VCFRONT_a495 — LV Battery Recovery Blocked
Full alert identifier: VCFRONT_a495_LVBatteryRecoveryBlocked
Alert description
The vehicle controller detects a condition (or conditions) preventing the low voltage (LV) battery internal protection transistor (MOSFET) from closing so the LV battery can be recovered. However, the LV battery may be recoverable using an external LV Lithium Ion Battery charger tool.
Potential impact
The LV battery cannot be recovered while any condition blocking its internal protection transistor (MOSFET) from closing persists. The LV battery is unable to support vehicle electrical systems or to recharge via the power conversion system (PCS) until the internal protection MOSFET closes and recovery begins.
Set condition
A condition or combination of conditions prevents the LV battery internal protection transistor (MOSFET) from closing so the LV battery can be recovered. Alert log signal data should provide more information.
Clear condition
No condition is detected that prevents the LV battery internal protection transistor (MOSFET) from closing so the LV battery can be recovered.
Signals to check
These diagnostic fields are associated with VCFRONT_a495. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
DCDC Off
VCFRONT_
|
— |
HV Off
VCFRONT_
|
— |
Lvbmsmia
VCFRONT_
|
— |
So C Unrecoverable
VCFRONT_
|
— |
Soc Too Low
VCFRONT_
|
— |
External Interaction
VCFRONT_
|
— |
External Power Supply
VCFRONT_
|
— |
Frunk Open
VCFRONT_
|
— |
Show 3 more fields
| Signal | Unit |
|---|---|
Retry Expended
VCFRONT_
|
— |
Reverse Battery E Fuse Fault
VCFRONT_
|
— |
Service Mode
VCFRONT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCFRONT_a495.