Navigation cannot control A/C NOTE:

- Always check the connectors for poor connections or loose terminals.
- Verify that the correct navigation unit is installed for this model. Go into the Diagnostic Menu and use ‘‘Version''.

1. Go into the Diagnostic Menu and use the ‘‘Navi System Link'' test.

Is ‘‘Climate'' icon red?

YES | - | Do the climate control system troubleshooting.■
NO | - | Check for an open or short to ground between display unit connector A (5P) terminals No. 2, No. 3 No. 4 and climate control unit connector A (16P) terminals No. 16, No. 15, No. 8. If OK, check the climate control system for normal operation. If the climate control system works properly, substitute a known-good display unit and recheck.■