Driving Support ECU Communication Stop Mode [11/2017 - 01/2023]: Description

Detection Item	Symptom	Trouble Area
Driving Support ECU Communication Stop Mode	Either condition is met: Communication stop for "Driving Support (Cruise Control-ACC)" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [11/2017 - 03/2019] , or refer to PROBLEM SYMPTOMS TABLE [03/2019 - 01/2023] 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 [11/2017 - 03/2019] , or refer to DTC COMBINATION TABLE [03/2019 - 09/2020] , or refer to DTC COMBINATION TABLE [09/2020 - 01/2023]	Driving support ECU assembly branch line or connector Power source circuit of driving support ECU assembly Driving support ECU assembly ground circuit Driving support ECU assembly