Initial Inspection and Diagnostic Overview

How to Troubleshoot the Audio System

Without Navigation

The audio system has a self-diagnostic function.

How to Obtain the Audio Unit Serial Number

To obtain the audio unit serial number on a vehicle, do the following:

NOTE:

- This procedure can only be performed when the battery power is disconnected from the audio unit and the audio unit displays CODE when the radio is turned on.

- To obtain the navigation unit serial number, refer to Navi ECU in the navigation system diagnostic mode.

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

2. Make sure the audio system is turned off.

3. Push and hold the preset No. 1 and No. 6 buttons.

4. While holding the buttons, push the VOL PUSH PWR knob (A) to ON.

5. Release the buttons and the self-diagnosis begins.






6. The display shows a 8 digit serial number.

7. Use all 8 numbers as the serial number when using the Interactive Network ( iN) to retrieve the 5 digit anti-theft code.

8. To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0).

Eight digits of the serial number (example 12345678)





How to check for audio system condition

NOTE:

- The audio unit must be in the code enter screen before performing the self-diagnostic function.

- 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.

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

2. Make sure the audio system is turned off.

3. Push and hold the preset No. 1 and No. 6 buttons.

4. While holding the buttons, push the VOL PUSH PWR knob (A) to ON.

5. Release the buttons and the self-diagnosis begins.

6. When you are in the self-diagnostic mode, pressing a preset button starts 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 if a LCD segment is stuck on or dead (off). If a LCD segment is stuck on, or is dead, replace the audio unit.

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 indication mode: Indicates the vehicle speed pulse.

FM button (Push and hold 5 sec.)

Reception level check mode: Indicates the reception level (db). When entering the reception level check mode, the AM/FM button is used to change the main/sub antenna.

CD button (Push and hold 5 sec.)

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






7. To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0).

Display Specifications





Speaker check mode

8. Turn off the audio unit.

9. 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 low-frequency hum should sound for about one minute. Change the test speaker by pushing the SKIP button. If you find a speaker(s) with no sound, check the speaker and harness connections. If the connections are good, replace the speaker and retest.

10. To end the self-diagnostic function, turn the audio unit off, or turn the ignition switch to LOCK (0).