Fuse Box - Interior

This procedure describes the removal and installation of the interior fuse box assembly in a 1992 Dodge Viper, including disconnection of electrical connections and mounting hardware.

Warnings

Tools required

Parts

• Interior fuse box assembly × 1 — Use OEM specification or verified aftermarket equivalent

Preparation

1. Park vehicle on level surface and engage parking brake.
2. Turn ignition to OFF position and remove key.
3. Open driver's door and locate hood release.
4. Open hood and support with prop rod.
5. Disconnect negative battery cable using 10mm wrench and secure away from battery post.
6. Wait at least 2 minutes for airbag system capacitors to discharge.
7. Gather all tools and prepare clean workspace for small fasteners and connectors.

Procedure

1. 1

   Access the interior fuse box location
   The interior fuse box in the 1992 Viper is located on the driver's side, below and to the left of the steering column. Position yourself in the driver's seat or outside the open door for clear access to the lower dash area. Use the flashlight to identify the fuse box cover panel.
2. 2

   Remove fuse box cover
   Locate the fuse box cover panel. Remove the cover by releasing any retaining clips or fasteners. Early Vipers typically use push-clip retention or small screws to secure the cover. If screws are present, remove them completely and store in a container. Pull the cover away gently to expose the fuses and fuse box assembly.
3. 3

   Document fuse configuration
   Before removing any fuses, take a photograph or make a written diagram showing the position, amperage rating, and circuit designation for each fuse. This documentation is critical for proper reinstallation. The fuse box cover typically includes a diagram, but verify actual installed fuses match the diagram as previous owners may have made changes.
4. 4

   Remove all fuses from the box
   Using your fingers or a fuse puller tool, carefully extract each fuse from its socket. Store removed fuses in a labeled container matching your documentation from Step 3. Inspect each fuse for signs of damage or corrosion as you remove it. Set fuses aside in organized fashion for reinstallation.
5. 5

   Remove lower dash trim panel if obstructing access
   Inspect the fuse box mounting area to determine if the lower dash trim panel or knee bolster must be removed for access to mounting fasteners. If clearance is sufficient to access mounting hardware without trim removal, proceed to Step 6. If trim removal is required, locate and remove trim panel fasteners (typically screws or push clips at panel perimeter), then carefully pull panel away from dash structure and set aside.
6. 6

   Disconnect wiring harness connectors
   Identify all wiring harness connectors attached to the rear of the fuse box. The interior fuse box is fed by one or more main multi-pin wiring harness connectors (exact count to be verified against the OEM wiring diagram for this vehicle). Identify all connectors attached to the rear of the fuse box. For each connector, locate the locking tab or release mechanism (typically a squeeze-type tab or sliding lock). Depress or release the lock, then pull the connector straight back by gripping the connector body, not the wires. Disconnect all harness connectors completely from the fuse box.
7. 7

   Disconnect ground strap if present
   Check for a ground strap bolted to the fuse box mounting bracket or directly to the fuse box housing. If present, use the appropriately sized socket (commonly 10mm on Chrysler products, but verify) to remove the ground strap bolt. Clean the contact surface with a wire brush if corrosion is present. Set the ground strap and bolt aside for reinstallation.
8. 8

   Remove fuse box mounting fasteners
   Locate the mounting fasteners securing the fuse box to the dash structure or mounting bracket. The interior fuse box is secured by mounting fasteners (count and type to be verified against the OEM service manual for this vehicle). Identify and remove all mounting fasteners. Use the appropriate socket or screwdriver to remove all mounting fasteners completely. Support the fuse box with one hand while removing the final fastener to prevent it from dropping.
9. 9

   Remove fuse box assembly from vehicle
   With all fasteners and electrical connections removed, carefully maneuver the fuse box assembly out of its mounting location. Work slowly and check that no wiring or connectors are still attached. The fuse box may need to be tilted or rotated slightly to clear surrounding dash structure. Once free, remove the assembly from the vehicle and place on clean workspace.
10. 10

    Inspect mounting area and connectors
    With the old fuse box removed, inspect the mounting bracket and dash structure for damage, corrosion, or loose mounting points. Check all wiring harness connectors for damaged pins, corrosion, or melted terminals. Clean connector terminals with electrical contact cleaner if needed. Verify mounting fastener holes are clean and threads are intact. If the same fuse box is being reinstalled, inspect it for cracks, melted terminals, or other damage requiring replacement.
11. 11

    Position new or serviced fuse box
    Position the new or serviced fuse box assembly into the mounting location in the dash. Align the mounting holes with the bracket or dash structure. Ensure no wiring is pinched behind the fuse box. The box should sit flush against its mounting surface with all mounting holes aligned.
12. 12

    Install fuse box mounting fasteners
    Insert all mounting fasteners through the fuse box and into the mounting bracket or dash structure. Start all fasteners by hand before tightening any of them. Once all fasteners are started, tighten them in a cross-pattern to the specified torque using a torque wrench. This ensures even clamping force and prevents distortion of the fuse box housing.
13. 13

    Reconnect ground strap
    If a ground strap was removed in Step 7, reinstall it now. Ensure the contact surfaces on both the strap terminal and mounting point are clean and free of paint or corrosion. Position the ground strap and install the bolt. Tighten the ground bolt to the specified torque using a torque wrench.
14. 14

    Reconnect wiring harness connectors
    Reconnect each wiring harness connector to the rear of the fuse box. Align each connector carefully with its socket and push firmly until the locking tab clicks into place. Tug gently on each connector to verify it is fully seated and locked. Ensure no connector pins are bent or misaligned during installation.
15. 15

    Reinstall fuses in correct positions
    Using your documentation from Step 3, reinstall each fuse into its correct socket position. Verify each fuse matches the proper amperage rating for its circuit. Push each fuse firmly into its socket until fully seated. Double-check that all circuits have the correct fuse installed before proceeding.
16. 16

    Reinstall fuse box cover and trim panels
    Position the fuse box cover over the fuse panel. If the cover uses screws, install them and tighten to the specified torque. If the cover uses push clips, align the clips and press firmly until all clips engage. If lower dash trim panels were removed in Step 5, reinstall them now by reversing the removal process, ensuring all clips or screws are properly secured.
17. 17

    Reconnect battery and test electrical systems
    Return to the engine compartment and reconnect the negative battery cable. Tighten the battery terminal bolt to specification using a torque wrench. Turn the ignition to the ON position (do not start engine). Verify that instrument cluster lights illuminate and that all electrical accessories (headlights, radio, power windows, etc.) function properly. Check the instrument cluster gauges and warning lamps (oil pressure, temperature, charge) to confirm they behave normally as before the work began.

Reassembly

1. Reassembly is covered in the removal steps above, performed in reverse order.
2. Ensure all ground connections are clean and tight to prevent electrical issues.
3. Verify all fuses are installed in the correct positions with proper amperage ratings.
4. Test all electrical circuits after battery reconnection to confirm proper fuse box operation.

Verification

• Turn ignition to ON position and verify instrument cluster illuminates normally with no unexpected warning lights.
• Test each major electrical circuit: headlights, turn signals, brake lights, horn, windshield wipers, radio, power windows, and climate control.
• Start the engine and verify all systems continue to function properly with engine running.
• Inspect the fuse box area for any signs of heat, smoke, or burning smell which would indicate improper connections or overloaded circuits.
• Verify the fuse box cover is securely attached and all trim panels are properly reinstalled with no loose or missing fasteners.

Related trouble codes on this vehicle

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