FORD 2001 Focus - Manual (Page 185)

Roadside emergencies
185
3. Park the booster vehicle close to
the hood of your disabled vehicle,
making sure the two vehicles do
not touch. Set the parking brake on
both vehicles and stay clear of the
engine cooling fan and other
moving parts.
4. Check all battery terminals and
remove any excessive corrosion
before you attach the battery
cables.
5. Turn the heater fan on in both
vehicles to protect from electrical
surges. Turn all other accessories
off.
Connecting the jumper cables
1. Connect the positive (+) booster
cable to the positive (+) terminal of
the discharged battery.
Note: In the illustrations, lightning
bolts are used to designate the
assisting (boosting) battery.