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Home >> Acura >> 2009 >> MDX V6-3.7L >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Display Day/Night Mode Does Not Work or Does Not Work Properly (With Navigation) >> Symptom Troubleshooting
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Symptom Troubleshooting




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 the check that the dash brightness setting is not set to high.

- Check the connectors for poor connections or loose terminals.

- Before troubleshooting, make sure you have anti-theft codes for the audio system and the navigation system (if equipped).

- After troubleshooting, enter the anti-theft codes for the audio system and the navigation system (if equipped).

- Check for and resolve all CAN DTCs before troubleshooting the navigation system.

- Verify that the correct navigation unit is installed for this model. Go into the Diagnostic mode, and use Version. Navigation System Diagnostic Mode (With Navigation)

- Always make sure that the correct DVD color and version are installed.

- Check any official Honda service website for, more service information about the navigation system.

1. Adjust the A/C using voice commands.

Can you control the A/C by voice command?
YES - Go to step 2.

NO - Do navigation cannot control A/C by voice troubleshooting.


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

Does the navigation display dim and brighten normally?
YES - The system is OK at this time.

NO - Check the ILL+ 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:

- Navigation unit

- Climate control unit

- Gauge control unit



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