The radio receiver assembly sends sounds signal to the stereo component amplifier assembly through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly, 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 assembly or speakers.

The stereo component amplifier sends sound signals to the speakers.

Power is supplied to the radio receiver and steering pad switch illumination when the light control switch is in the tail or head position.

This circuit sends an operation signal from the steering pad switch to the radio receiver.

If there is an open in the circuit, the audio system cannot be operated using the steering pad switch.

If there is a short in the circuit, the resulting condition is the same as if the switch were continuously depressed. Therefore, the audio system cannot be operated using the steering pad switch, and the audio system itself cannot function.

Speed signals are received from the combination meter assembly and used to cancel "Bluetooth" function operation.

The radio receiver assembly recognizes that the vehicle is being to driven and makes it impossible to connect or register a "Bluetooth" device while driving.

Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.

Check if the portable player is "Bluetooth" audio compatible.

Check if a registered portable player can be deleted normally.

Check if the portable player is registered as a connected device.

Check that the same problem does not occur in the sound heard from the speakers on another "Bluetooth" audio compatible vehicle of the same model.