Check Connections With Line Diag Mode

Turn the ignition switch to ACC.
Press the button (b) twice with the button (a) pressed.

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NOTE: Pressing the button (c) for 3 seconds or more, or turning the ignition switch from the OFF to ACC position can exit the Line Diag mode.
{Line Diag} screen is displayed.
Check the connection status with the {Connectivity Check} in the {Line Diag} screen.

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OK: Each connection device is connected properly.

NG: No connection or abnormal connection is detected.

NOTE: Check the external connection terminals (USB 1, 2 and AUX) by connecting a memory for check or a pin jack.