Mute Signal Circuit (Radio and Navigation Assy - Stereo Component Amplifier Assy)

MUTE SIGNAL CIRCUIT (RADIO AND NAVIGATION ASSY - STEREO COMPONENT AMPLIFIER ASSY)

CIRCUIT DESCRIPTION
This circuit sends the signal to each component to mute noise. Because of that, noise produced by changing the sound source ceases.

In addition, this circuit is used to mute sound when the navigation system performs voice guide.

If there is an open in the circuit, noise can be heard from the speaker when changing the sound source. When the vehicle is equipped with the navigation system, audio sound keeps coming out from the speaker on the driver's side while the voice navigation is in operation.

If there is a short in the circuit, even though the stereo component amplifier assy is normal, no sound or only extremely small sound can be produced.

Wiring Diagram:

Step 1:

Step 2 - 3:

INSPECTION PROCEDURE