Component Description
WARNING: This page is about a different car, the 2004 Infiniti I35. However, it is still accessible from the selected car via links, so may be relevant.
ASCD steering switch has variant values of electrical resistance to each button. ECM reads voltage variation of switch, and determines which button is operated.
Refer to AUTOMATIC SPEED CONTROL DEVICE (ASCD) SYSTEM for the ASCD function.