DTC P1AFF-00: Hybrid/EV Battery ECU Multiple Reset [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 |
|---|---|---|---|---|---|
| P1AFF-00 | Hybrid/EV Battery ECU Multiple Reset | ECU internal malfunction (1 trip detection logic) |
Battery ECU assembly | Does not come on | Master Warning Light: Comes on |