Component Description: FDIM

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

The FDIM receives CAN messages for all of its displays, which include:

Audio information
Climate control fan speed and temperature setting
Outside air temperature
Compass heading
- The magnetic fields generated by the earth's north and south poles are divided into zones that differ from each other with respect to how the magnetic fields appear. The magnetic north can change by up to 4 degrees between zones and become noticeable across multiple zones. The compass zone must be set to the correct zone for the compass to read accurately. Factors within the vehicle, and outside factors such as bridges, steel structures, tall buildings, and power lines may affect compass accuracy. Calibrating the compass allows the auto-dimming interior rear view mirror (if equipped) or compass module (if equipped) to compensate for vehicle factors that influence the accuracy of the compass heading.