Symptom Troubleshooting

Navigation System Symptom Troubleshooting - Display day/night mode does not work or does not work properly

Display day/night mode does not work or does not work properly

NOTE:

- Turn the headlight on, and check that the dash brightness setting is not set to high.
- Check for B-CAN DTCs and resolve them before troubleshooting.
- Verify that the correct audio-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. Press the Day/Night () button to see if the display changes to day and night modes.

Does the display change to day and night modes when pressing the Day/Night button?

YES -

Go to step 3.

NO -

Go to Interface dial buttons do not work troubleshooting Symptom Troubleshooting.

3. Turn the combination lighting switch to the parking light position, and adjust the dash brightness up and down, then to the middle range.

Does the display change to day and night modes when turning the headlights on and off?

YES -

The system is OK at this time.

NO -

Go to step 4.

4. Turn the combination lighting switch to off.

5. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Troubleshoot the indicated navigation DTC(s).

NO -

Go to step 6.

6. Turn the ignition switch to LOCK (0).

7. Disconnect audio-navigation unit connector C (28P).

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

9. Turn the combination lighting switch to the parking light position.

10. With the combination lighting switch in the parking light position, measure the voltage between audio-navigation unit connector C (28P) terminal No. 11 and body ground.





Is there battery voltage?

YES -

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. If the symptom/indication is still present, replace the gauge control module Service and Repair.

NO -

Repair an open in the wire between the audio-navigation unit and the gauge control module.