Fuse/Relay
LocationFuse Amp
RatingProtective Circuits
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 Restraints control module
33 10A Not used (Spare)
34 5A Not used (spare)
35 10A Rear park assist, 4x4, rear video
camera
36 5A PATS transceiver
37 10A Climate control
38 20A Subwoofer/Amp (Audiophile
radio), THX Amp/DSP
39 20A Radio
40 20A THX Amp/DSP
41 15A Power windows, Power vents,
Power moonroof, Auto dimming
rear view mirror
42 10A Not used (Spare)
43 10A Rear wiper logic, Rain sensor
44 10A Trailer tow battery charge 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
2009 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
Roadside Emergencies
291
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 — PCM power relay
2 — Starter relay
3 — Not used
4 — Trailer tow relay
2009 Navigator(nav)
Owners Guide, 1st Printing
USA(fus)
Roadside Emergencies
292
