Fuse/Relay
LocationFuse Amp
RatingProtective Circuits
24 20A Horn
25 10A Demand lamps, Glovebox, Visor
26 10A Instrument panel cluster
27 20A Ignition switch
28 5A Radio
29 5A Instrument panel cluster
30 5A Not used (spare)
31 10A Not used (spare)
32 10A Airbag module
33 10A Not used (spare)
34 5A Not used (spare)
35 10A Rear park assist, 4x4, Rear video
camera, 2nd row heated seats
36 5A Passive anti-theft system
37 10A Climate control
38 20A Subwoofer, THX amplifier
39 20A Radio
40 20A THX amplifier
41 15A Power windows, Power vents,
Power moon roof, Auto dimming
rear view mirror, 110V AC power
point
42 10A Not used (spare)
43 10A Rear wiper logic, Rain sensor
44 10A Trailer tow battery charge relay
coil
45 5A Front wiper logic
46 7.5A Climate control, Auxiliary relay
control
47 30A Circuit
BreakerPower windows, Moon roof
48 — Delayed accessory relay
Roadside Emergencies
270
2012 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
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.
WARNING:Always disconnect the battery before servicing high
current fuses.
WARNING: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
Batterysection of theMaintenance and Specificationschapter.
The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
1 — Powertrain control module
(PCM) relay
2 — Starter relay
3 — Blower motor relay
Roadside Emergencies
271
2012 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
