DTC U11B9-87: Lost Communication with ECM/PCM "A" (ch6) 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 motor generator control ECU (MG ECU) transmits and receives signals via CAN communication to and from the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| U11B9-87 | Lost Communication with ECM/PCM "A" (ch6) Missing Message | A CAN communication error between the ECM and motor generator control ECU (MG ECU) (CAN communication system malfunction) occurs (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
Motor Generator | B | SAE Code: U11B9 |