The high-current fuses are coded as follows:
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
1
—
Not used
2
—
Blower motor relay
3
—
Not used
4
—
Not used
5
40A**
Cooling fan (vehicles with trailer
tow)
60A**
Cooling fan (vehicles without trailer
tow)
6
40A**
Cooling fan (trailer tow only)
7
30A**
Rear heated seats
8
10A*
Alternator
9
20A*
Trailer tow parking lamps
10
—
Not used
11
—
Trailer tow parking lamp relay
12
—
Not used
13
—
Not used
14
—
Not used
Roadside Emergencies
234
2010 MKX
(mkx)
Owners Guide, 3rd Printing
USA
(fus)