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

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

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