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Fuse box diagram (fuse layout), location, and assignment of fuses and relays Lincoln Navigator Mk1 (UN173) (1997, 1998).
Checking and Replacing Fuses
Fuses and circuit breakers protect your vehicle’s electrical system from overloading. If electrical components in the vehicle are not working, a fuse may have blown. Check the appropriate fuses before replacing any electrical components.
Look carefully at the fuse – a broken wire within the fuse identifies blown fuses. If you are not sure or if it is too dark to see, try replacing the suspected fuse with one of the same value that you know is good.
In case if you do not have a spare fuse, in an emergency you can pull out fuses, which may be dispensable for normal driving (for example, audio system, cigarette lighter, OBD, seat heater, and the like), and use it if its amperage rating is the same.
Notice
- Always switch off the ignition system and the affected electrical circuit before replacing a fuse.
- Always disconnect the battery before servicing high current fuses.
- Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse, even as a temporary fix. This can cause extensive damage or even fire.
- If the replaced fuses blows again – contact a qualified and equipped service center.
Passenger Compartment Fuse Box Diagram
The fuse panel is located below and to the left of the steering wheel by the brake pedal. Remove the panel cover to access the fuses. To remove a fuse use the fuse puller tool provided on the fuse panel cover.
| № | A | Circuit Protected |
|---|---|---|
| 1 | 20 | Trailer Tow Running Lamp Relay, Trailer Tow Backup Lamp Relay |
| 2 | 10 | Air Bag Diagnostic monitor |
| 3 | 30 | All Unlock Relay, All Lock Relay, Driver’s Unlock Relay |
| 4 | 15 | Air Suspension Service Switch |
| 5 | 20 | Horn Relay |
| 6 | 30 | Radio, Premium Sound Amplifier, CD Changer, Rear Integrated Control Panel, Sub-Woofer power |
| 7 | 15 | Main Light Switch, Park Lamp Relay |
| 8 | 30 | Main Light Switch, Headlamp Relay, Multi-Function Switch |
| 9 | 15 | Daytime running lamps (DRL) Module, Fog Lamp Relay |
| 10 | 25 | I/P Auxiliary Power Socket |
| 11 | 25 | Console Auxiliary Power Socket |
| 12 | 10 | Rear Wiper Up Motor Relay, Rear Wiper Down Motor Relay |
| 13 | 30 | Auxiliary A/C Relay |
| 14 | 60 | 4 Wheel Anti-Lock Brake System (4WABS) Module |
| 15 | 50 | Air Suspension Solid State Compressor Relay |
| 16 | 40 | Trailer tow battery Charge Relay, Mini Fuse Block (fuse 2), Trailer Tow Right Turn Relay, Trailer tow Left Turn Relay |
| 17 | 30 | Transfer Case Shift Relay, Torque on Demand Relay |
| 18 | 30 | Memory Seat Module |
| 19 | 20 | Fuel Pump Relay |
| 20 | 50 | Ignition Switch |
| 21 | 50 | Ignition Switch |
| 22 | 50 | Junction Box Fuse/Relay Panel Battery Feed |
| 23 | 40 | I/P Blower Relay |
| 24 | 30 | PCM Power Relay, Mini Fuse Block (fuse 1), Powertrain Control Module |
| 25 | 30 | Circuit Breaker: Junction Box Fuse/Relay Panel, ACC Delay Relay |
| 26 | 30 | Passenger Power Seat Control Switch |
| 27 | 40 | Junction Box Fuse/Relay Panel, Heated Grid Relay |
| 28 | 30 | Trailer Electronic Brake Control |
| 29 | 30 | RPO Relay Block, Vent Window/Moonroof Relay |
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Engine Compartment Fuse Box Diagram
The power distribution box is located in the engine compartment near the battery. The power distribution box contains high-current fuses that protect your vehicle’s main electrical systems from overloads.
| № | A | Circuit Protected |
|---|---|---|
| 1 | 15 | Flasher Relay |
| 2 | 5 | Instrument Cluster, Overhead Trip Computer (OTC) Module, Redundant Steering Control Module, Electronic Automatic Temperature Control (EATC) Module, Clock |
| 3 | 25 | Cigar Lighter |
| 4 | 5 | Park Lamp Relay, Headlamp Relay, Autolamp Module, Remote Anti-theft Personality (RAP) Module, Power Mirror Switch, Memory Seat and Mirror Module, Driver Power Seat Control Switch, Memory Seat Switch |
| 5 | 15 | Digital Transmission Range (DTR) Sensor, Daytime Running Lamps (DRL) Module, Speed Control Servo/Amplifier Assembly, EATC Clutch Relay |
| 6 | 5 | Shift Lock Actuator, Generic Electronic Module (GEM), 4 Wheel Air Suspension 4WAS Module, Compass Sensor, Steering Wheel Rotation Sensor, Heated Grid Relay, Overhead Trip Computer (OTC) Module |
| 7 | 5 | Auxiliary A/C Relay, Console Blower Motor |
| 8 | 5 | Radio, Main Light Switch, Remote Anti-theft Personality (RAP) Module, Generic Electronic Module (GEM), Ignition Switch, Clock |
| 9 | — | Not used |
| 10 | — | Not used |
| 11 | 30 | Washer Pump Relay, Wiper Run/Park Relay |
| 12 | 5 | Data Link Connector (DLC) |
| 13 | 15 | Brake On/Off (BOO) Switch, Brake Pressure Switch |
| 14 | 15 | Battery Saver Relay, Interior Lamp Relay |
| 15 | 5 | Generic Electronic Module (GEM), SecuriLock |
| 16 | 20 | Instrument Cluster (W/O DRL), Daytime Running Lamps (DRL) Module, Hi-Beam Headlamps (Power supplied through Multi-Function Switch) |
| 17 | 10 | Heated Backlite Switch, Left Power/Heated Signal Mirror, Right Power/Heated Signal Mirror |
| 18 | 5 | Main Light Switch, Generic Electronic Module (GEM), Instrument Illumination, (Power supplied through Main Light Switch), Park Lamp Relay, Trailer Electronic Brake Control, Trailer Tow Running Lamp Relay, Left Side Marker Lamps, Right Side Marker Lamps, Left Front Park/Turn Lamp, Right Front Park/Turn Lamp, Left Stop/Park/Tum Lamp, Right Stop/Park/Tum Lamp, Left License Lamp, Right License Lamp |
| 19 | 10 | Instrument Cluster, Air Bag Diagnostic Monitor |
| 20 | 5 | 4 Wheel Air Suspension 4WAS Generic Electronic Module (GEM), Memory Seat and Mirror Module |
| 21 | 15 | Digital Transmission Range (DTR) Sensor, Junction Box Fuse/Relay Panel (Fuse 20) |
| 22 | 10 | Air Bag Diagnostic Monitor, Ignition Switch |
| 23 | 10 | Trailer Tow Battery Charge Relay, 4X4 Center Axle Disconnect Solenoid, 4X2 Center Axle Disconnect Solenoid, Electronic Day/Night Mirror, Rear Integrated Control Panel, Auxiliary A/C Mode Actuator, Auxiliary A/C Control Module, Auxiliary A/C Blend Actuator Flasher Relay |
| 24 | 10 | Electronic Automatic Temperature Control (EATC) Module, Console Blower Relay, Auxiliary A/C Relay |
| 25 | 5 | 4 Wheel Anti-Lock Brake System (4WABS) Module 4WABS Relay |
| 26 | 10 | Daytime Running Lamps (DRL) Module, Right Headlamp (Power supplied through Multi-Function Switch) |
| 27 | 5 | Main Light Switch, Fog Lamp Relay |
| 28 | 10 | Left Headlamp |
| 29 | 5 | Autolamp Module, Instrument Cluster, Transmission Control Switch (TCS) |
| 30 | 30 | Radio Noise Capacitor, PCM Power Diode, Coil on Plugs, PCM Power Relay, SecuriLock |
| 31 | — | Not Used |
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Fusible Link Block (megafuses)
The primary battery fuses are located in the engine compartment near the battery.
| № | A | Circuit Protected |
|---|---|---|
| 1 | 175 | Power Network Box Megafuse |
| 2 | 175 | Alternator Megafuse |
| 3 | 20 | Alternator Field Minifuse |
Additional Fuse Box
The engine mini fuses are located on the driver’s side of the engine compartment.
| № | A | Circuit Protected |
|---|---|---|
| 1 | 5 | Powertrain Control Module (PCM) |
| 2 | 20 | Trailer Tow Stop/Turn Lamps |
| 3 | 10 | Audio Rear Integrated Control Panel (RICP), Compact Disc Changer, Radio |
| 4 | 10 | Running Board Lamps |
| 5 | 20 | Amplifier, Subwoofer Amplifier |
| 6 | — | Not Used |
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