DTC U117F-87: Lost Communication with Drive Motor Control Module "A" (ch5) Missing Message [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 TCM sends and receives data to and from the motor generator control ECU via local CAN communication.
When a communication malfunction occurs with the motor generator control ECU, the TCM outputs a DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| U117F-87 | Lost Communication with Drive Motor Control Module "A" (ch5) Missing Message | No communication between the TCM and motor generator control ECU for 1 second or more (1-trip detection logic). |
|
Comes on | Transmission | A | SAE: U117F |