Fuse Box - Interior

Complete removal and replacement of the interior fuse box assembly on a 2017 Maserati Levante 3.0L V6 Twin Turbo, including disconnection of electrical connections and proper grounding procedures.

Warnings

Tools required

Parts

• Interior fuse box assembly × 1 — Use OEM specification
• Fuse box cover × 1 — If damaged during removal
• Electrical connector seals × 1 — As needed if damaged
• Wire loom tape × 1 — OEM quality

Preparation

1. Park vehicle on level surface and engage parking brake
2. Ensure all electrical accessories are turned off including headlights, climate control, and infotainment system
3. Install battery memory saver if available to preserve vehicle settings
4. Open hood and disconnect negative battery terminal first, then positive terminal
5. Wait minimum 10 minutes for airbag system capacitors to discharge
6. Photograph or document all fuse positions in the fuse box for reference
7. Ensure you have the vehicle security code for radio reactivation if needed

Procedure

1. 1

   Disconnect battery terminals
   Using a 10mm socket, loosen and remove the negative battery terminal bolt first, then the positive terminal bolt. Move cables away from battery posts and secure to prevent accidental contact. Wait 10 minutes before proceeding.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)
2. 2

   Remove lower dashboard trim panels
   Locate the interior fuse box behind the driver-side lower dashboard panel. Using trim removal tools, carefully pry out the lower trim panel starting from the bottom edge. Release the panel clips by pulling straight out, working around the perimeter. Disconnect any courtesy light connectors attached to the panel and set aside.
   ⚠Trim clips are fragile. Apply even pressure and avoid twisting motions to prevent breakage.
3. 3

   Access fuse box mounting area
   With the lower panel removed, locate the interior fuse box mounted to the left side of the steering column area. Remove any additional trim pieces or knee bolster panels that obstruct access to the fuse box mounting bolts. These are typically secured with T25 Torx screws.
4. 4

   Remove fuse box cover and document fuses
   Release the fuse box cover clips and remove the cover. Take a clear photograph of all fuse positions. Using the fuse diagram on the cover or owner's manual, verify all fuse locations. Remove any critical fuses (such as airbag system fuses) and set aside separately with labels.
5. 5

   Disconnect primary electrical connectors
   Locate all large multi-pin connectors on the back of the fuse box. Depress the locking tabs on each connector (typically red or gray locking mechanisms) and carefully pull connectors straight out. There are usually 3-5 large harness connectors. Mark each connector position with tape or labels for reinstallation.
   ⚠Some connectors have secondary locking tabs. Ensure both primary and secondary locks are released before pulling.
6. 6

   Disconnect ground strap
   Locate the ground strap bolted to the fuse box housing or nearby mounting point. Using an 8mm socket, remove the ground strap bolt. Inspect the ground contact surface on both the strap and mounting point. Clean any corrosion or oxidation using a wire brush until bare metal is visible on contact surfaces.
   ℹ️Clean ground connections are critical for proper electrical system operation. Dirty or corroded grounds will cause multiple electrical faults.
   Torque spec

   Ground Strap Bolt14 Nm (10 lb-ft)
7. 7

   Remove fuse box mounting bolts
   Locate the fuse box mounting bolts securing the assembly to the dashboard structure. These are typically three bolts accessible from the front and side of the unit. Using a 10mm socket, remove all mounting bolts while supporting the fuse box with your other hand.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
8. 8

   Disconnect remaining connectors and remove fuse box
   Carefully pull the fuse box forward from its mounting position. As you do, identify any remaining smaller connectors or terminal connections on the rear of the unit. Release any connector screws using a T20 Torx driver. Once all connections are free, remove the fuse box assembly from the vehicle.
   ⚠The fuse box may be heavier than expected and have wiring harnesses routed underneath. Work slowly to avoid damage.
   Torque spec

   Connector Screws4 Nm (3 lb-ft)
9. 9

   Prepare new fuse box assembly
   Compare the new fuse box to the old unit to verify correct part. Transfer any fuses from the old box to the new box according to your documentation. Ensure all fuse ratings match original specifications. If reusing the old box, inspect all terminals for damage or corrosion and clean as necessary with electrical contact cleaner.
10. 10

    Install fuse box and connect terminals
    Position the fuse box into the mounting location, routing any wiring harnesses carefully. Connect any small terminal connections first, securing connector screws to specification. Ensure terminals are fully seated before tightening.
    Torque spec

    Connector Screws4 Nm (3 lb-ft)

    Battery Terminal Bolts6 Nm (4 lb-ft)
11. 11

    Install mounting bolts
    Thread in all fuse box mounting bolts by hand first to ensure proper thread engagement. Once all bolts are started, tighten to specification in a cross-pattern to ensure even clamping force. Verify the fuse box sits flush against its mounting surface.
    Torque spec

    Module Mounting Bolts8 Nm (6 lb-ft)
12. 12

    Reconnect ground strap
    Position the ground strap to its mounting point, ensuring both contact surfaces are clean and free of paint or corrosion. Install the ground strap bolt and tighten to specification. Verify solid metal-to-metal contact.
    ℹ️This is a critical electrical ground. Verify tight connection and clean surfaces before proceeding.
    Torque spec

    Ground Strap Bolt14 Nm (10 lb-ft)
13. 13

    Reconnect main electrical connectors
    Referring to your labels or photographs, reconnect all large multi-pin connectors to the fuse box. Push each connector firmly until you hear or feel the locking tab click into place. Tug gently on each connector to verify it is locked. Ensure secondary locking tabs are engaged where applicable.
14. 14

    Install fuse box cover and reinstall trim panels
    Install the fuse box cover, ensuring all clips engage properly. Remove cover screws if applicable and tighten to specification. Reinstall all dashboard trim panels in reverse order of removal, ensuring all clips are properly seated and any courtesy lights are reconnected.
    Torque spec

    Cover Screws11 Nm (8 lb-ft)
15. 15

    Reconnect battery and initialize systems
    Reconnect battery terminals, positive first then negative. Tighten terminal bolts to specification. Turn ignition to ON position (do not start) and verify all warning lights illuminate then extinguish normally. Check for any fault codes using a scan tool if available.
    ℹ️Some systems may require initialization procedures including window auto-up/down, sunroof, and steering angle sensor calibration.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Ensure all electrical connectors are fully seated and locked with audible clicks
2. Verify all ground connections are tight and contact surfaces are clean
3. Check that all trim panels are flush and clips are fully engaged
4. Confirm no tools or parts are left in the dashboard area before closing panels

Verification

• Turn ignition to ON and verify instrument cluster lights up normally with no unusual warning messages
• Test all fused circuits systematically: interior lights, power windows, infotainment, climate control, and exterior lights
• Verify power door locks, mirrors, and seat controls function properly
• Start the engine and confirm no electrical warning lights remain illuminated
• Test all dashboard switches and verify proper operation
• Check for any loose rattles from trim panels
• If available, scan for diagnostic trouble codes to verify no electrical faults are present
• Perform window and sunroof initialization procedures if applicable
• Verify radio, navigation, and saved vehicle settings are restored or reset as needed

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