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NAVIGATION SYSTEM AV-79 C D E F G H I J L M A B AV AUTO CLIMATE CONTROL ● “ATC Automatic Air Conditioner” ATC-48, "Self-diagnosis Function" for the details. SERVICE ● To set Service schedule, change Journey distance with joystick. 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 ● Perform the self-diagnosis. ● When the AV and NAVI control unit is judged normal by self- GPS antenna Malfunctioning connection between GPS substrate in AV and ● Navigation location detection performance ● GPS receiving status remains gray. ● Perform the self-diagnosis. ● When connection between AV and NAVI control unit and GPS Low voltage The power voltage supplied to the GPS circuit board has ● Navigation location detection performance ● GPS receiving status remains gray. ● Perform the self-diagnosis. ● When connection between AV and NAVI control unit and GPS DVD-ROM Malfunctioning AV and 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 the self-diagnosis. ● When AV and NAVI control unit is judged normal by self-diagno- Error item Possible causes Example of symptom Action/symptom SKIA1621E |