Circuit/System Description

The driver information center (DIC) switch is a multiplexed switch. Battery power is provided to the DIC switch via the instrument panel cluster (IPC) with the DIC switch signal circuit pulled up to battery voltage in the IPC. The switch input to the DIC is pulled low or grounded when a switch is activated. The IPC monitors the DIC switch signal circuit to determine the DIC switch inputs. Each switch state - SET/RESET, GAGES, TRIP ODOMETER, SET/RESET, INFO, FUEL - corresponds to a certain resistance value.