4WD Control ECU Communication Stop Mode [10/2016 - ]: Description

Detection Item	Symptom	Trouble Area
4WD Control ECU Communication Stop Mode	Either condition is met: Communication stop for "Four Wheel Drive Control" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [10/2016 - 09/2020] , or refer to PROBLEM SYMPTOMS TABLE [09/2020 - ] Communication system DTCs (DTCs that start with U) that correspond to "4WD Control ECU Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [10/2016 - 10/2017] , or refer to DTC COMBINATION TABLE [10/2017 - 09/2018] , or refer to DTC COMBINATION TABLE [09/2018 - 09/2020] , or refer to DTC COMBINATION TABLE [09/2020 - 11/2021] , or refer to DTC COMBINATION TABLE [11/2021 - 10/2023] , or refer to DTC COMBINATION TABLE [10/2023 - ]	4WD ECU assembly branch line or connector Power source circuit of 4WD ECU assembly 4WD ECU assembly ground circuit 4WD ECU assembly