VCFRONT_a587 — External LV Power Supply
Full alert identifier: VCFRONT_a587_externalLVPowerSupply
Alert description
An external low voltage power supply is detected. LVBMS_packCurrent and IBSCurrent reading are significantly different.
Potential impact
The low voltage (LV) battery management system might behave differently.
Set condition
The absolute value of current difference between LVBMS_packCurrent and IBSCurrent is larger than 2A for 0.5 seconds.
Clear condition
The absolute value of current difference between LVBMS_packCurrent and IBSCurrent is smaller than 0.5A for 1 second.
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 |
|---|---|
IBS Current
VCFRONT_
|
A |
LVBMS Pack Current
VCFRONT_
|
A |
| Signal | Unit |
|---|---|
LVBMS Pack Current Valid
VCFRONT_
|
— |
Battery SM State
VCFRONT_
|
— |
Factory Mode
VCFRONT_
|
— |
Frunk Open
VCFRONT_
|
— |
Service Mode
VCFRONT_
|
— |
Transport Mode
VCFRONT_
|
— |
Vehicle Power State
VCFRONT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a587.