ECM Communication Stop Mode [04/2020 - 09/2022]: Description

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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 [04/2020 - 09/2022] 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 [04/2020 - 09/2022] 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 [04/2020 - 09/2022]	ECM main line or connector ECM branch line or connector Power source circuit of ECM ECM ground circuit ECM