2019 FORD F-450 fuse

Air Filter Restriction Gauge
The air filter restriction gauge is in the
upper housing of the air filter assembly.
Check the air filter restriction gauge
whenever you open the hood to carry out
general engine maintenance or at least
every 7,500 mi (12,000 km). If you operate
your vehicle in extremely dusty conditions,
check the gauge at least every 500 mi
(800 km) or two weeks, whichever occurs
first. Change the air filter element when
the restriction gauge reads near the
change filter line and the gauge is yellow.
Allowing the restriction gauge to reach
maximum affects engine performance and
fuel economy. Operating your vehicle in heavy snowfall
or extreme rain conditions may allow
excessive amounts of snow or water into
the air intake system. This could restrict air
flow and cause the engine to lose power
or shut down.
After installing a new air filter element, you
must reset the gauge by pressing the reset
button.
After operating your vehicle during heavy
snowfall or extreme rain, do the following:
•
Snow: At the earliest opportunity, open
the hood and clear any snow and ice
from the air filter housing inlet and
reset the air filter restriction gauge.
• Extreme rain: The air filter element
dries out after approximately 15– 30
minutes of driving at highway speeds.
At the earliest opportunity, open the
hood and reset the air filter restriction
gauge.
Note: Do not remove the foam filter.
CHANGING THE ENGINE-
MOUNTED AND DIESEL FUEL
CONDITIONER MODULE FUEL
FILTERS - 6.7L DIESEL WARNING:
Do not dispose of fuel
in the household refuse or the public
sewage system. Use an authorized waste
disposal facility.
Your vehicle has two fuel filters. The first
filter mounts on top of the engine on the
left-hand side. The second filter is inside
the diesel fuel conditioner module. The
module is attached to the fuel tank in
different locations depending on the
configuration of your truck. See table
below for configurations.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing MaintenanceE226428

AUXILIARY SWITCHES (IF
EQUIPPED)
For maximum vehicle performance, keep
the following information in mind when
adding accessories or equipment to your
vehicle:
• When adding accessories, equipment,
passengers and luggage to your
vehicle, do not exceed the total weight
capacity of the vehicle or of the front
or rear axle (GVWR or GAWR as
indicated on the Safety Compliance
Certification label). Ask an authorized
dealer for specific weight information.
• The Federal Communications
Commission (FCC) and Canadian
Radio Telecommunications
Commission (CRTC) regulate the use
of mobile communications systems
equipped with radio transmitters, for
example, two-way radios, telephones
and theft alarms. Any such equipment
installed in your vehicle should comply
with Federal Communications
Commission (FCC) and Canadian
Radio Telecommunications
Commission (CRTC) regulations, and
should be installed by an authorized
dealer.
• An authorized dealer needs to install
mobile communications systems.
Improper installation may harm the
operation of your vehicle, particularly
if the manufacturer did not design the
mobile communication system
specifically for automotive use.
• If you or an authorized Ford dealer add
any non-Ford electrical or electronic
accessories or components to your
vehicle, you may adversely affect
battery performance and durability. In
addition, you may also adversely affect
the performance of other electrical
systems in the vehicle. The auxiliary switch option package
provides six switches mounted in the
overhead console. These switches operate
when the vehicle is running or from battery
power, depending on the switchable fuse
AUXF4's location in the upfitter relay box.
We recommend, however, that the engine
remain running to maintain battery charge
when using the auxiliary switches for
extended periods of time or higher current
draws.
Note:
When your vehicle has a diesel
engine, use the auxiliary switches only when
the engine is running. The glow plugs also
drain battery power when the ignition key is
in the on position. Using the auxiliary
switches, even for limited amounts of time,
can cause your battery to drain quickly and
prevent your vehicle from restarting.
When switched on, the auxiliary switches
provide electrical battery power for a
variety of personal or commercial uses.
Switches 1 through 4 provide 25 amps.
Switches 5 and 6 provide 40 amps.
The relay box for the auxiliary switches is
in the rear of the engine compartment,
near the back wall. See your authorized
dealer for service.
The relays are coded as shown:
574
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing AccessoriesE220728

The power leads are coded as shown:
Fuse Amp Rating
Wire Color
Circuit Number
Switch
25A
Brown with green
trace
CB117A
AUX 1
25A
Violet with orange
trace
CB114A
AUX 2
25A
Blue with green
trace
CB116A
AUX 3
25A
Gray with brown
trace
CB113A
AUX 4
40A
Brown with blue
trace
CB115A
AUX 5
40A
Gray with orange
trace
CB118A
AUX 6
576
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing AccessoriesE220730

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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing Appendices

C
Cabin Air Filter.................................................151
Capacities and Specifications - 6.2L
................................................................426
Alternative Engine Oil for Extremely Cold
Climates........................................................... 430
Specifications...................................................... 427
Capacities and Specifications - 6.7L Diesel
..............................................................431
Engine Oil Specifications................................ 435
Specifications..................................................... 432
Capacities and Specifications - 6.8L
................................................................437
Alternative Engine Oil for Extremely Cold
Climates............................................................ 441
Specifications..................................................... 438
Capacities and Specifications.................419
Cargo Lamps
...................................................96
Car Wash See: Cleaning the Exterior.............................. 369
Catalytic Converter
......................................194
On-Board Diagnostics (OBD-II)................... 195
Readiness for Inspection and Maintenance (I/M) Testing................................................... 195
Center Console
..............................................170
Changing a Bulb..........................................358 Cargo Lamp and Central High Mounted
Brake Lamp Bulbs......................................... 361
Fog Lamp Bulbs................................................. 359
Front Park and Direction Indicator Lamp Bulbs................................................................. 358
Headlamp Bulbs................................................ 358
LED Bulb............................................................... 359
LED Lamps........................................................... 359
License Plate Lamp Bulb................................. 361
Rear Lamps, Brake Lamps, Rear Direction Indicator and Reversing Lamp
Bulbs................................................................. 360
Changing a Fuse...........................................327 Fuses....................................................................... 327
Changing a Road Wheel..........................406 Dissimilar Spare Wheel and Tire Assembly
Information.................................................... 406
Location of the Spare Tire and Tools.........407
Removing the Spare Tire (With Spare Tire Carrier Only)................................................... 407
Tire Change Procedure................................... 409Changing the 12V Battery.........................354
Battery Management System....................... 355
Changing the Crankcase Vent Filter Element.........................................................337
Changing the Engine Air Filter - 6.2L/ 6.8L.................................................................361
Changing the Engine Air Filter - 6.7L Diesel.............................................................362
Air Filter Restriction Gauge............................ 364
Changing the Engine-Mounted and Diesel Fuel Conditioner Module Fuel
Filters - 6.7L Diesel...................................364
Diesel Fuel Conditioner Module Filter................................................................... 365
Engine-mounted Fuel Filter........................... 367
Changing the Engine Oil and Oil Filter...............................................................336
Engine lubrication for severe service operation.......................................................... 337
Changing the Wiper Blades.....................356
Checking MyKey System Status...............67 MyKey Distance..................................................... 67
Number of Admin Keys...................................... 67
Number of MyKeys............................................... 67
Checking the Wiper Blades.....................356
Child Restraint and Seatbelt Maintenance.................................................45
Child Restraint Positioning.........................35
Child Safety......................................................20 General Information............................................ 20
Child Safety Locks..........................................37 Left-Hand Side...................................................... 37
Right-Hand Side................................................... 37
Cleaning Leather Seats..............................374 With King Ranch Edition.................................. 375
Without King Ranch Edition........................... 374
Cleaning Products
.......................................369
Materials............................................................... 369
Cleaning the Engine.....................................371
Cleaning the Exhaust - 6.7L Diesel.........371
Cleaning the Exterior
..................................369
Cleaning the Headlamps................................ 370
Exterior Chrome Parts...................................... 370
Exterior Plastic Parts........................................ 370
Stripes or Graphics............................................ 370
Underbody........................................................... 370
Under Hood.......................................................... 370
651
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing Index

Launching or Retrieving a Boat or Personal
Watercraft (PWC)........................................ 295
Safety Chains....................................................... 291
Trailer Brakes........................................................ 291
Trailer Lamps...................................................... 294
Trailer Towing Connector................................ 287
When Towing a Trailer..................................... 295
Event Data Recording See: Data Recording............................................ 10
Export Unique Options.................................16
Exterior Mirrors................................................98 Blind Spot Information System.................... 100
Clearance Lamps .............................................. 100
Direction Indicator Mirrors ............................. 100
Fold-Away Exterior Mirrors............................... 98
Heated Exterior Mirrors ................................... 100
Memory Mirrors .................................................. 100
Power Exterior Mirrors........................................ 98
PowerScope ™ Power Telescoping
Mirrors................................................................. 99
Puddle Lamps..................................................... 100
Spot Lamps......................................................... 100
Telescoping Mirrors............................................. 99
Trailer Towing Camera System..................... 100
F
Fastening the Seatbelts
..............................39
Fastening the Cinch Tongue............................ 40
Rear Inflatable Seatbelt..................................... 42
Seatbelt Locking Modes..................................... 41
Using Seatbelts During Pregnancy...............40
Using the Seatbelt with Cinch Tongue (Front Center Seat on Super Cab and
Crew Cab).......................................................... 39
Fire Extinguisher
..........................................305
Flat Tire See: Changing a Road Wheel....................... 406
Floor Mats......................................................300
Fog Lamps - Front See: Front Fog Lamps........................................ 94
Foot Pedals See: Adjusting the Pedals................................. 88
Ford Credit
.........................................................14
US Only..................................................................... 14
Ford Protect...................................................578 Ford Protect Extended Service Plan
(CANADA ONLY)........................................... 579Ford Protect Extended Service Plans (U.S.
Only).................................................................. 578
Four-Wheel Drive
..........................................212
Front Fog Lamps............................................94
Front Seat Armrest......................................163 ........................................................................\
........... 163
Fuel and Refueling
.......................................183
Fuel Consumption........................................192
Advertised Capacity.......................................... 192
Fuel Economy...................................................... 192
Fuel Filter - 6.2L/6.8L.................................353
Fuel Quality - Diesel....................................185 Biodiesel................................................................ 186
Diesel Fuel Additives......................................... 187
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Not Required ..........185
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Required (United
States/Canada/Puerto Rico/U.S. Virgin
Islands And Other Locales) ...................... 185
Fuel Quality - E85........................................184 Choosing the Right Fuel - Flex Fuel
Vehicles............................................................. 184
Switching Between E85 and Gasoline............................................................ 185
Fuel Quality - Gasoline...............................187 Choosing the Right Fuel................................... 187
Fuel Shutoff..................................................305
Fuses.................................................................318
Fuse Specification Chart...........................318 Passenger Compartment Fuse
Panel.................................................................. 324
Power Distribution Box..................................... 318
G
Garage Door Opener
...................................164
Garage Door Opener See: Universal Garage Door Opener...........164
Gauges
.............................................................104
DEF Gauge............................................................ 106
Engine Coolant Temperature Gauge..........106
Engine Oil Pressure Gauge............................. 106
Fuel Gauge............................................................ 106
Transmission Fluid Temperature Gauge................................................................ 106
654
Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201804, Fourth-Printing Index