DTC U11B3-08: Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Bus Signal / Message Failure [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 rear motor generator control ECU (MGR ECU) transmits and receives signals via CAN communication to and from the hybrid vehicle control ECU.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| U11B3-08 | Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Bus Signal / Message Failure | A CAN communication error between the hybrid vehicle control ECU and rear motor generator control ECU (MGR ECU) (CAN communication system malfunction) occurs (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
Motor Generator | B | SAE Code: U11B3 |