Principles of Operation: Notes
WARNING: This page is about a different car, the 2006 Mercury Mountaineer and 2006 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The vehicle has 2 module communications networks:
- High speed controller area network (CAN)
- Medium speed CAN
The diagnostic tool connects to the communications networks through the data link connector (DLC). The DLC allows a diagnostic tool access to diagnose and test the vehicle systems of any module on the communications networks.
Both communications networks are connected to the DLC. This makes diagnosis and testing of these systems easier by allowing one diagnostic tool to be able to diagnose and control any module on either communications networks from one common connector. The DLC can be found under the instrument panel between the steering column and the driver door.