DTC P1C6A-9F: Motor Shutdown Stuck Off [11/2021 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
The motor generator control ECU (MG ECU) sends shutdown signals to the inverter to cut the power supply to the generator (MG1) and motor (MG2). If the ignition switch is turned off, the motor generator control ECU (MG ECU) will send a GSDN (MG1 Shutdown Signal) signal and MSDN (MG2 shutdown signal) signal to check the function of the HV gate block. If a shutdown malfunction is detected, this DTC will be stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P1C6A-9F | Motor Shutdown Stuck Off | When the HV gate block function check is performed (when the ignition switch is turned from ON (READY) to off), the MSDN (MG2 shutdown) signal is sent but the motor (MG2) inverter current and voltage (VH) do not decrease. (1 trip detection logic) |
Inverter with converter assembly | Does not come on | Master Warning: Comes on |