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Symptom Troubleshooting [Car-Navigation System]: Overview Mazda CX-5 I

CAR-NAVIGATION SYSTEM DOSE NOT START OPERATION [CAR-NAVIGATION SYSTEM]

Possible DTCEven if the NAVI mode is selected, the car-navigation system screen does not display.
POSSIBLE CAUSENAV switch malfunction Power supply fuse (+B, ACC) burnt out Open or short circuit in power supply (+B, ACC, GND) wiring harness Open or short circuit in power supply (+B, ACC, GND) wiring harness Open or short circuit in wiring harness between audio unit and car-navigation unit communication system Car-navigation unit malfunction Audio unit malfunction

CAR-NAVIGATION SYSTEM DOES NOT OPERATION [CAR-NAVIGATION SYSTEM]

Possible DTCEven if the map screen is touched, the car-navigation system cannot be operated
POSSIBLE CAUSEAudio unit malfunction (bad LCD panel) Car-navigation unit malfunction