Q45 V8-4.5L (VK45DE) (2002)
1. Start the engine.
2. Turn the audio system off.
3. While pressing the "INFO" switch, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the self-diagnosis
mode is started, a short beep will be heard.)
Shifting from current screen to previous screen is performed by pressing "PREV" switch.
4. The initial trouble diagnosis screen will be shown, and items "SELF-DIAGNOSIS" and "CONFIRMATION/ADJUSTMENT" will become
selective.
5. When "CONFIRMATION/ADJUSTMENT" is selected on the initial trouble diagnosis screen, the operation will enter the
CONFIRMATION/ADJUSTMENT mode. In this mode, check and adjustment of each item will become possible.