DTC P31B5-49: Hybrid/EV Battery Internal Electronic Failure [08/2020 - ]: Description
WARNING: This page is about a different car, the 2022 Toyota Avalon and 2021 Toyota Avalon. 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 | Does not come on | Master Warning Light: Comes on |
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P31B5-49 | Hybrid/EV Battery Current |