Audio Unit Component Function Check

Audio Unit: Component Function Check

Starting the Self-Diagnosis Mode

1 Turn ignition switch from OFF to ACC.
2 Press and hold the "DISP/CLOCK" switch and turn the volume control dial clockwise or counterclockwise for 30 clicks or more.





Then the self-diagnosis operates. A single beep indicates self-diagnosis mode is active.
3 Initially, all display segments will be illuminated.
4 Press each switch. When each switch is pressed, its name and communication code will be displayed

NOTE:
CD player LOAD and EJECT buttons are not included in this test and will not change the display when pressed.

Diagnosis Function

- It can check for continuity of the switches by sounding the beep when each audio unit switch and steering wheel audio control switch is pressed.
- It can check for continuity of harness between audio unit switch and steering wheel audio control switch.

Exiting the Self-Diagnosis Mode

Turn ignition switch OFF. Then the self-diagnosis ends.