DTC P0A1C-94: Drive Motor "B" Control Module Unexpected Operation [09/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU assembly monitors the rear motor generator control ECU (MGR ECU) and stores this DTC when it detects a malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P0A1C-94 | Drive Motor "B" Control Module Unexpected Operation | The rear motor generator control ECU (MGR ECU) value received by the hybrid vehicle control ECU assembly differs from the expected value for a certain period of time. (1 trip detection logic) |
EV motor control inverter assembly | Does not come on | Master Warning: Comes on | Hybrid Control | A | SAE Code: P0A1C |