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.
- Verity that the correct navigation unit is installed for this model. Go into the System Diagnostic Mode and use Version.
- Make sure that the correct navigation DVD color and version are installed.
- Inspect the navigation DVD for dirt or damage.
- Check any official Honda service website for more service information about the navigation system.

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

2. 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 3.

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

Is the ILL signal OK at this time?

YES -

The system is OK at this time.�

NO -

Check the ILL+ circuit for an open or a 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:

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