How to Troubleshoot the Audio System

How to Troubleshoot the Audio System

The audio system has a self-diagnostic function. To run the self-diagnostic function, do the following:

How to check for audio system condition

1. Turn the ignition switch to ON (II).

2. Turn off the audio unit.

3. Push and hold the No. 1 and No. 6 buttons. While holding the buttons, push the VOL PUSH PWR knob to ON. Release the buttons and the self-diagnostic function begins.

4. By pressing a preset button, the input triggers the diagnostic mode that is assigned to that preset switch.
No. 3 button

Entire LCD lighting/light-out mode: Turns on/off the entire LCD to show the presence or absence of an LCD segment failure.

No. 4 button

Duty (for the Illumination dim) indication mode: Indicates the duty for the Illumination dim.

No. 5 button

Vehicle speed pulse indication mode: Indicates the vehicle speed pulse.

6 Disc or DVD button (Push and hold 5 sec.)

DRAM residual quantity indication mode: Indicates the DRAM residual quantity.

AM or FM button (Push and hold 5 sec.)

Reception level check mode: Indicates the reception level. When entering the reception level check mode, the AM/FM or FM button is used to change the S-METER, OFFSET, MP and USN (A/I).

A.SEL/ROM button

Bus line check mode: The audio communication line is checked between the DSP, EEPROM, and TUNER.











How to Obtain the Audio Unit Serial Number

NOTE: This procedure can only be done when the power has been disconnected from the audio unit, and the audio unit displays CODE.

With the audio unit switched off, push and hold the preset buttons No. 1, No. 6 and the VOL PUSH PWR knob.

The audio unit displays the eight digits of the serial number (example 12345678). Use all eight digits as the serial number when using the iN (interactive network) to get the 5 digit anti-theft code.






Display Specifications

NOTE: Any other diagnostic screens shown are for audio manufacturer's use only.
















Speaker check mode

1. Turn the ignition switch to ON (II).

2. Push and hold the No. 1 and No. 3 buttons. While holding the buttons, push the VOL PUSH PWR knob to ON. Release the buttons and the speaker check mode begins. A tone or low-frequency hum should sound from one speaker.

3. Each time you press the SEEK or CH button, the speaker outputs a beep sound in the listed order.

Display Specifications









NOTE: Any other diagnostic screens shown are for the audio manufactures purpose only.

4. The speaker check mode ends when you turn the audio unit off, or turn the ignition switch to LOCK (0).