Shift Control ECU Communication Stop Mode [10/2022 - 08/2023]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

Detection Item	Symptom	Trouble Area
Shift Control ECU Communication Stop Mode	Communication stop for "Transmission Control" is indicated on the "Communication Bus Check" screen of the GTS. Refer to DIAGNOSIS SYSTEM [10/2022 - 08/2023]	Transmission floor shift assembly (shift control ECU) branch line or connector Power source circuit of transmission floor shift assembly (shift control ECU) Transmission floor shift assembly (shift control ECU) ground circuit Transmission floor shift assembly (shift control ECU)