DTC P31B5-49: Hybrid/EV Battery Internal Electronic Failure [06/2020 - ]: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2025 Toyota RAV4, 2024 Toyota RAV4, 2023 Toyota RAV4, 2022 Toyota RAV4, and 2021 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
The battery ECU assembly monitors its internal operation and will store these DTCs when it detects an internal malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P31B5-49 | Hybrid/EV Battery Internal Electronic Failure | An abnormal signal is detected by the battery ECU assembly (excessive discharging current). (1 trip detection logic) |
Hybrid vehicle control ECU assembly | Does not come on | Master Warning: Comes on |
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P31B5-49 | Hybrid/EV Battery Current |