ECM Communication Stop Mode [11/2017 - ]: Description

Detection Item	Symptom	Trouble Area
ECM Communication Stop Mode	Either condition is met: Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [11/2017 - 08/2018] , or refer to PROBLEM SYMPTOMS TABLE [08/2018 - ] 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 [11/2017 - 08/2018] , or refer to DTC COMBINATION TABLE [08/2018 - ]	Power source circuit of ECM ECM ground circuit ECM main wire or connector ECM