VCBATT_a359 — Post POR Excessive Ah

Full alert identifier: VCBATT_a359_postPORExcessiveAh

Alert description

After a vehicle power-on-reset (POR), the vehicle controller detects the low voltage (LV) battery has consumed too many Amp hours (Ah) during its initial charge, indicating the LV battery was deeply discharged prior to the power-on-reset.

Potential impact

The LV battery may be unable to hold adequate electrical charge to remain functional. Replacement may be necessary, with a separate alert present to indicate that condition if applicable.

Set condition

The vehicle controller detects the Amp hour (Ah) count going into the low voltage (LV) battery while recharging exceeded its limit.

Clear condition

Next LV battery charging session.

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 Ah `VCBATT_a359_IBSAh`	Ah
IBS Volts `VCBATT_a359_IBSVolts`	V

Signal	Unit
Bms mia `VCBATT_a359_BMS_MIA`	—
Pcs mia `VCBATT_a359_PCS_MIA`	—
Battery SM State `VCBATT_a359_batterySMState`	—
Bms State `VCBATT_a359_bmsState`	—
Coolant Has Been Filled `VCBATT_a359_coolantHasBeenFilled`	—
Crash Detected `VCBATT_a359_crashDetected`	—
Dcdc LV Support Status `VCBATT_a359_dcdcLVSupportStatus` 0 IDLE 1 ACTIVE 2 FAULTED	—
Hv State `VCBATT_a359_hvState` 0 DOWN 1 COMING UP 2 GOING DOWN 3 UP FOR DRIVE 4 UP FOR CHARGE 5 UP FOR DC CHARGE 6 UP	—

Show 2 more fields

Signal	Unit
Service Mode `VCBATT_a359_serviceMode`	—
Vehicle Power State `VCBATT_a359_vehiclePowerState` 0 OFF 1 CONDITIONING 2 ACCESSORY 3 DRIVE	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCBATT_a359.