DTC B22D9: Control Module Performance [12/2017 - 10/2023]: Description
The sub-battery ECU monitors the condition of the internal parts and outputs the following DTC if a malfunction is detected.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| B22D9 | Control Module Performance | This DTC is stored when a malfunction is detected in the sub-battery ECU. (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 |
|---|---|
| "1E" | ECU CAN controller |
| "1F" | Program memory malfunction |
| "20" | Data memory malfunction |
| "21" | RAM check malfunction |
| "22" | ECM RAM (for stack) |
| "23" | Internal A/D converter malfunction |