Tundra 2WD V6-4.0L (1GR-FE) (2005)
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.