VCBATT_a243 — LV Overcharge Instc

Full alert identifier: VCBATT_a243_LVOverchargeInstc

Alert description

After a single discharge and recharge cycle, the low voltage (LV) battery has been overcharged by more than 5 Amp hours (Ah) compared to initial charge level. If this continues, it may indicate a condition affecting LV battery performance that makes replacement necessary. May also indicate aftermarket device(s) installed on the vehicle, whose current draw interferes with LV battery management.

Potential impact

10 independent instances of this alert indicate a chronic overcharge condition that may require LV battery replacement to resolve, and at least one other alert should be present to indicate that condition.

Set condition

Over a single charge cycle, the LV battery has recharged by more than 5Ah compared to the power initially discharged.

Clear condition

The LV battery is no longer recharging by more than 5Ah compared to the amount discharged.

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 `VCBATT_a243_IBSCurrent`	A
IBS Volts `VCBATT_a243_IBSVolts`	V
LV Battery Temp `VCBATT_a243_LVBatteryTemp` -32768 SNA	degC

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCBATT_a243.