Without Scan Tool

A/C and AV Switch Self-Diagnosis Function
It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the audio steering wheel switch.

STARTING THE SELF-DIAGNOSIS MODE




1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the switches "1" and "6" simultaneously for 3 seconds.

DIAGNOSIS FUNCTION
The following are checked:
- All the indicators (LED) in the A/C and AV switch.
- Continuity of the switches by sounding the buzzer when the A/C and AV switch and audio steering switch is pressed.
- Continuity of harness between A/C and AV switch and audio steering switch.

NOTE: Rear window defogger switch operation is not checked. (No beep sound even under normal status)

EXITING THE SELF-DIAGNOSIS MODE
- Turn ignition switch OFF.