DTC U11B3-87: Lost Communication with Hybrid/EV Powertrain Control Module (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 hybrid vehicle control ECU assembly via local CAN communication.
When a communication malfunction occurs with the hybrid vehicle control ECU assembly, the TCM outputs a DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| U11B3-87 | Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Missing Message | No communication between the TCM and hybrid vehicle control ECU assembly for 1 second or more (1-trip detection logic). |
|
Comes on | Transmission | A | SAE: U11B3 |