For 1990-2009 cars only
Important: The following steps must be completed before using the symptom tables.
| • | Perform the Diagnostic System Check - Navigation System before using the Symptom Tables in order to verify that all of the following are true: |
| - | There are no DTCs set. |
| - | The control module(s) can communicate via the serial data link. |
| • | Review Navigation System Description and Operation in order to familiarize yourself with the system functions. |
Visual/Physical Inspection
| • | Inspect for aftermarket devices which could affect the operation of the navigation system components. Refer to Checking Aftermarket Accessories in Wiring Systems. |
| • | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
No Global Positioning System (GPS) Reception
Navigation System - Vehicle Position Indicator Inoperative or Erratic
