ECM Communication Stop Mode [03/2017 - 05/2023]: Description

Detection Item	Symptom	Trouble Area
ECM Communication Stop Mode	Any of the following conditions are met: Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [03/2017 - 04/2020] , or refer to PROBLEM SYMPTOMS TABLE [04/2020 - 05/2023] Communication stop history for "ECM (Engine)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "ECM (Engine)" is 6 or more.) Refer to PROBLEM SYMPTOMS TABLE [03/2017 - 04/2020] , or refer to PROBLEM SYMPTOMS TABLE [04/2020 - 05/2023] Communication system DTCs (DTCs that start with U) that correspond to "ECM Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [03/2017 - 06/2019] , or refer to DTC COMBINATION TABLE [06/2019 - 04/2020] , or refer to DTC COMBINATION TABLE [04/2020 - 11/2021] , or refer to DTC COMBINATION TABLE [11/2021 - 05/2023]	ECM main wire or connector Power source circuit of ECM ECM ground circuit ECM