Circuit/System Description

The driver information center (DIC) switch are normally open momentary switch. The instrument panel cluster (IPC) interfaces with the driver information center (DIC) switch(es) via a discreet circuit. The DIC switch signal circuit is pulled up to battery voltage in the IPC. The switch input to the cluster is pulled low or grounded when a switch is activated. The IPC reads the voltage at the analog input to determine which switch is pressed. The switch input to the cluster is set up in a resistor ladder format. The DIC switch include the INFO and the SET/RESET switches. A simultaneous press and hold of the INFO and SET/RESET switch activates the MENU switch. The MENU switch is the third embedded switch used to activate the various DIC personalization menus.