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 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 System Diagnostic Mode Navigation System Diagnostic Mode Part One, and use Version Navigation System Diagnostic Mode Part One.
- Check any official Honda service website for more service information about the navigation system.

1. Turn the headlights on, 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 2.

2. Cover the sunlight sensor on the dash, then turn the headlights on and off.

Does the navigation display dim and brighten normally?

YES -

The system is OK at this time.�

NO -

Check the NAVI ILLUMI+ circuit for an open or short to ground between the navigation display to the gauge control module. If OK, substitute known-good units in this order and recheck the system:

- Audio-navigation unit Audio-Navigation Unit Removal/Installation.�
- Climate control unit Service and Repair.�
- Gauge control module Service and Repair.�