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Audio System Self-Diagnostic Function




Audio System Self-Diagnostic Function

How to Obtain the Audio Unit Serial Number and Retrieving the Anti-theft Code with the iN

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

NOTE:

- This procedure can only be done after the power has been disconnected and reconnected to the audio unit, and the audio unit displays CODE when the audio unit is turned on.
- If the audio unit does not display CODE when turned on, remove the No. 23 (10 A) fuse from the under-hood fuse/relay box for 1 minute, then reinstall the fuse.
- To obtain the audio unit serial number, refer to ECU info 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 PWR knob to on.

5. Release the buttons, and the self-diagnosis begins (for 20 seconds).






6. The display shows an 8 digit serial number (example 12345678).





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 system off, or turn the ignition switch to LOCK (0).

The self-diagnostic function also ends if there is no interaction with the audio unit for 20 seconds.

How to check the audio system condition

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:

- Not all self-diagnostic functions appear on all models.
- 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.

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 PWR knob 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 button.

NOTE: Any other diagnostic screens shown are for factory use only.

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

Illumination level indication mode: Indicates the duty cycle for the illumination dimmer control of the gauge assembly.

Gauge dimmer control values:

Headlights off: OFF

Headlights on: 01 (max low) through 22 (max high)

No. 5 button

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

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

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

Canceling the Self-Diagnostic Function

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

Display Specifications

NOTE: Any other diagnostic screen shown are for audio manufacture's use only.

Entry LCD lighting / lights-outs mode (press No. 3 button)

This diagnostic screen checks for segments that may be dead (off) or stuck on.
All the display segments should be on. If any segments are dead (off), replace the audio-HVAC subdisplay unit Audio-HVAC Subdisplay Unit Removal/Installation, or the audio-HVAC display unit Audio-HVAC Display Unit Removal/Installation. When the display segments are all on, press the No. 3 button. The entire display must turn black. If any segments are stuck on, replace the audio-HVAC subdisplay unit Audio-HVAC Subdisplay Unit Removal/Installation, or the audio-HVAC display unit Audio-HVAC Display Unit Removal/Installation.





Illumination level (for the gauge illumination) indication (press No. 4 button)

This diagnostic screen checks the gauge illumination input.
With the headlights on, you should see a values between 1 (max low) and 22 (max high).
When you dim and brighten the gauge with the dimmer knob, you should see this value change accordingly. If it doesn't, check for B-CAN DTCs.






Vehicle speed pulse indication (press No. 5 button)

This diagnostic screen checks that the audio unit is receiving the VSP indication.
When you drive the vehicle, the VSP indicates the signal from the PCM in hertz (Hz) and the vehicle speed in km/h.





Reception level indication (Push and hold 5 sec. AM/FM or FM button)

This diagnostic screen checks the audio units reception level that can be used to check for the audio reception quality.






Speaker Check Mode

NOTE:

- Not all self-diagnostic functions appear on all models.
- There may be other self-diagnostic functions that are for factory use only.
- If no sound is heard from speakers, go to no Sound is heard from the speaker(s), with ELS audio No Sound Is Heard From the Speaker(s) (Display Is Normal) (With ELS Audio System) (With Navigation System), with premium audio No Sound Is Heard From the Speaker(s) (Display Is Normal) (With Premium Audio System) (Without Navigation 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. 3 buttons.

4. While holding the buttons, push the PWR knob to on.

5. Release the buttons, and the speaker check mode begins. A test tone should sound from one speaker as indicated on the display.

6. Each time you press the SEEK/SKIP CATEGORY button, the test moves to the next speaker in the order listed in the table.

NOTE: Adjust the volume level to a comfortable level.






Display Specifications

















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

Communication Connection Check Mode

NOTE:

- Not all self-diagnostic functions appear on all models.
- There may be other self-diagnostic functions that are for factory use only.

1. Turn the ignition switch to ON (II). Turn the audio unit off.

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 PWR knob to on. Release the buttons.

5. Press the No. 6 button, and the communication connection check mode begins.






6. Each time you press the No. 6 button, the communication connection state is displayed in the following order.

NOTE: If the audio-HVAC subdisplay or the audio-HVAC display is blank in all headlight positions, or blank only when the headlights are turned on, check for B-CAN DTCs.

Display Specifications









7. The self-diagnostic function ends when you turn the audio system off, or the ignition switch to LOCK (0).

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