DTC B22D7: Sub Battery Module Protection Relay Drive Circuit Malfunction [12/2017 - 10/2023]: Description
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| B22D7 | Sub Battery Module Protection Relay Drive Circuit Malfunction | This DTC is stored when a malfunction is detected in the protection relay drive circuit. (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 |
|---|---|
| "31" | CNT V1 Voltage and CNT V2 Voltage during protective relay closed control are continuously less than 8 V for 1 second |
| "32" | CNT V1 Voltage and CNT V2 Voltage during protective relay open control are continuously 8 V or higher for 10 seconds |
| "33" | Protection relay drive circuit output drop continuously occurs for 10 seconds |