2021 Mazda CX-3 AWDFACTORY OEM SERVICE PROCEDURE

Fuse Block Removal/Installation: Installation

  1. While pressing the stopper using a tape-wrapped flathead screwdriver in the direction of the arrow (1) shown in the figure, pull the wiring harness in the direction of the arrow (2) shown in the figure to detach the fuse terminal from the stopper.
    G11472448Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • If terminals are installed incorrectly, it could damage electrical accessories and burn wiring harnesses. When relocating terminals after replacing the fuse block, line up the fuse blocks of old and new parts and always verify each of the wiring harnesses in the wiring diagram so that the installation positions are correct.
    • A terminal disconnection could cause electronic components and the system to not operate normally due to poor contact. After terminal relocation, lightly pull the wiring harnesses to verify that they cannot be pulled out.
  2. Relocate all fuse terminals to the new fuse block.
    G11472449Courtesy of MAZDA MOTORS CORP.
  3. Install the bands.
    G11472450Courtesy of MAZDA MOTORS CORP.
  4. Install the fuse block clip to the body.
  5. Install the nut.
    Fig 1: Fuse Block Nut With Torque Specification
    G11472451Courtesy of MAZDA MOTORS CORP.
  6. Install all the fuses.
  7. Install the front side trim (LH). (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
  8. Install the front scuff plate (LH). (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
  9. Perform the "Verify Fuse Block Replacement". (See VERIFY FUSE BLOCK REPLACEMENT .)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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