Picture is missing a color or tone NOTE:

- 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.

1. Go into the Diagnostic Menu and use ‘‘RGB Color'' test under Monitor Check.

Are the red, green, and blue colored circles shown?

YES | - | The system is OK at this time.■
NO | - | Go to Step 2 .

1. Turn the ignition switch to OFF.

1. Disconnect the navigation unit connector A (20P) and display unit 20P connector.

1. Check for loose terminals at navigation unit connector A (20P) and display unit 20P connector.

Are there loose terminals?

YES | - | Repair the terminal.■
NO | - | Go to Step 5 .

1. Check for continuity between the appropriate terminals of navigation unit connector A (20P) to display unit connector B (20P) based on the missing color(s).

   Missing color | Navigation unit connector A (20P) | Display unit connector B (20P) | Wire color
   --- | --- | --- | ---
   Blue | A11 | B18 | YEL
   Green | A2 | B9 | RED
   Red | A1 | B8 | WHT

Is there continuity?

YES | - | Go to Step 6 .
NO | - | There is an open in the circuit between the display unit and the navigation unit. Check for poor connections or loose terminals at the display and navigation units. If a poor connection or loose terminal is found, replace the affected shielded harness.■