A/C and AV Switch Self-Diagnosis Function
A/C and AV Switch Self-Diagnosis FunctionDESCRIPTION
It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the steering switch (audio).
Starting the Self-Diagnosis Mode
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the witches "MUTE/II " and "PREV" simultaneously for 3 seconds.
Then the self-diagnosis operates.
Exiting the Self-Diagnosis Mode
Turn ignition switch OFF. Then the self-diagnosis ends.
Diagnosis Function
- It can illuminate all the indicators (LED) in the A/C and AV switch.
- It can check for continuity of the switches by sounding the buzzer when the A/C and AV switch is pressed.
- It can check for continuity of harness between A/C and AV switch and steering switch (audio).