Toyota Sienna Service Manual: 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 stereo component amplifier 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 and navigation assembly or speakers.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STEREO JACK ADAPTER)
- Disconnect the connectors from the stereo jack adapter and radio and navigation assembly.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Sound Signal Circuit between Radio and Navigation Assembly and
Stereo Component Amplifier
DESCRIPTION
The radio and navigation assembly sends a sound signal to the stereo
component amplifier through this
circuit.
The sound signal that has been sent is amplified by the stereo compone ...
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 ...
Other materials:
Repeat play
Select to change on/off.
Using cellular phones
Interference may be heard through the audio system’s speakers if a cellular
phone is being used inside or close to the vehicle while the audio system is
operating.
Certification (caution)
Laser product
This product is a class 1 laser product.
...
Throttle / Pedal Position Sensor
HINT:
These DTCs relate to the Accelerator Pedal Position (APP) sensor.
DESCRIPTION
HINT:
This ETCS (Electronic Throttle Control System) does not use a throttle cable.
The Accelerator Pedal Position (APP) sensor is integrated with the accelerator
pedal bracket and has 2
sensor circuits ...
Reassembly
1. INSTALL LIGHT CONTROL ECU (DISCHARGE HEADLIGHT)
Install a new headlight leveling motor base packing.
Install the headlight leveling motor assembly as
shown in the illustration.
Connect the connector with the claw
Install the light control ECU with the 2 ...
