Possible Causes
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
A no communication fault with the RCM can be caused by:
- damaged wiring, terminals or connectors.
- a faulty data link connector (DLC).
- a faulted RCM.