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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
RatingPower Distribution Box
Description
1 — Powertrain Control Module (PCM)
diode
2 — Auxiliary battery diode
3 15A* Daytime Running Lamps (DRL)
module, A/C clutch
4 5A* Heated PCV (4.6L and 6.8L
engines)
5 15A* Horn relay
6 20A PCM —fuel injectors
7 60A** Ignition switch, Delayed accessory
delay
8 40A** Trailer tow battery charge relay
9 50A** Modified vehicle power
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
10 30A** Trailer tow electric brake
controller
11 60A** 4-Wheel Anti-lock Brake System
(4WABS)
40A** AdvanceTracwith RSC
12 60A** I/P fuses 29, 34, 35, 40 and 41
13 20A** Fuel pump relay
14 50A** Auxiliary blower relay
15 30A** Main light switch
16 40A** ABS/IVD
17 50A** Blower motor relay (blower
motor)
18 60A** Engine compartment fuses 3, 5
and 26, 23 (diesel) Instrument
panel fuses 26 and 32, PCM start
relay
19 50A** IDM relay (diesel engine only)
20 60A** Auxiliary battery relay (gasoline
engine only), PDB fuses 8 and 24
21 30A** PCM power relay, PDB fuse 27
22 60A** I/P fuses 4, 5, 10, 11, 16, 17, 22
and 23, Circuit breaker 44
2310A* Alternator field (diesel engine
only)
20A* PCM, VMV, HEGO, MAF, EGR,
(gasoline engine only)
24 20A* Trailer tow running lamps and
back-up lamp relays
25 — Not used
26 20A* Trailer tow turn signals
27 10A* PCM KAPWR, Canister vent
(gasoline engine only)
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
28 — Not used
A — Fuel pump relay
B — Horn relay
C — Trailer back-up lamps relay
D — Trailer running lamps relay
E — Trailer battery charge relay
F — IDM relay (diesel only), IVD
(gasoline only)
G — PCM relay
H — Blower motor relay
J — Accessory delay relay
K — Start relay
* Mini fuses ** Maxi fuses
Relay modules
Instrument panel relay module
The instrument panel relay module is located behind the radio in the
center of the instrument panel. Have your authorized dealer service this
module, if required.
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The relays are coded as follows:
Relay location Description
1 Interior lamps
2 Open
3 Open
4 Battery saver
Engine compartment relay module
The engine compartment relay module is located in one of two places
depending on which type of engine your vehicle is equipped with:
•Gasoline engine: driver side of the engine compartment above the
brake master cylinder.
•Diesel engine: passenger side of the engine compartment behind the
power distribution box.
Have your authorized dealer service this module, if required.
The relays are coded as follows:
Relay location Description
1 PCM back-up lamp
2 A/C control
3 Trailer tow right turn
4 Trailer tow left turn
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When a wheel is installed, always remove any corrosion, dirt or
foreign materials present on the mounting surfaces of the wheel
or the surface of the wheel hub, brake drum or brake disc that
contacts the wheel. Ensure that any fasteners that attach the rotor to
the hub are secured so they do not interfere with the mounting
surfaces of the wheel. Installing wheels without correct metal-to-metal
contact at the wheel mounting surfaces can cause the wheel nuts to
loosen and the wheel to come off while the vehicle is in motion,
resulting in loss of control.
Note:Inspect the wheel pilot hole
prior to installation. If there is
visible corrosion in wheel pilot hole,
remove loose particles by wiping
with clean rag and apply grease.
Apply grease only to the wheel pilot
hole surface by smearing a “dime”
(1 square cm) sized glob of grease
around the wheel pilot surface (1)
with end of finger. DO NOT apply
grease to lugnut/stud holes or
wheel-to-brake surfaces.
JUMP STARTING YOUR VEHICLE
The following procedure is for vehicles equipped with a gasoline engine;
if your vehicle is equipped with a diesel engine, refer to the6.0L Power
Stroke Direct Injection Turbo Diesel Owner’s Guide Supplementfor
the proper jump starting procedure.
The gases around the battery can explode if exposed to flames,
sparks, or lit cigarettes. An explosion could result in injury or
vehicle damage.
Batteries contain sulfuric acid which can burn skin, eyes and
clothing, if contacted.
Do not attempt to push-start your automatic transmission
vehicle. Automatic transmissions do not have push-start
capability. Attempting to push-start a vehicle with an automatic
transmission may cause transmission damage.
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Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
automatic transmission must relearn its shift strategy. As a result, the
transmission may have firm and/or soft shifts. This operation is
considered normal and will not affect function or durability of the
transmission. Over time, the adaptive learning process will fully update
transmission operation.
1.Use only a 12–volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehiclesdo nottouch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other moving
parts.
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.
+–+–
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2. Connect the other end of the positive (+) cable to the positive (+)
terminal of the assisting battery.
3. Connect the negative (-) cable to the negative (-) terminal of the
assisting battery.
+–+–
+–+–
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4. Make the final connection of the negative (-) cable to an exposed
metal part of the stalled vehicle’s engine, away from the battery and the
carburetor/fuel injection system.Do notuse fuel lines, engine rocker
covers or the intake manifold asgroundingpoints.
Do not connect the end of the second cable to the negative (-)
terminal of the battery to be jumped. A spark may cause an
explosion of the gases that surround the battery.
5. Ensure that the cables are clear of fan blades, belts, moving parts of
both engines, or any fuel delivery system parts.
Jump starting
1. Start the engine of the booster vehicle and run the engine at
moderately increased speed.
2. Start the engine of the disabled vehicle.
3. Once the disabled vehicle has been started, run both engines for an
additional three minutes before disconnecting the jumper cables.
+–+–
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