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:

- Check the vehicle battery condition first Battery Test.
- Full brightness on the dashlights brightness control with the head lights turned on causes the system to stay in the day mode, even when the lights are on.
- Turn the headlight on, and check that the dash brightness setting is not set to high.
- Check the connectors for poor connections or loose terminals.
- Always check for and resolve all CAN DTCs before troubleshooting the navigation system.
- Verify that the correct audio-navigation unit is installed for this model. Go into the Diagnostic mode and use Version.
- 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 instrument panel brightness control is not on full brightness. Turn the headlights on, and adjust the dash brightness to the middle range.

3. Change the day/night mode under Setup to Auto and recheck.

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. Go into the System Diagnostic Mode, and use the Car Status test to check for an ILL signal.

Is the ILL signal OK?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).

NO -

Check the ILL+ circuit between the navigation unit and No. 29 (10 A) fuse in the under-dash fuse/relay box.