For 1990-2009 cars only
Review the Navigation System Description and Operation in order to familiarize yourself with the system functions. Refer to Navigation System Description and Operation . Then begin the system diagnosis with the Diagnostic System Check - Navigation System . The Diagnostic System Check will provide the following information:
| • | The ability of the navigation radio to communicate with the GPS antenna. |
| • | The identification of any stored diagnostic trouble codes (DTCs) and their status |
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
