Driver Information Center (DIC) Description and Operation: Compass
The driver information center (DIC) displays the compass based on serial data message from the BCM. The compass module communicates with the body control module (BCM) through a bi-directional data circuit. The instrument panel cluster (IPC) receives compass information from the BCM via the serial data circuit. The compass is displayed in the DIC with other vehicle information and is centered at the bottom line of the DIC. The compass display is blank when a malfunction is present with the compass module or a compass serial data communication fault exists. The compass displays 'CAL' or 'C' when the compass needs to be calibrated or the compass zone needs to be reset. Cycle the ignition before performing the compass magnetic variation adjustment procedure. The DIC vehicle information switch allows the compass zone to be reset or the compass calibrated.
Check that the compass module is properly installed in the vehicle since this may cause the compass to malfunction. The embossed arrow on the compass module should be parallel to the centerline of the vehicle.