VCBATT1_a597 — LVBMB eFuse Self Test Not Ready
Full alert identifier: VCBATT1_a597_LVBMBeFuseSelfTestNotReady
Message shown in the car
Vehicle running routine system check LV battery charging, drive available soon
Alert description
The Low Voltage (LV) battery internal protection transistor (MOSFET) self test has not yet completed.
Potential impact
Vehicle is unable to shift out of Park (P) until the LV battery internal protection transistor (MOSFET) self test completes or times out without completing. If the self test cannot complete and confirm LV battery MOSFET functionality, the LV battery may be unable to support vehicle electrical systems or recharge via the Power Conversion System (PCS).
Set condition
The LV battery internal protection transistor (MOSFET) self test has not yet completed because a condition or combination of conditions prevents it from running. Alert log signal data should provide more information.
Clear condition
The LV battery internal protection transistor (MOSFET) self test completes or times out after 35 seconds when the vehicle is in DRIVE power state.
Signals to check
These diagnostic fields are associated with VCBATT1_a597. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
EPB Released
VCBATT1_
|
— |
IBS Current Invalid
VCBATT1_
|
— |
LVBMB Current Invalid
VCBATT1_
|
— |
LVBMB E Fuse Open
VCBATT1_
|
— |
LV Bus Voltage Not Controllable
VCBATT1_
|
— |
LV Not Being Supported
VCBATT1_
|
— |
Closed Chg Result
VCBATT1_
|
— |
Closed D Chg Result
VCBATT1_
|
— |
Show 5 more fields
| Signal | Unit |
|---|---|
External Power Supply
VCBATT1_
|
— |
Lost LV Bus Control
VCBATT1_
|
— |
Lv Battery Low Charge
VCBATT1_
|
— |
Self Test State
VCBATT1_
|
— |
Vehicle Is Updating
VCBATT1_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCBATT1_a597.