How to Check the Audio System Condition: Notes

The audio system has a self-diagnostic function to help find problems with the audio system. To run the self-diagnostic function, do the following:

NOTE:

There may be other self-diagnostic functions that are for factory use only.
The self-diagnostic function does not find every problem with the audio system. Check any official Honda service website for more information about the audio system.

Turn the ignition switch to ON (II).
Make sure the audio system is turned off.
Press and hold the preset No. 1 and No. 6 buttons.
While holding the buttons, press the PWR button to on.
Release the buttons, and the self-diagnostic begins (for 20 seconds).

Fig 1: Identifying Audio System Buttons
Courtesy of AMERICAN HONDA MOTOR CO., INC.
When you are in the self-diagnostic mode, pressing a preset button starts the diagnostic mode that is assigned to that preset button.
NOTE: Any other diagnostic screens shown are for factory use only.

No. 2 button

Audio button, knob, and audio remote switch detection: Allows individual manual selection of all audio panel knobs, buttons, and remote switches to verify if they are functional. When properly detected, the selected knob, button, or audio remote switch name and/or value is displayed (except PWR button). You cannot exit this test. If you need to check other items with the self-diagnostic function, go to step 7 to exit the self-diagnostic function, then start again at step 1.

NOTE: The CD eject button does not work in this test, but when you press it, the CD eject mechanism should hum faintly.

No. 3 button

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

No. 4 button

Duty indication mode (for the illumination dim): Indicates the duty for the illumination dim when the dash lights are on.

No. 5 button

Vehicle speed pulse (VSP) indication mode: Indicates the vehicle speed pulse in hertz (Hz) and in speed (km/h).

CD button (Press and hold 5 sec.)

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

FM/AM button (Press and hold 5 sec.)

Reception level indication mode: Indicates the reception level (dB) with the antenna amplifier on. Press the RDM/A.SEL button to turn the antenna amplifier off.

Canceling the Self-Diagnostic Function
To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0), or it will end by itself if no operation is done for 20 seconds.