4WD Control ECU Communication Stop Mode [09/2017 - 05/2019]: Description

Detection Item	Symptom	Trouble Area
4WD Control ECU Communication Stop Mode	Any of the following conditions are met: Communication stop for "Four Wheel Drive Control" is indicated on "Communication Bus Check". Refer to DIAGNOSIS SYSTEM [09/2017 - 05/2018] , or refer to DIAGNOSIS SYSTEM [05/2018 - 05/2019] Communication system DTCs (DTCs that start with U) that are output correspond to "4WD Control ECU Communication Stop Mode" in "DTC Combination Table". Refer to DTC COMBINATION TABLE [09/2017 - 05/2018] , or refer to DTC COMBINATION TABLE [05/2018 - 05/2019]	4WD ECU assembly CAN branch wire or connector Power source circuit of 4WD ECU assembly 4WD ECU assembly ground circuit 4WD ECU assembly