DTC U115E-87: Lost Communication with Drive Motor Control Module "B" (ch3) 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 hybrid vehicle control ECU assembly and rear motor generator control ECU (MGR ECU) send and receive signals via CAN communication (ML-bus).
The following ECUs are connected to the ML-bus.
- ECM
- Hybrid vehicle control ECU assembly
- TCM
- Motor generator control ECU (MG ECU)
- Rear motor generator control ECU (MGR ECU)
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| U115E-87 | Lost Communication with Drive Motor Control Module "B" (ch3) Missing Message | A CAN communication error between the hybrid vehicle control ECU assembly and rear motor generator control ECU (MGR ECU) (CAN communication system (ML bus) malfunction) occurs. The hybrid vehicle control ECU assembly cannot receive signals from the rear motor generator control ECU (MGR ECU). (1 trip detection logic). |
|
Comes on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: U155E |