Display Day/Night Mode Does Not Work
Display day/night mode does not workNOTE:
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, get the navigation system anti-theft codes.
- After troubleshooting, enter the navigation system anti-theft codes.
- Full brightness on the instrument panel brightness control causes the system to stay in the day mode, even when the lights are on.
1. Turn the headlights on, and adjust the dash light brightness to the middle range.
2. 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.
3. Go into the Diagnostic Menu and use the "Car Status" test to check for an ILL signal.
Is the "ILL" signal OK?
YES - The system is OK.
NO - Check the ILL+ circuit between the navigation unit and No. 7 (7.5 A) fuse in the passenger's under-dash fuse/relay box.