Driving Support ECU Communication Stop Mode [04/2018 - 08/2021]: Description

Detection Item	Symptom	Trouble Area
Driving Support ECU Communication Stop Mode	Any of the following conditions are met: Communication stop for "Driving Support (CruiseControl-ACC)" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [04/2018 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 08/2021] Communication stop history for "Driving Support (CruiseControl-ACC)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Driving Support (CruiseControl-ACC)" is 6 or more.) Refer to PROBLEM SYMPTOMS TABLE [04/2018 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 08/2021] 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 [04/2018 - 08/2020] , or refer to DTC COMBINATION TABLE [08/2020 - 08/2021]	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