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NAVIGATION SYSTEM AV-113 C D E F G H I J L M A B AV 2007 Pathfinder NAVIGATION 1. The navigation screen will be shown, and items “Display Longi- 2. Select each switch on “NAVIGATION” screen to display the rele- GPS ROM Contents of ROM (or RAM) in GPS substrate are malfunctioning. ● Location detection accuracy of the navigation ● Perform self-diagnosis. ● When the NAVI control unit is judged normal by self-diagnosis, GPS RTC Clock IC in GPS substrate is malfunctioning. ● Correct time may not be displayed. ● After the power is turned on, the system ● Correct time of error occurrence may not be ″ Error History ″ . ● Perform self-diagnosis. ● When the NAVI control unit is judged normal by self-diagnosis, GPS antenna Malfunctioning connection between GPS substrate in NAVI control ● Navigation location detection performance ● GPS receiving status remains gray. ● Perform self-diagnosis. ● When connection between NAVI control unit and GPS antenna Low voltage The power voltage supplied to the GPS circuit board has ● Navigation location detection performance ● GPS receiving status remains gray. ● Perform self-diagnosis. ● When connection between NAVI control unit and GPS antenna DVD-ROM Malfunctioning NAVI control unit. - Dedicated map DVD-ROM is in the system, but the data cannot be ● The map of a particular location cannot be dis- ● Specific guidance information cannot be dis- ● Map display is slow. ● Guidance information display is slow. ● System has been affected by vibration. ● Is map DVD-ROM damaged, warped, or dirty? – If damaged or warped, the map DVD-ROM is malfunctioning. – If dirty, wipe the DVD-ROM clean with a soft cloth. ● Perform self-diagnosis. ● When NAVI control unit is judged normal by self-diagnosis, the Error item Possible causes Example of symptom Action/symptom WKIA4312E |