1 second.
Signals to check
These diagnostic fields are associated with VCFRONT_a179. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
High LV Amps Into PCS Log
VCFRONT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a179.