AV Control Unit

DIAGNOSIS SYSTEM (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.