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:

Power back door warning buzzer
INSPECTION 1. POWER BACK DOOR WARNING BUZZER Check the resistance of the buzzer. Resistance If the result is not as specified, replace the buzzer. NOTICE: The circuit that causes the buzzer to sounds is built into the back door ECU, not around the buzzer. Directly applying ...

SFR Solenoid Circuit
DESCRIPTION This solenoid goes on when signals are received from the ECU and controls the pressure acting on the wheel cylinders to control the braking force. WIRING DIAGRAM INSPECTION PROCEDURE 1 RECONFIRM DTC HINT: This code is detected when a problem is determined in the bra ...

ABS Warning Light Remains ON
DESCRIPTION If any of the following is detected, the ABS warning light remains on. The skid control ECU connectors are disconnected from the skid control ECU. There is a malfunction in the skid control ECU internal circuit. There is an open in the harness between the combination meter an ...

В© 2011-2020 Copyright www.tsienna.net