Toyota RAV4 manuals

Toyota Sienna Service Manual: Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

Toyota Sienna Service Manual / Audio / visual / Audio and visual system / Diagnostic trouble code chart / Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

The stereo jack adapter sends an external device sound signal to the radio receiver through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier or radio receiver, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier, radio receiver, or speakers.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER)

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER)

  1. Disconnect the connectors from the stereo jack adapter and radio receiver.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

*1: 10 Speaker System
*2: 6 Speaker with Rear Entertainment System
*3: 6 Speaker without Rear Entertainment System

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Sound Signal Circuit between Radio Receiver and Television Display Assembly
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Mute Signal Circuit between Radio Receiver 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:

Poor Sound Quality in All Modes (Low Volume)
INSPECTION PROCEDURE 1 CHECK AUDIO SETTINGS Set "BASS", "MID" and "TREB" to the initial values and check that sound is normal. OK: Malfunction disappears. 2 COMPARE WITH ANOTHER VEHICLE OF SAME MODEL Compare with another vehicle of the same model. ...

Fatigue alert
General information The system can detect decreasing alertness or fatigue of the driver during long, monotonous trips, for instance on highways. In this situation, it is recommended that the driver takes a break. Safety information Warning The system cannot serve as a substitute for the driver's pe ...

Operating the audio system
Press this button to eject a disc Insert a disc into the disc slot Press to pause or resume playing music. Press the “<” or “>” button to seek up or down for a radio station, or to access a desired track or file. Turn this knob to select radio station bands, tracks and ...

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