Display Day/Night Mode Does Not Work
Display day/night mode does not workNOTE:
- Check the display setting.
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, make sure you have 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 ignition switch ON (II).
2. 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.
3. Change the day/night mode under Set-up to "Auto" and recheck.
Does the display change to day and night modes when turning the headlight on and off?
YES - The system is OK at this time.
NO - Go to step 4.
4. 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.10 (15 A) fuse in the passenger's under-dash fuse/relay box. If OK, substitute a known-good navigation unit and navigation display unit one at a time, in this order. Recheck the system operation after each unit substitution until the problem is resolved, then replace the malfunction unit.