Page 17 of 660

Fuses
Fuse Precautions.........................................401
Under Hood Fuse Box................................401
Body Control Module Fuse Box..............408
Identifying Fuse Types................................413
Fuses – Troubleshooting...........................413
Maintenance
Maintenance Precautions..........................414
Opening and Closing the Hood...............414
Under Hood Overview................................415
Engine Oil.......................................................417
Checking the Coolant.................................418
Engine Air Filter...........................................423
Changing the Fuel Filter............................424
Changing the 12V Battery.........................424
Adjusting the Headlamps..........................427
Exterior Bulbs...............................................428
Interior Bulbs................................................428
Drive Belt Routing.......................................428
Vehicle Care
Cleaning Products......................................429
Cleaning the Exterior.................................430
Cleaning the Interior...................................432
Repairing Minor Paint Damage................434
Waxing Your Vehicle...................................434
Storing Your Vehicle
Preparing Your Vehicle for Storage........435
Removing Your Vehicle From Storage......................................................................436
Wheel and Tire Information
Locating the Tire label...............................437
Department of Transportation Uniform TireQuality Grades.........................................437
Information on the Tire Sidewall.............438
Glossary of Tire Terminology...................443
Tire Replacement Requirements.............444
Using Snow Chains.....................................446
Tire Care
Checking the Tire Pressures....................449
Inflating the Tires.........................................449
Inspecting the Tire for Wear.....................449
Inspecting the Tire for Damage..............450
Inspecting the Wheel Valve Stems..........451
Tire Rotation..................................................451
Tire Pressure Monitoring System
What Is the Tire Pressure MonitoringSystem.......................................................453
Tire Pressure Monitoring System Overview......................................................................453
Tire Pressure Monitoring SystemPrecautions...............................................454
Tire Pressure Monitoring SystemLimitations................................................455
Viewing the Tire Pressures......................455
Tire Pressure Monitoring System –Troubleshooting......................................455
Changing a Road Wheel
Changing a Flat Tire...................................459
Wheel Nuts...................................................465
Capacities and Specifications
Engine Specifications.................................467
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTable of Contents
Page 405 of 660
FUSE PRECAUTIONS
WARNING: Always disconnect thebattery before servicing high current fuses.
WARNING: To reduce risk ofelectrical shock, always replace the coverto the power distribution box beforereconnecting the battery or refilling fluidreservoirs.
WARNING: Always replace a fusewith one that has the specified amperagerating. Using a fuse with a higheramperage rating can cause severe wiredamage and could start a fire.
UNDER HOOD FUSE BOX
LOCATING THE UNDER HOOD FUSEBOX
ACCESSING THE UNDER HOOD FUSEBOX
401
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IDENTIFYING THE FUSES IN THE UNDER HOOD FUSE BOX
402
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMFusesE352535
Page 407 of 660
Protected ComponentRatingItem
Body control module 1.30 A1
Body control module 2.30 A3
Fuel pump.30 A4
Powertrain control module relay.5 A5
Vehicle power 1.20 A6
Vehicle power 2.25 A7
Vehicle power 3.20 A8
Vehicle power 4.20 A9
Starter relay.30 A11
Front blower motor.40 A13
Horn.20 A15
Windshield washer pump.20 A16
Electronic power assist steering run/start feed.10 A22
Anti-lock brake system run/start feed.10 A23
Powertrain control module.10 A24Transmission control module.
403
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Page 408 of 660
Protected ComponentRatingItem
Rear view camera.10 A25Air quality sensor run/start feed.
Anti-lock brake system pump.50 A28
Anti-lock brake system valves.50 A29
Driver seat motors.30 A30
Passenger seat motors.30 A31
Power point 1.20 A32
Not used.—33
Power point 3.20 A34
Power point 4.20 A35
Inverter.40 A36
Climate controlled seats - passenger side.30 A37
Climate controlled seats - driver side.30 A38
Second row seat module.20 A39
Power running boards.40 A40
Powered liftgate module.30 A41
404
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Page 409 of 660
Protected ComponentRatingItem
Trailer brake control module.30 A42
Lincoln star lamp.5 A43
Power point 5.20 A45
Electric fan 1.50 A47
Electric fan 2.50 A49
Heated rear window.40 A50
Electronic limited slip differential.40 A54
Trailer tow parking lamps relay.30 A55
Trailer tow backup lamps.10 A58
Rear multi-contour seats.20 A59
Four-wheel drive module 1.25 A64
Transmission run/start.15 A67
Left-hand side wiper motor.30 A69
Rear window wiper relay.20 A71
Power folding seat module - third row.50 A73
Four-wheel drive module 2.25 A82
405
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Protected ComponentRatingItem
Auxiliary blower.40 A88
Trailer tow lighting module power.20 A91
Left-hand headlamp.30 A100
Right-hand headlamp.30 A101
Trailer battery charge.30 A107
Not used (spare).20 A108
Fuel injectors.15 A120
Rain sensor module.5 A124
USB smart charger 1.5 A125
Family entertainment system.7.5 A128
Multi-contour seats relay.20 A134
Advanced driver-assistance systems module.20 A137Connected camera.
USB smart charger 2.5 A139
USB smart charger 3.5 A140
USB smart charger 5.5 A142
406
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Protected ComponentRatingItem
Not used (spare).40 A147
Smart data link connector.10 A160
Headlamp control module.5 A181
Driver door control module.60 A182
Passenger door control module.60 A183
Body control module start stop.30 A210
Protected ComponentRelay Number
Electric fan 1 relay.R04
Electric fan 3 relay.R06
407
2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMFuses