Toyota RAV4 manuals

Toyota Sienna Service Manual: Mute Signal Circuit between Radio Receiver and Television Display Assembly

Toyota Sienna Service Manual / Audio / visual / Audio and visual system / Diagnostic trouble code chart / Mute Signal Circuit between Radio Receiver and Television Display Assembly

DESCRIPTION

The radio receiver 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 receiver is normal, no sound or, only an extremely small sound, can be produced.

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT TELEVISION DISPLAY ASSEMBLY

INSPECT TELEVISION DISPLAY ASSEMBLY

  1. Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

2 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY)

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY)

  1. Disconnect the radio receiver connector R8 and television display assembly connector T14.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 REPLACE TELEVISION DISPLAY ASSEMBLY

  1. Replace the television display assembly and check if the audio system operates normally.

OK: The audio system operates normally

REPLACE RADIO RECEIVER

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Other materials:

Installation
1. INSTALL IGNITION SWITCH ASSEMBLY (a) Install the ignition switch with the 2 screws. (b) Install the ignition switch connector. 2. INSTALL STEERING COLUMN COVER LOWER (a) Attach the 4 claws to install the steering column cover lower. (b) Insert the key into the ignition key cylinde ...

Inspection
1. INSPECT LOWER BALL JOINT ASSEMBLY FRONT LH (a) As shown in the illustration, flip the ball joint stud back and forth 5 times, before installing the nut. (b) Using a torque wrench, turn the nut continuously at a rate of 3 - 5 seconds per 1 turn and take the torque reading on the 5th tur ...

Rear door lock
INSPECTION 1. INSPECT REAR DOOR LOCK ACTUATOR ASSEMBLY LH  Apply battery voltage to the door lock and check operation of the motor. OK HINT: If the result is not as specified, replace the door lock assembly.  Measure the resistance according to the value(s) in the ...

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