Scan Tool Unable To Communicate
WARNING: This page is about a different car, the 2002 Ford Escape, 2001 Mazda Tribute, and 2001 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
See TEST QA: UNABLE TO ACTIVATE SELF-TEST/SCP COMMUNICATION ERROR/DTC NOT LISTED in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.