Mercury 2005 Mariner Owner's Manual page 514

Roadside Emergencies
Power distribution box
The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle's main electrical systems
from overloads.
Always disconnect the battery before servicing high current
fuses.
To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box before reconnecting the battery or
refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the
Battery section of the Maintenance and Specifications chapter.
The high-current fuses are coded as follows.
Fuse/Relay Fuse Amp
Location Rating
1 —
2 25A*
3 25A*
206
2005 Mercury Mariner (mrn)
Owners Guide (post-2002-fmt)
USA_English (fus)
Power Distribution Box Description
Not used
Headlamp power
High beams, Turn signals, Interior
lamps, Headlamp power