DTC P1C6B-9F: Rear Motor Shutdown Stuck Off [12/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
The rear motor generator control ECU (MGR ECU) sends shutdown signals to the rear inverter to cut the power supply to the rear motor (MGR). If the ignition switch is turned off, the rear motor generator control ECU (MGR ECU) will send a SDNR (MGR 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 | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P1C6B-9F | Rear 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 SDNR (MGR shutdown signal) signal is sent but the rear motor (MGR) inverter current and voltage (VLR) do not decrease. (1 trip detection logic) |
EV motor control inverter assembly | Does not come on | Master Warning: Comes on |
Rear Motor Generator | A | SAE Code: P1C6B |