You have to remove the passenger airbag and use a flash light and read the 5-digit code then try that code on the keyless pad.
The fuse for your 2002 Ford Explorer Sport is similar to that of the 2001 Ford Explorer Sport.
On my 2001 sport trac it is behjnd the backseat on the module
The height for that 2001 Ford Explorer Sport is 68.2 inches.
Each vehicle has it's own factory keyless entry code
the code p0304 is cylinder 4 misfire detected
According to the 2001 Ford Explorer Sport Owner Guide : (17.5 U.S. gallons / 66.2 litres )
The # 3 engine cylinder has a misfire On a 2001 Ford Explorer Sport Trac the engine cylinder locations are numbered firewall 3 - 6 2 - 5 1 - 4 front of vehicle
On a 2001 Ford Explorer Sport Trac , 4.0 ( the engine oil pump is INSIDE the engine oil pan )
The 2001 Ford Explorer Sport V-6 has a timing belt. Ford engines have not use a timing chain since the 1980s.
# 17 is a 20 amp fuse for the cigarette lighter and Data Link Connector in a 2001 Ford Explorer Sport
For a 2001 Ford Explorer Sport Trac : There are ( 6 spark plugs ) for your 4.0 liter V6 engine
On a ( 2001 ) Ford Explorer Sport Trac it's ( 77.6 liters / 20.5 U.S. gallons )