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DTC B22E0: Deterioration of Sub Battery Module [12/2017 - 10/2023]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
B22E0 Deterioration of Sub Battery Module When the output of the sub-battery drops to such an extent that it cannot support connected vehicle electric load.
(1 trip detection logic)
Sub-battery module assembly Comes 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
"2E" Sub-battery has been deteriorated