DTC U11B3-08: Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Bus Signal / Message Failure [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 the ECU Power Source Circuit.
Refer to WIRING DIAGRAM
Refer to the DTC P2533-14.
Refer to WIRING DIAGRAM