Engine Stop and Start ECU Communication Stop Mode [12/2021 - 10/2023]: Description

Detection Item	Symptom	Trouble Area
Engine Stop and Start ECU Communication Stop Mode	Any of the following conditions are met: Communication stop for "Stop and Go/Start" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ] Communication stop history for "Stop and Go/Start" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Stop and Go/Start" is 6 or more.) Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ] Communication system DTCs (DTCs that start with U) that correspond to "Engine Stop and Start ECU Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [12/2021 - 10/2022] , or refer to DTC COMBINATION TABLE [10/2022 - 10/2023]	Engine stop and start ECU branch wire or connector Power source circuit of engine stop and start ECU Engine stop and start ECU ground circuit Engine stop and start ECU