Toyota RAV4 manuals

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

Toyota Sienna Service Manual / Navigation / Navigation system / Diagnostic trouble code chart / 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

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 AND NAVIGATION ASSEMBLY - TELEVISION DISPLAY ASSEMBLY)

CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - TELEVISION DISPLAY ASSEMBLY)

  1. Disconnect the radio and navigation assembly R14 connector and television display assembly T14 connector.
  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 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:

Installation
1. INSTALL OUTSIDE MOULDING Using a heat light, heat the mounting surface of the vehicle body between 40 to 60 C (104 to 140 F). NOTICE: Do not heat the body excessively. Remove the tape from the vehicle body. Wipe off the stains with cleaner. Clean the outside moulding (if reusing t ...

Weight limits
The gross trailer weight must never exceed 3500 lb. (1588 kg).* The gross combination weight must never exceed the GCWR described below. 2WD models: 8900 lb. (4037 kg)* AWD models: 8990 lb. (4078 kg)* The gross vehicle weight must never exceed the GVWR indicated on the Certifi ...

Console box
Press the tab. Type A Type B Sliding the console box (type B) From front Press the tab and slide the console box. From rear Pull up the lever and slide the console box. Console box light The console box light turns on when the headlight switch is on. ...

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