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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
13 30A** Starter relay power
14 30A** Passenger power seat
1540A** Electric fan
50A** Electric fan (6.2L with max
trailer tow, SVT Raptor)
16 — Not used
17 30A** Trailer brake control
18 30A** Upfitter 1 (SVT Raptor)
19 30A** Upfitter 2 (SVT Raptor)
20 20A** 4x4 module (electronic shift)
21 30A** TT battery charge relay power
22 20A** Cigar lighter
23 — A/C clutch relay
24 — Not used
25 — Vacuum pump relay (3.5L engine)
26 10A* PCM – keep alive power, PCM
relay coil, canister vent solenoid
(3.7L, 5.0L and 6.2L engines)
27 20A* Fuel pump relay power
28 10A* Upfitter 4 (SVT Raptor)
29 10A* 4x4 IWE solenoid
30 10A* A/C clutch
31 15A* Run/start relay power
32 40A** Rear window defroster relay
power, Heated mirror relay power
33 40A** 110V AC power point
34 40A** PCM relay power (3.7L, 5.0L and
6.2L engines)
50A** PCM relay power (3.5L engine)
35 — Not used
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
36 30A** Roll stability control
(RSC)/Anti-lock brake system
(ABS)
37 — TT left stop/turn relay
38 — TT right stop/turn relay
39 — TT back-up lamps relay
40 — Electric fan relay
41 15A* Front camera washer (SVT
Raptor)
42 5A* Run/start coil
43 15A* TT back-up lamp relay power
44 15A* Upfitter 3 (SVT Raptor)
45 10A* Alternator sensor (non-6.2L
engines)
46 10A* Brake on/off (BOO) switch
47 60A** RSC/ABS module
48 20A** Moon roof
49 30A** Wipers
50 — Not used
51 40A** Blower motor relay power
52 5A* Run/start – Electronic power
assist steering, Blower relay coil
53 5A* Run/start – PCM
54 5A* Run/start – 4x4 module, Back-up
lamps, RSC/ABS, TT battery
charge relay coil, Rear window
defroster relay coil, Front camera
washer relay coil (SVT Raptor)
55 — Not used
56 15A* Heated mirrors
57 — Not used
58 — Not used
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
77 10A* PCM – Voltage power 3 (Emission
related powertrain components,
Electric fan relays coil)
78 15A* PCM – Voltage power4–Ignition
coils (3.5L, 3.7L, 5.0L engines)
20A* PCM – Voltage power4–Ignition
coils (6.2L engine)
79 5A* Rain sensor
80 — Not used
81 — Not used
82 — Not used
83 — Not used
84 — Not used
85 — Electric fan relay (low speed)
*Mini fuse **Cartridge fuse
Auxiliary relay box (SVT Raptor only)
The relay box is located in the left rear corner of the engine compartment.
Fuse/Relay
locationFuse amp
ratingDescription
1 — Upfitter 1 relay
2 — Upfitter 2 relay
3 — Upfitter 3 relay
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ENGINE
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal. When washing:
•Take care when using a power washer to clean the engine. The
high-pressure fluid could penetrate the sealed parts and cause
damage.
•Do not spray a hot engine with cold water to avoid cracking the
engine block or other engine components.
•Spray Motorcraft Engine Shampoo and Degreaser (ZC-20) on all parts
that require cleaning and pressure rinse clean. In Canada use
Motorcraft Engine Shampoo (CXC-66-A).
•Cover the highlighted areas to prevent water damage when cleaning
the engine.
•Never wash or rinse the engine while it is hot or running; water in the
running engine may cause internal damage.
•Never wash or rinse any ignition coil, spark plug wire or spark plug
well, or the area in and around these locations.
3.7L engine
Cleaning
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IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
3.7L V6 engine
1. Windshield washer fluid reservoir
2. Battery
3. Engine oil dipstick (out of view)
4. Brake fluid reservoir
5. Engine coolant reservoir
6. Air filter assembly
7. Engine oil filler cap (out of view)
8. Power distribution box
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5.0L V8 engine
1. Windshield washer fluid reservoir
2. Battery
3. Engine oil filler cap
4. Engine oil dipstick
5. Brake fluid reservoir
6. Engine coolant reservoir
7. Air filter assembly
8. Power distribution box
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6.2L V8 engine
1. Windshield washer fluid reservoir
2. Engine oil dipstick
3. Brake fluid reservoir
4. Engine coolant reservoir
5. Air filter assembly
6. Power steering fluid reservoir
7. Power distribution box
8. Engine oil filler cap
9. Battery
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3.5L V6 EcoBoost™ engine
1. Windshield washer fluid reservoir
2. Battery
3. Engine oil filler cap
4. Engine oil dipstick
5. Brake fluid reservoir
6. Engine coolant reservoir
7. Air filter assembly
8. Power distribution box
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Maintenance and Specifications
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