Check Each Connection (Display Audio)

Turn the ignition switch to ON, and then while pressing the buttons (a) and (b), press and hold the button (c) for 3 seconds or more.

Fig 1: Screen Display - Buttons
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The display will switch to the Line Diag screen.

Fig 2: Screen Display - Line Diag Menu
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CHECK MICROPHONE
Check that "OK" is displayed in MIC.

OK: Normal.

NG: Abnormal. Check the signal line connection. If there are no problems, the unit could be faulty.
CHECK REARVIEW CAMERA
Check that "OK" is displayed in Rr_CAM.

OK: Normal.

NG: Abnormal. Check the signal line connection. If there are no problems, the unit could be faulty.
CHECK AUX
Check that "OK" is displayed in AUX.

OK: Normal.

NG: Abnormal. Check the signal line connection. If there are no problems, the unit could be faulty.
CHECK USB
Check that "OK" is displayed in USB when USB memory is connected.

NOTE: When USB memory is connected, it takes approximately 2 seconds for audio unit to recognize the USB memory.

OK: Normal.

NG: Abnormal. Check the signal line connection. If there are no problems, the unit could be faulty.