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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 Relay Blower motor/Variable blower
control (Dual Zone Climate
Control)
2 Relay Electronic Shift-on-the-Fly
(ESOF) Lo-Hi
3 Relay Heater mirror
4 — Not used
5 30A* Trailer Brake Controller (TBC)
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
6 40A* ABS module (Pump)
7 30A* Upfitter auxiliary switch #1
8 30A* Upfitter auxiliary switch #2
9 40A* ABS module (Coil)
10 20A* Cigar lighter
11 20A* Instrument panel power point
12 15A** Brake On/Off (BOO) relay feed
13 5A ** Brake switch, Brake switch relay
coil, SJB module, 4x4 module
14 — Not used
15 — Not used
16 Relay A/C clutch
17 Relay Wipers
18 Relay Fuel Pump Driver Module
(FPDM), Fuel injectors (Gasoline
engines), Diesel Fuel Control
Module (DFCM) (Diesel engine)
19 Relay Back-up lamps, Reverse Sensing
System (RSS), Engine
compartment fuse 63
20 Relay Trailer stop/turn (Left)
21 Relay Trailer stop/turn (Right)
22 Relay Stop lamps, Center
High-Mounted Stop Lamp
(CHMSL), TBC, Customer access
23 15A** Heater mirror, Heated spotted
mirror
24 40A* Blower motor relay
25 — Not used
26 30A* ESOF relay lo-hi
27 50A* Glow Plug Control Module
(GPCM) #1 (Diesel engine only)
28 20A* Heated mirror relay
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4. Check all battery terminals and remove any excessive corrosion before
you attach the battery cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect from any electrical
surges. Turn all other accessories off.
Connecting the jumper cables
1. Connect the positive (+) jumper cable to the positive (+) terminal of
the discharged battery.
Note:In the illustrations,lightning boltsare used to designate the
assisting (boosting) battery.
2. Connect the other end of the positive (+) cable to the positive (+)
terminal of the assisting battery.
+–+–
+–+–
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recommendations ...................374
refill capacities ........................404
Event data recording ....................7
Exhaust fumes ..........................275
F
Fail safe cooling ........................382
Family entertainment system ....51
Fluid capacities .........................404
Fog lamps ....................................89
Four-Wheel Drive vehicles .......294
description ..............................299
driving off road .......................301
electronic shift ................295, 299
indicator light .........................296
lever operated shift ................297
manual locking hubs ..............295
preparing to drive your
vehicle .....................................281
Fuel ............................................383
calculating fuel
economy ..........................138, 388
cap ...........................................385
capacity ...................................404
choosing the right fuel ...........386
comparisons with EPA fuel
economy estimates .................391
detergent in fuel .....................387
filling your vehicle with
fuel ...........................383, 385, 388
filter, specifications ........383, 403
fuel pump shut-off switch .....315
improving fuel economy ........388
octane rating ...................387, 408
quality ......................................387
running out of fuel .................387
safety information relating to
automotive fuels .....................383
Fuel pump shut-off switch .......315Fuses ..................................316–317
G
Gas cap (see Fuel cap) ............385
Gas mileage (see Fuel
economy) ...................................388
Gauges .........................................21
transmission fluid
temperature gauge ...................26
H
Hazard flashers .........................314
Head restraints .................169, 175
Headlamps ...................................89
aiming ..................................91, 93
autolamp system .......................89
daytime running lights .............90
flash to pass ..............................90
high beam .................................90
replacing bulbs ...................97–99
turning on and off ....................89
Heating
heater only system ...................80
heating and air conditioning
system .................................81, 84
Homelink wireless control
system ........................................123
Hood ..........................................368
I
Ignition ...............................272, 408
Illuminated visor mirror ...........105
Infant seats
(see Safety seats) .....................204
Inspection/maintenance (I/M)
testing ........................................393
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Index
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