Engine Stop and Start ECU Communication Stop Mode [11/2018 - 12/2021]: 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 [11/2018 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 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 [11/2018 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 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 [11/2018 - 02/2019] , or refer to DTC COMBINATION TABLE [02/2019 - 10/2019] , or refer to DTC COMBINATION TABLE [10/2019 - 08/2020] , or refer to DTC COMBINATION TABLE [08/2020 - 12/2021]	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