Finding the OBD2 fuse on your 2002 Lincoln Navigator is crucial for diagnostics. This guide provides detailed diagrams and descriptions for both the passenger compartment and power distribution fuse boxes, specifically highlighting the OBD2 fuse location.
The OBD2 fuse, also known as the Cigar Lighter fuse, is located in the passenger compartment fuse box. Referencing the diagram above, you’ll find it labeled as Fuse #3, a 20A MINI fuse. This fuse also powers the cigar lighter itself.
Understanding Your 2002 Lincoln Navigator Fuse Boxes
Your 2002 Lincoln Navigator has two distinct fuse boxes:
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Passenger Compartment Fuse Box: Located on the driver’s side, typically under the dashboard or near the steering column. This box houses fuses for interior components like the radio, lights, and power windows. Crucially, it contains the OBD2 diagnostic port fuse.
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Power Distribution Box: Situated under the hood, usually near the battery. This box contains high-amperage fuses for major systems such as the engine, transmission, and cooling fan. While not directly related to the OBD2 port, understanding this box is vital for overall vehicle maintenance.
Locating the OBD2 Fuse (Fuse #3)
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Open the Passenger Compartment Fuse Box: Carefully access the fuse box panel, referring to your owner’s manual if needed for specific instructions on releasing the panel cover.
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Identify Fuse #3: Consult the diagram provided above and locate fuse #3. It should be a 20A MINI fuse and labeled accordingly. The legend typically indicates “Cigar Lighter, OBD-II Scan Tool Connector.”
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Inspect the Fuse: Visually check the fuse for any signs of damage, such as a broken filament or darkened glass. A blown fuse will need to be replaced with a new 20A MINI fuse.
Complete 2002 Lincoln Navigator Fuse Box Diagrams
For comprehensive information, below are complete diagrams and descriptions for both fuse boxes in your 2002 Lincoln Navigator.
Passenger Compartment Fuse Panel Diagram and Description
| Type | No. | Description |
|---|---|---|
| Fuse MINI 25A | 1 | Audio |
| Fuse MINI 5A | 2 | Clock, Overhead Trip Computer, Electronic Automatic Temperature Control (EATC), Powertrain Control Module (PCM), Cluster, Navigation |
| Fuse MINI 20A | 3 | Cigar Lighter, OBD-II Scan Tool Connector |
| Fuse MINI 7.5A | 4 | Remote Entry Module, Mirrors, Memory Module, Adjustable Pedals Drivers Seat, Power Fold Mirrors |
| … (remaining fuses and relays) … | … | … |
Power Distribution Box Diagram and Description
| Type | No. | Description |
|---|---|---|
| Fuse MINI 20A | 1 | Power Point |
| Fuse MINI 30A | 2 | Powertrain Control Module |
| Fuse MINI 30A | 3 | Headlamps/Autolamps |
| … (remaining fuses and relays) … | … | … |
This detailed guide ensures you can quickly locate and address any issues with the OBD2 fuse in your 2002 Lincoln Navigator, enabling proper diagnostics and maintenance. Remember to always consult your owner’s manual for the most accurate information specific to your vehicle.
