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AV-252 < SYMPTOM DIAGNOSIS > [WITH NAVIGATION] MULTI AV SYSTEM SYMPTOM DIAGNOSIS MULTI AV SYSTEM Symptom Table INFOID:0000000010714913 RELATED TO NAVIGATION NOTE: Symptoms Check items Probable malfunction location / Action to take Display does not turn ON. All switches cannot be operated. • NAVI control unit power supply and ground circuit. • Disconnect the battery negative ter- minal. Reconnect the terminal. If the . All switches can be operated. Disconnect the battery negative termi- All switches cannot be operat- Display does not turn ON. • NAVI control unit power supply and ground circuit. • Disconnect the battery negative ter- minal. Reconnect the terminal. If the . Display turn ON. Disconnect the battery negative termi- Only specified switch cannot be – Disconnect the battery negative termi- Map screen is not displayed. • Check that the map SD card is in the SD • Check “SD Card Ac- cess” in “SERVICE “OK” is displayed for “SD Disconnect the battery negative termi- “OK” is not displayed for “SD Disconnect the battery negative termi- Voice guidance is not heard * Check that the map “OK” is displayed for SD Disconnect the battery negative termi- Check “SD Card Ac- “OK” is not displayed for SD Disconnect the battery negative termi- |