VCBATT_a545 — LV Battery Type Unknown

Full alert identifier: VCBATT_a545_LVBatteryTypeUnknown

Alert description

The low voltage (LV) battery type detected on startup is unknown. This usually happens the first time a controller is powered on, or after non-volatile memory (NVM) corruption, which will be indicated by another alert.

Potential impact

LV battery performance may be limited. LV battery support for vehicle electrical systems may be limited or unavailable.

Set condition

The LV battery type detected on startup is unknown.

Clear condition

The LV battery type detected on startup is no longer unknown. This can happen if the controller is reset after seeing a valid vehicle gateway (GTW) configuration value for the LV battery.

Signals to check

These diagnostic fields are associated with VCBATT_a545. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
GTW Twelve V Battery Type `VCBATT_a545_GTW_twelveVBatteryType` 2 CATL LI ION	—
Factory Gated `VCBATT_a545_factoryGated`	—
Frunk Open `VCBATT_a545_frunkOpen`	—
New LV Battery Type `VCBATT_a545_newLVBatteryType` 0 UNKNOWN 1 ATLASBX B24 FLOODED 2 CLARIOS B24 FLOODED 3 CATL LI ION 4 TESLA 16V LI ION 5 TESLA 48V LI ION	—
Service Mode `VCBATT_a545_serviceMode`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCBATT_a545.