Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment
Fuse Panel Description
19 10A Auxiliary Powertrain Control Module
(APCM) (Diesel only), Instrument Cluster,
GEM Module, Overdrive Cancel Switch, Idle
Validation Switch (Diesel only), Overhead
Console, Diesel PCM via Clutch
20 15A Starter Motor Relay Coil, Clutch Switch
21 — Not Used
22 10A Air Bag Module, Passenger Air Bag
Activation/Deactivation Switch, Blower
Motor Relay Coil
23 — Not Used
24 10A A/C Clutch, Blend Door Actuator, Trailer
Tow Battery Charge Relay Coil, Four Wheel
Anti-Lock Brake System (4WABS), Turn
Signal
25 — Not Used
26 — Not Used
27 10A
Ignition Run Power Feed (Customer Access)
28 10A Brake Shift Interlock, DRL Relay Coil,
Speed Control Module, Backup Lamps,
Trailer Tow Backup Lamp Relay Coil,
Electronic Shift On The Fly Hub Lock
Solenoid, Vacuum Pump Motor
29 5A Instrument Cluster (Charge and Airbag
Warning Lamps)
30 30A PCM Relay Coil, Ignition Coil (Gasoline
only), Fuel Heater (Diesel only), Wastegate
Solenoid (Diesel only), Injector Driver
Module Relay Coil (Diesel only)
31 — Not Used
Relay 1 — Interior Lamp Relay
Relay 2 — Not Used
Relay 3 — Horn
Relay 4 — Power Window One Touch Down Relay
Relay 5 — Accessory Delay Relay
Roadside emergencies
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The high-current fuses and relays are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
1 7.5A * Trailer Tow Left Stop/Turn Lamp
2 10A* Washer Pump
3 7.5A* Trailer Tow Right Stop/Turn Lamp
4 20A* Trailer Tow Backup Lamps, Trailer Tow
Park Lamps
5 20A* (Gasoline
only)
5A* (Diesel only)Gasoline only-PCM, Fuel Pump Relay Coil,
Mass Air Flow Sensor, Fuel Injectors
Diesel only-Dual AlternatorAField
6 10A* Gasoline only-A/C (CASS)
Diesel only-Single or Dual Alternator
AField, Regulator
7 20A* (Gasoline
only)
5A* (Diesel only)
Gasoline only-Vapor Management Valve,
HEGO Sensors, Intake Manifold
Communication Control, EVR Solenoid,
PCM, Canister Vent Solenoid
Diesel only-Dual AlternatorAField
8 15A* Trailer Tow Electronic Brake
Illumination, Park Lamps, Trailer Tow
Park Lamp Relay Coil
9 10A* Left Headlamp (Low Beam)
10 20A* Power Point
11 10A* Right Headlamp (Low Beam)
12 15A* Daytime Running Lamps (DRL)
Resistor
13 30A** Multi-function Switch, Headlamps
14 60A** Anti-Lock Brake System
15 — Not Used
16 30A** Trailer Tow Battery Charge
17 30A** Electronic Shift On The Fly Relay,
Transfer Case Shift Motor
18 30A** Power Seat
19 20A** Fuel Pump Motor, PCM
20 50A** Ignition Switch (B4 & B5)
Roadside emergencies
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
21 50A** Ignition Switch (B1 & B3)
22 50A** Junction Box Battery Feed
23 40A** Blower Motor
24 30A**
(Gasoline only)
20A**
(Diesel only)PCM Power
25 30A*** Power Windows
26 20A** If equipped with Remote Keyless
Entry-Driver Door Unlock Relay Coil,
All Door Unlock Relay Coil, All Door
Lock Relay Coil, Park Lamp Flash
Relay, If not equipped with Remote
Keyless Entry-Power Door Lock Motors
27 - (Gasoline only)
30A**
(Diesel only)Gasoline only-Not Used
Diesel only-Injector Driver Module
28 30A** Trailer Tow Electronic Brake Controller
29 20A** Radio
30 -- PCM Power Relay
31 -- Blower Motor Relay
32 --
A/C CASS (Gasoline only), Injector Driver
Module Power Relay (Diesel only)
33 -- Washer Pump Relay
34 -- Windshield Wiper Park/Run Relay
35 -- Windshield Wiper HI/LO Relay
36 -- A/C Clutch Diode
37 -- PCM Diode
38 -- Trailer Tow Backup Lamp Relay
39 -- Trailer Tow Battery Charge Relay
40 -- Electronic Shift On The Fly Relay #1
41 — Electronic Shift On The Fly Relay #2
* Mini Fuses ** Maxi Fuses ***Circuit Breaker
Roadside emergencies
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SERVICE RECOMMENDATIONS
To help you service your vehicle:
•We highlight do-it-yourself items in the engine compartment for easy
location.
•We provide a Scheduled Maintenance Guide which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
necessary parts and service. Check your “Warranty Guide” to find out
which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
Be especially careful when inspecting or servicing your vehicle.
•Do not work on a hot engine.
•When the engine is running, keep loose clothing, jewelry or long hair
away from moving parts.
•Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
•Keep all lit cigarettes, open flames and other lit material away from
the battery and all fuel related parts.
If you disconnect the battery, the engine must “relearn” its idle
conditions before your vehicle will drive properly, as explained in the
Batterysection in this chapter.
Working with the engine off
•Automatic transmission:
1. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
2. Turn off the engine and remove the key.
3. Block the wheels to prevent the vehicle from moving unexpectedly.
•Manual transmission:
1. Set the parking brake.
2. Depress the clutch and place the gearshift in 1 (First).
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IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
5.4L V8/6.8L V10 gasoline engines
Refer to the7.3 Liter Power Stroke Direct Injection Turbo Diesel
Owner’s Guide Supplementfor diesel engine component locations.
1. Engine oil dipstick
2. Clutch fluid reservoir (manual transmission)
3. Brake fluid reservoir
4. Power distribution box
5. Power steering fluid reservoir
6. Air filter assembly
7. Engine coolant reservoir
8. Windshield washer fluid reservoir
9. Battery
10. Engine oil filler cap
11. Transmission fluid dipstick (automatic transmission)
910111234
867
5
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capacity ...................................222
choosing the right fuel ...........204
comparisons with EPA fuel
economy estimates .................210
detergent in fuel .....................205
filling your
vehicle with fuel .......202,206,207
filter, specifications .........206,222
fuel pump shut-off switch .....146
gauge .........................................17
improving fuel economy ........207
low fuel warning light ..............10
octane rating .............204,227,228
quality ......................................205
running out of fuel .................205
safety information relating to
automotive fuels .....................202
Fuses ...................................147,148
Gas cap (see Fuel cap) ............206
Gas mileage
(see Fuel economy) .................207
Gauges .........................................16
battery voltage gauge ...............19
engine coolant
temperature gauge ...................17
engine oil pressure gauge ........19
fuel gauge ..................................17
odometer ...................................18
speedometer .............................17
tachometer ................................19
trip odometer ............................18
GAWR
(Gross Axle Weight Rating) .....132
calculating ...............................134
definition .................................132
driving with a heavy load ......132
location ....................................132
GVWR (Gross
Vehicle Weight Rating) .............132
calculating ........................132,134
definition .................................132
driving with a heavy load ......132location ....................................132
Hazard flashers .........................146
Headlamps ...................................25
aiming ......................................217
daytime running lights .............25
flash to pass ..............................26
high beam ............................14,25
replacing bulbs ................212,213
turning on and off ....................25
warning chime ..........................16
Heating ........................................27
heater only system ...................27
heating and
air conditioning system ............29
Hood ..........................................174
Ignition ................................227,228
positions of the ignition ...........55
removing the key ....................122
Infant seats (see Safety seats) ..98
Inspection/
maintenance (I/M) testing .......211
Instrument panel
cleaning ...................................220
cluster .................................10,220
lighting up
panel and interior .....................26
location of components ............10
Jump-starting your vehicle ......166
Keys
key in ignition chime ...............16
positions of the ignition ...........55
removing from the ignition ....122
Lamps
autolamp system .....................212
bulb replacement
specifications chart ................216
cargo lamps ...............................26
daytime running light ...............25
headlamps .................................25
headlamps, flash to pass ..........26
instrument panel, dimming .....26
Index
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