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

- 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, and use Version.
- Before troubleshooting, make sure you have the anti-theft code.
- After troubleshooting, enter the anti-theft code.
- 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 ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

3. 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 4.

NO -

Go to Interface dial buttons does not work properly troubleshooting Symptom Troubleshooting.�

4. 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 5.

5. Check for error code to the Error History.

Is there a hard error code stored?

YES -

Refer to the hard error code troubleshooting.�

NO -

Go to step 6.

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

7. Disconnect the navigation display unit 32P connector.

8. With the headlight switch on, measure the voltage between body ground and navigation display unit 32P connector terminal No. 16.





Is there battery voltage?

YES -

Substitute a known-good navigation display unit Service and Repair, then reconnect all of the connectors, and recheck. If the symptom/indication goes away, replace the original navigation display unit Service and Repair. If the symptom/indication is still present, replace the gauge control module Service and Repair.�

NO -

Repair an open or short in the wire between the navigation display unit and the gauge control module.�