Vehicle Approaching Sound ECU Communication Stop Mode [06/2018 - 08/2021]: Description

Detection Item	Symptom	Trouble Area
Vehicle Approaching Sound ECU Communication Stop Mode	Any of the following conditions are met: Communication stop for "Acoustic Vehicle Alerting System" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [06/2018 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 08/2021] Communication stop history for "Acoustic Vehicle Alerting System" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Acoustic Vehicle Alerting System" is 6 or more.) Refer to PROBLEM SYMPTOMS TABLE [06/2018 - 08/2020] , or refer to PROBLEM SYMPTOMS TABLE [08/2020 - 08/2021] Communication system DTCs (DTCs that start with U) that correspond to "Vehicle Approaching Sound ECU Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [06/2018 - 10/2019] , or refer to DTC COMBINATION TABLE [10/2019 - 08/2020] , or refer to DTC COMBINATION TABLE [08/2020 - 08/2021]	Vehicle approaching speaker controller branch line or connector Power source circuit of vehicle approaching speaker controller Vehicle approaching speaker controller ground circuit Vehicle approaching speaker controller