DTC P0A1B-49: Drive Motor "A" Control Module Internal Electronic Failure [06/2018 - ]: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The MG ECU, which is built into the inverter with converter assembly, monitors its internal operation and will store DTCs if the system is malfunctioning.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0A1B-49 | Drive Motor "A" Control Module Internal Electronic Failure | MG ECU internal malfunction: Calculation check error (1 trip detection logic) |
Inverter with converter assembly | Comes on | Master Warning Light: Comes on |