Microphone Circuit [11/2018 - 10/2019]: Description
WARNING: This page is about a different car, the 2022 Toyota RAV4, 2021 Toyota RAV4, 2020 Toyota RAV4, and 2019 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
- The radio and display receiver assembly, telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
- Using this circuit, the DCM (telematics transceiver) sends power to telephone microphone assembly, and the telephone microphone assembly sends microphone signals to the radio and display receiver assembly and navigation ECU via the DCM (telematics transceiver).*
- *: w/ Manual (SOS) Switch