For Component Replacement
WARNING: This page is about a different car, the 1999 Ford RV Cutaway, 1999 Ford Econoline, 1999 Ford E450 Super Duty, and 1999 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Record pre-set radio frequencies for reprogramming (if equipped). Disconnect battery(s). Follow appropriate procedure. See SINGLE BATTERY, DUAL BATTERY (DIESEL) or DUAL BATTERY (GASOLINE). Wait at least one minute for back-up power supply to deplete stored energy. Disconnect battery-to-starter relay cable.