toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 6788 > < Initial Inspection and Diagnostic Overview|Page 6786
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Step 2

INSPECTION PROCEDURE

Mute Signal Circuit (Radio Receiver Assy - Multi-Display Controller Sub-Assy)

MUTE SIGNAL CIRCUIT (RADIO RECEIVER ASSEMBLY - MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY) 

CIRCUIT DESCRIPTION 
The multi-display controller sub-assembly controls the volume according to the MUTE signal from the radio receiver assembly or radio and navigation
assembly.

The MUTE signal is sent to reduce noise and a popping sound generated when the mode etc. is switched.

Initial Inspection and Diagnostic Overview|Page 6788 > < Initial Inspection and Diagnostic Overview|Page 6786