Driving Support ECU Communication Stop Mode [09/2017 - 05/2019]: Description

Detection Item	Symptom	Trouble Area
Driving Support ECU Communication Stop Mode	Any of the following conditions are met: Communication stop for "Driving Support (Cruise Control-ACC)" is indicated on the "Communication Bus Check" screen of the Techstream. 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 correspond to "Driving Support ECU Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [09/2017 - 05/2018] , or refer to DTC COMBINATION TABLE [05/2018 - 05/2019]	Driving support ECU assembly branch wire or connector Power source circuit of driving support ECU assembly Driving support ECU assembly ground circuit Driving support ECU assembly