Display day/night mode does not work or does not work properly
NOTE:
- Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
- Check if the Day mode color is set to same as the Night mode color (refer to the navigation manual).
- Check the connectors for poor connection or loose terminals.
- Before troubleshooting, make sure you have the anti-theft code for the audio-navigation unit.
- After troubleshooting, enter the anti-theft code for the audio-navigation unit.
- Full brightness on the instrument panel brightness control with the headlights turned on causes the system to stay in the day mode, even when the lights are on.
- 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.
- Change the day/night mode under Set-up 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 3.
- Go into the System Diagnostic Mode, and use the Car Status test (see CAR STATUS
) to check for an ILL signal.
Is the ILL signal OK?
YES -Replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).
NO -Check the ILLUMI+ circuit between the audio-navigation unit and the No. B29 (10 A) fuse in the under-dash fuse/relay box.