Microphone Circuit between Overhead Junction Block and Multi-display: Description

w/o LEXUS Link System

This circuit sends a microphone signal from the microphone to the multi-display. It also supplies power from multi-display to the microphone

w/ LEXUS Link System

This circuit sends a microphone signal from the microphone to the multi-display through the mayday ECU.

It also supplies power from the mayday ECU to the microphone.