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DTC B22E2: Sub Battery Module State of Charge (Overdischarge) [12/2017 - 10/2023]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
B22E2 Sub Battery Module State of Charge (Overdischarge) This DTC is stored when a malfunction is detected caused by over-charging against the battery capacity of the sub-battery.
(1 trip detection logic)
Charging system Does not come on DTC stored

HINT: 

The details of a DTC can be checked by using the DTC Sub Code of the freeze frame data that was recorded when the DTC was output.

DTC Sub Code Detail
"28" Value of Sub Battery Module State of Charge decreased