Driver Information Center (DIC) Description and Operation: Odometer

The instrument panel cluster (IPC) displays the odometer in the driver information center (DIC) based on vehicle speed information from the ECM. The ECM sends the vehicle speed data to the IPC via the serial data circuit. The IPC calculates and stores the vehicle odometer. When a new valid vehicle speed information is received from the ECM, the IPC calculates and updates the odometer display in the DIC and stores the new reading in non volatile memory. The DIC displays the vehicle odometer information in either miles or kilometers.