Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Symptom Troubleshooting




Navigation System Symptom Troubleshooting - Navigation cannot control audio system

Navigation cannot control audio system

NOTE:

- Check the vehicle battery condition first Battery Test.
- Verify that the correct navigation unit is installed for this model. Go into the System Diagnostic Mode, and use the Version.
- Check the connectors for poor connections or loose terminals.
- Check any official Honda service website for more service information about the navigation system.

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

2. Make sure the anti-theft code is entered.

3. Turn on the audio system, and check for sound in each mode (AM/FM and CD or DVD).

Is the sound normal?

YES -

Go to step 4.

NO -

Go to Sound Quality Diagnosis Audio System Sound Quality Diagnosis or No sound is heard from the speaker(s) (display is normal) troubleshooting.

4. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Troubleshoot the indicated navigation DTC(s).

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.