Navigation System Symptom Troubleshooting - Vehicle icon wanders across the map when driving (does not follow a displayed road) or spins when driving

Vehicle icon wanders across the map when driving (does not follow a displayed road) or spins when driving NOTE: This symptom is caused by a defective yaw rate sensor. Perform this diagnostic when the vehicle is cold and warm. Go into the Diagnostic Menu and use the ‘‘Yaw Rate'' test. Are the values correct?
YES | - | The system is OK.■
NO | - | Replace the navigation unit. ■