Toyota Sienna Service Manual: Mute Signal Circuit between Radio and Navigation Assembly and Television Display Assembly
DESCRIPTION
The radio and navigation assembly controls the volume according to the MUTE signal from the television display assembly.
The MUTE signal is sent to reduce noise and a popping sound generated when switching the mode, etc.
If there is an open in the circuit, noise can be heard from the speakers when changing the sound source.
If there is a short in the circuit, even though the radio and navigation assembly is normal, no sound or only an extremely small sound can be produced.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT TELEVISION DISPLAY ASSEMBLY
- Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - TELEVISION DISPLAY ASSEMBLY)
- Disconnect the radio and navigation assembly R14 connector and television display assembly T14 connector.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 REPLACE TELEVISION DISPLAY ASSEMBLY
- Replace the television display assembly and check if it operates normally.
OK: The navigation system operates normally.
REPLACE RADIO AND NAVIGATION ASSEMBLY
Sound Signal Circuit between Radio and Navigation Assembly and
Stereo Jack Adapter
DESCRIPTION
The stereo jack adapter sends an external device sound signal to the radio
and navigation assembly
through this circuit.
The sound signal that has been sent is amplified by the ster ...
Mute Signal Circuit between Radio and Navigation Assembly and
Stereo Component Amplifier
DESCRIPTION
This circuit sends a signal to the stereo component amplifier to mute noise.
Because of that, the noise
produced by changing the sound source ceases.
If there is an open in the circ ...
Other materials:
Power slide door control motor and clutch
INSPECTION
1. INSPECT SLIDE DOOR CONTROL MOTOR AND CLUTCH ASSEMBLY LH
Remove the motor and clutch.
Connect the battery positive (+) lead to terminal 3
and the battery negative (-) lead to terminal 2.
Apply battery voltage to the terminals and check the
motor operation.
OK
If ...
Approach warning
When your vehicle is too close to a vehicle ahead, and sufficient automatic
deceleration via the cruise control is not possible, the display
will flash and the buzzer will sound to alert the driver. An example of
this would be if another driver cuts in front of you while you are following
a vehi ...
Master Reset/ Voice Processing Device ON Error
DTC 01-DD Master Reset
DTC 01-E1 Voice Processing Device ON Error
DESCRIPTION
HINT:
*1: This code may be stored if the engine is started and the ignition switch is
turned to START position
again.
*2: Even if no fault is present, this trouble code may be stored depending on
the battery ...
