On-Vehicle Testing: Notes
WARNING: This page is about a different car, the 2004 Lincoln Navigator, 2004 Ford Expedition, 2003 Lincoln Navigator, and 2003 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.