DTC U11BD-87: Lost Communication with TCM (ch6) Missing Message [09/2023 - ]: Wiring Diagram
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.
Refer to the wiring diagram for DTC U11B9-87.
Refer to WIRING DIAGRAM
Refer to TCM Power Source Circuit of the TCM.