Relay - Generic

This procedure covers the replacement of a relay in the 2017 Maserati Levante 3.0L V6 Twin Turbo, including location identification, removal, and installation of a new relay in the fuse/relay boxes.

Warnings

Tools required

Parts

• Relay (specific to circuit being repaired) × 1 — Use OEM specification - verify amperage and part number from fuse box diagram

Preparation

1. Park vehicle on level ground and engage parking brake
2. Turn ignition OFF and remove key fob from vehicle interior
3. Allow engine to cool if recently operated
4. Identify which relay needs replacement using diagnostic codes or circuit testing
5. Locate the fuse box diagram (typically on fuse box cover or owner's manual) to identify exact relay position
6. Open hood and locate battery in engine compartment (right rear area)

Procedure

1. 1

   Disconnect battery negative terminal
   Using a 10mm wrench or battery terminal wrench, loosen the negative battery terminal bolt. Remove the negative cable and position it away from the battery terminal to prevent accidental contact during relay replacement.
   Torque spec

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

   Access the appropriate fuse/relay box
   Based on the relay location identified in preparation, access the correct fuse box. For engine compartment box: release the cover clips and lift the cover. For cabin fuse box: remove the lower dash trim panel on driver's side by pulling firmly on the clips. For battery area relays: locate the relay holder near the battery tray.
   Torque spec

   Cover Screws11 Nm (8 lb-ft)
3. 3

   Verify relay identification
   Cross-reference the relay position with the diagram on the fuse box cover or owner's manual. Note the relay number, amperage rating, and circuit description. Take a photo of the relay configuration for reference during reinstallation if multiple relays are present.
   ⚠Installing an incorrect relay or placing it in the wrong socket can damage electrical components or create a fire hazard.
4. 4

   Remove the faulty relay
   Using a relay puller tool or needle-nose pliers, grasp the relay body firmly and pull straight up with steady pressure. Avoid rocking side-to-side as this can damage the socket terminals. If the relay is secured with a bracket, remove the bracket fasteners first.
   Torque spec

   Bracket Bolts22 Nm (16 lb-ft)
5. 5

   Inspect relay socket and terminals
   Examine the relay socket for signs of corrosion, burning, or damaged terminals. Check for melted plastic or discoloration which indicates overheating. If damage is present, the socket may require replacement or professional repair. Clean terminals gently with electrical contact cleaner if minor corrosion is present.
   ⚠A damaged or overheated relay socket indicates an underlying electrical problem that should be diagnosed before installing a new relay.
6. 6

   Compare old and new relay specifications
   Verify the new relay matches the old relay specifications exactly: check the amperage rating, voltage rating, and terminal configuration. Confirm the relay pin layout matches (standard automotive relays use ISO mini or micro configurations). Ensure any additional features like diodes or resistors match if present.
   ⚠️Using a relay with incorrect amperage or voltage ratings can cause circuit damage, component failure, or electrical fire.
7. 7

   Install new relay
   Align the new relay with the socket, ensuring the terminal pins match the socket configuration. Press the relay firmly into the socket until it seats completely and is level with surrounding relays. The relay should click into place and sit flush. If a bracket was removed, reinstall and torque the bracket bolts to specification.
   Torque spec

   Bracket Bolts22 Nm (16 lb-ft)
8. 8

   Reinstall fuse box cover
   Replace the fuse/relay box cover, ensuring all clips engage properly. If cover screws were removed, install them and torque to specification. For cabin fuse box, reinstall the lower dash trim panel by aligning clips and pressing firmly until secured.
   Torque spec

   Cover Screws11 Nm (8 lb-ft)
9. 9

   Reconnect battery negative terminal
   Place the negative battery cable onto the battery terminal post. Torque the battery terminal bolt to specification using a torque wrench. Ensure the connection is secure but do not overtighten as this can damage the terminal or cable.
   Torque spec

   Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Ensure all fuse box covers are properly secured with no gaps
2. Verify all dashboard trim panels are fully seated and clips engaged
3. Confirm battery terminal connection is tight and corrosion-free

Verification

• Turn ignition to ON position (engine off) and verify no warning lights appear that weren't present before
• If the relay controls an accessory (windows, lights, etc.), test the accessory function
• If the relay controls engine management or fuel system, start the engine and verify normal operation
• Check for proper operation of the circuit the relay controls under normal operating conditions
• Listen for the relay clicking when the circuit is activated (if audible)
• Use a multimeter to verify proper voltage at relay terminals if operation is questionable
• Verify no blown fuses resulted from relay replacement
• Road test vehicle if relay controls drivetrain or safety systems to confirm proper operation

More procedures for this vehicle