Ensuring your 2006 Lincoln Navigator runs smoothly requires understanding its electrical system, and a key component of that is the fuse box. Fuses are safety devices that protect your vehicle’s electrical circuits from overloads. When a fuse blows, it interrupts the circuit, preventing damage to more expensive components. One crucial fuse to be aware of, especially for diagnostics, is related to the OBD2 port. This guide will provide you with a detailed breakdown of the 2006 Lincoln Navigator fuse box diagram, with a special focus on the OBD2 fuse location and its function.
Understanding Your 2006 Lincoln Navigator’s Fuse Box
Your 2006 Lincoln Navigator utilizes a centralized fuse box to manage and protect its various electrical systems. Knowing the location and function of each fuse is essential for troubleshooting electrical issues. This guide will help you identify the fuse responsible for the OBD2 port and other vital systems in your vehicle.
The On-Board Diagnostics II (OBD2) port is a critical interface in your Lincoln Navigator. It allows mechanics and vehicle owners to connect diagnostic tools to read trouble codes, monitor vehicle performance, and ensure everything is functioning correctly. If you’re experiencing issues connecting your OBD2 scanner, or if your check engine light is on, checking the OBD2 fuse should be one of your first steps.
2006 Lincoln Navigator Fuse Box Diagram and Fuse List
Below is a detailed breakdown of the fuses in your 2006 Lincoln Navigator’s fuse box. This diagram is crucial for identifying the correct fuse for each system. Locate your fuse box, typically found under the dashboard on the driver’s side or within the engine compartment, and use this guide to understand each fuse’s purpose.
| Fuse Number | Fuse Type | Amperage | Description |
|---|---|---|---|
| 1 | MINI | 7.5A | Run/Accessory – Instrument cluster, Front wiper motor, Rear wiper motor |
| 2 | MINI | 20A | Brake On/Off (stoplamp) switch, Turn signal/Hazard flasher, Stoplamps, Center High-Mounted Stoplamp (CHMSL), Turn signal lamps |
| 3 | MINI | 7.5A | Power mirror switch, Memory module (logic power), Driver seat switch (memory) |
| 4 | MINI | 15A | Rear seat audio controls, Navigation module, DVD player |
| 5 | MINI | 7.5A | Brake On/Off (stoplamp) switch, Powertrain Control Module (PCM) (keep alive power), EATC control head, Body Security Module (BSM) (keep alive power), Speed control deactivation switch, SecuriLock LED, 3rd row seat relay coils, Power liftgate module, Clock, Brake Shift Interlock (BSI) solenoid |
| 6 | MINI | 15A | Headlamp switch (parklamps and switch backlighting feed), Parklamps, License lamps, Foglamp relay coil, Trailer tow electric brake controller (illumination), BSM (autolamp parklamps), Floor console gear selector lighting, Foglamp indicator |
| 7 | MINI | 5A | Radio (Start signal) |
| 8 | MINI | 10A | Rear window defroster switch, Heated outside mirrors, Rear window defroster indicator (climate control head) |
| 9 | MINI | 15A | Transmission control module |
| 10 | MINI | 20A | Trailer tow back-up lamps relay, Trailer tow 7-wire connector (back-up lamps), Trailer tow parklamps relay, Trailer tow 7and 4-wire connectors (parklamps) |
| 11 | MINI | 10A | A/C compressor clutch relay, A/C compressor clutch solenoid, 4×4 Integrated Wheel Ends (IWE) solenoid |
| 12 | MINI | 15A | Fuel pump relay, Fuel pump shut-off switch, Fuel pump driver module, Fuel pump motor |
| 13 | MINI | 10A | Rear window defroster relay coil, A/C refrigerant containment switch, A/C de-icing switch, A/C low pressure switch, DATC control head, DATC solenoids, DATC blower controller, Trailer tow battery charge relay coil |
| 14 | MINI | 10A | Daytime Running Lamps (DRL) ignition relay coil, Trailer tow back-up lamps relay coil, Electrochromatic mirror, Back-up lamps relay, Back-up lamps |
| 15 | MINI | 5A | AdvanceTrac with RSC switch, Instrument cluster (Run/Start feed) |
| 16 | MINI | 10A | ABS/AdvanceTrac® with RSC module (Run/Start feed) |
| 17 | MINI | 15A | Foglamps |
| 18 | MINI | 10A | Auxiliary A/C temperature blend door actuator, Auxiliary A/C front auxiliary control, Park brake release relay coils, Turn signal flasher, Electrochromatic mirror, Auxiliary mode motor |
| 19 | MINI | 10A | Restraints Control Module (RCM) |
| 20 | MINI | 30A | BSM (door locks, liftgate glass release relay), Liftgate glass release motor, Left front window motor, Door/Liftgate lock motors |
| 21 | MINI | 15A | Instrument cluster (B+), Interior (courtesy) lamps, Park brake release relays, Park brake release motor, Puddle lamps (outside mirrors) |
| 22 | MINI | 10A | Moonroof switch illumination, Flip window switch, Flip window relays, Flip window motors, Electronic hidden antenna amplifier (navigation radio), Radio (delayed accessory feed), Left front window motor, Navigation module |
| 23 | MINI | 10A | RH low beam |
| 24 | MINI | 15A | Interior demand lamps (front map/dome lamps, glove compartment lamp, cargo lamp, roof rail lamps, vanity mirror lamps), Battery saver relay coil, Battery saver relay power, Heated Positive Crankcase Ventilation (PCV) valve, Heated PCV valve relay |
| 25 | MINI | 10A | LH low beam |
| 26 | MINI | 20A | Horn relay, Horns |
| 27 | MINI | 5A | Brake Shift Interlock solenoid, Reverse park aid system module, Air suspensión module (Run/Start), Compass module |
| 28 | MINI | 5A | PCM relay coil, SecuriLock transceiver, Heated PCV valve relay coil |
| 29 | MINI | 30A | Trailer tow electric brake controller, Trailer tow 7-wire connector (electric brake) |
| 30 | MINI | 25A | PCM (4×4 transfer case clutch), Air suspensión module (air spring solenoids and height sensors) |
| 31 | MINI | 20A | Radio (B+), Subwoofer, Navigation radio audio amplifier |
| 32 | MINI | 15A | Catalyst Monitor Sensors (CMS), 6-speed transmission (ignition sense), HEGO sensors, Canister vent solenoid, Vapor Management valve (VMV) solenoid, A/C compressor clutch relay coil, CMCV, VCT actuators |
| 34 | MINI | 15A | PCM, Mass Air Flow (MAF) sensor, Fuel injectors |
| 35 | MINI | 20A | High beam headlamps, Instrument cluster high beam indicator |
| 36 | MINI | 10A | Trailer tow right turn/stop lamps |
| 37 | MINI | 20A | Cargo area power point |
| 38 | MINI | 25A | Rear wiper motor, Washer pump (rear window wash) |
| 39 | MINI | 20A | Console power points |
| 40 | MINI | 20A | DRL relays, DRL foglamps, DRL headlamp relay coil, Headlamp switch (headlamps), Multifunction switch (flash-to-pass), BSM (autolamp headlamps relay), High beam relay coil, Fuse 25 (LH low beam), Fuse 23 (RH low beam) |
| 41 | MINI | 20A | Cigarette lighter, OBD II diagnostic connector |
| 42 | MINI | 10A | Trailer tow left turn/stop lamps |
| 101 | FMX/JCase | 30A | Starter motor relay, Starter motor solenoid |
| 102 | FMX/JCase | 30A | Ignition switch power |
| 103 | FMX/JCase | 30A | ABS/AdvanceTrac with RSC module (pump motor) |
| 104 | FMX/JCase | 30A | LH 3rd row seat relay, LH 3rd row seat switch, LH 3rd row seat motor |
| 105 | FMX/JCase | 30A | Power liftgate module, Power liftgate motors, Power running boards control |
| 106 | FMX/JCase | 30A | Trailer tow battery charge relay, Trailer tow 7-wire connector (battery charge) |
| 107 | FMX/JCase | 30A | Auxiliary A/C blower relay, Auxiliary A/C blower motor |
| 108 | FMX/JCase | 30A | Passenger seat motor switch, Passenger seat lumbar switch and motor |
| 109 | FMX/JCase | 30A | Driver seat lumbar switch and motor, Memory module, Power memory mirrors, Adjustable pedals switch and motor |
| 110 | FMX/JCase | 30A | Power running boards |
| 111 | FMX/JCase | 50A | Air suspensión compressor relay, Air suspensión compressor |
| 112 | FMX/JCase | 30A | ABS/AdvanceTrac with RSC module (valves) |
| 113 | FMX/JCase | 30A | Front wiper motor, Washer pump (windshield wash) |
| 114 | FMX/JCase | 40A | Rear window defroster relay, Rear window defroster grid, Heated mirrors (Fuse 8) |
| 115 | FMX/JCase | 30A | Transfer case shift motor, 4×4 relays |
| 116 | FMX/JCase | 40A | Front blower motor relay, Front blower motor |
| 117 | FMX/JCase | 30A | RH 3rd row seat relay, RH 3rd row seat switch, RH 3rd row seat motor |
| 118 | FMX/JCase | 30A | Driver and passenger climate control seat module |
| 401 | Circuit breaker MAXI | 40A | Power windows (circuit breaker), Main window switch, Window motors, Window switches, Moonroof module |
| R01 | Relay | – | Starter motor solenoid |
| R02 | Relay | – | Fuse 22, CB 401, Power windows, Moonroof, Flip windows, Radio, Navigation module, Navigation antenna amplifier |
| R03 | Relay | – | Fuse 35, Hi-beam headlamps, Hi-beam indicator |
| R04 | Relay | – | Fuse 8 (heated mirrors), Rear window defroster, Heated outside mirrors, Rear window defroster indicator (climate control head) |
| R05 | Relay | – | Trailer tow 7-wire connector (battery charge) |
| R06 | Relay | – | Front blower motor |
| R201 | Relay | – | Trailer tow 7 – and 4-wire connectors (park lamps) |
| R202 | Relay | – | Front foglamps |
| R203 | Relay | – | Fuse 32, Fuse 34, PCM solenoids and sensors |
| R301 | Relay | – | Trailer tow 7-wire connector (back-up lamps) |
| R302 | Relay | – | Heated PCV valve |
| R303 | Relay | – | Fuel pump shut-off switch, PCM (fuel pump monitor), Fuel pump, Fuel pump driver module |
| R304 | Relay | – | Roof rail lamps, Vanity mirror lamps, Map/Dome lamp, Glove box lamp, Cargo area lamp, Outside mirror puddle lamps, Instrument cluster (interior lamps) |
| R305 | Relay | – | Dual note horn |
Note: Fuse box diagrams can slightly vary depending on the specific trim and options of your 2006 Lincoln Navigator. Always consult your vehicle’s owner’s manual for the most accurate fuse diagram for your specific vehicle.
Locating the OBD2 Fuse in Your 2006 Lincoln Navigator
As highlighted in the table, Fuse #41 (20A) is responsible for the OBD II diagnostic connector in your 2006 Lincoln Navigator. This fuse is located within the main fuse box. If you are experiencing issues with your OBD2 port, such as a scanner not powering on or failing to connect, checking this 20A fuse is crucial.
Steps to Check and Replace the OBD2 Fuse:
- Locate the Fuse Box: Refer to your owner’s manual to find the exact location of the fuse box in your 2006 Lincoln Navigator. It’s often under the driver’s side dashboard or in the engine bay.
- Identify Fuse #41: Once you’ve located the fuse box, use the diagram provided (or the one in your owner’s manual) to identify Fuse #41.
- Inspect the Fuse: Visually inspect the fuse. A blown fuse will typically have a broken wire inside the clear plastic casing.
- Test with a Multimeter (Optional): For a more accurate check, use a multimeter to test for continuity across the fuse terminals.
- Replace if Blown: If the fuse is blown, replace it with a new 20A MINI fuse. Important: Always use the correct amperage fuse. Using a fuse with a higher amperage can damage your vehicle’s electrical system.
- Test the OBD2 Port: After replacing the fuse, test your OBD2 port with a diagnostic scanner to see if it’s now working correctly.
Importance of Maintaining Your 2006 Lincoln Navigator Fuses
Regularly checking your fuses is a simple yet effective way to maintain your 2006 Lincoln Navigator’s electrical health. If you encounter any electrical issues, consulting your fuse box diagram and checking the relevant fuses can often be the quickest path to diagnosing and resolving the problem. Remember to always replace blown fuses with the correct type and amperage to ensure the continued safe and reliable operation of your vehicle.
By understanding your 2006 Lincoln Navigator fuse box diagram and specifically knowing the location of the OBD2 fuse, you are better equipped to handle basic electrical troubleshooting and maintain your vehicle effectively.
