The fuses are coded as follows.
Fuse/Relay
Location
Fuse Amp
Rating
Protected Circuits
1
30A
Driver smart window motor
2
15A
Brake on/off switch, Center
high-mounted stop lamp
3
15A
Not used (Spare)
4
30A
Passenger front smart window
motor
5
10A
Keypad illumination, Brake shift
interlock
6
20A
Turn signal lamps
7
10A
Low beam headlamps (left)
8
10A
Low beam headlamps (right)
9
15A
Courtesy lights/Illuminated scuff
plate
Roadside Emergencies
235
2010 MKZ
(378)
Owners Guide, 3rd Printing
USA
(fus)