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Relay And Fuse Block Removal/Installation: Removal

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  2. Remove the air cleaner assembly. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
  3. Remove the battery and the battery tray. (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
  4. While pressing the relay and fuse block upper cover hook in the direction of the arrow (1) shown in the figure, lift up the relay and fuse block upper cover in the direction of the arrow (2) to detach the relay and fuse block upper cover hook from the relay and fuse block middle cover tab.
    Fig 1: Lifting Up Relay And Fuse Block Upper Cover
    G10915242Courtesy of MAZDA MOTORS CORP.
  5. Remove the relay and fuse block upper cover.
    CAUTION:
    • If the relay and fuse block is removed with the relays and fuses installed, the area around the relay and fuse block may contact the relays or fuses and damage the them. Before removing the relay and fuse block, remove all the relays and fuses.
  6. Remove all the relays and fuses.
  7. Remove the emission wiring harness from the relay and fuse block hook.
    Fig 2: Identifying Relay And Fuse Block Hook
    G10915243Courtesy of MAZDA MOTORS CORP.
  8. Disconnect the emission wiring harness connectors.
    Fig 3: Identifying Emission Wiring Harness Connectors
    G10915244Courtesy of MAZDA MOTORS CORP.
  9. Remove the nuts.
    Fig 4: Identifying Relay And Fuse Block Nut
    G10915245Courtesy of MAZDA MOTORS CORP.
  10. Pull out the relay and fuse block from the stud bolts.
    Fig 5: Identifying Relay And Fuse Block Stud Bolt
    G10915246Courtesy of MAZDA MOTORS CORP.
  11. While pressing the clip tabs of front wiring harness protector in the direction of the arrows (1) shown in the figure, pull the clip of front wiring harness protector in the direction of the arrow (2) shown in the figure to detach the clip tabs of front wiring harness protector from the engine mount.
    Fig 6: Pulling Wiring Harness Protector Clip
    G10915247Courtesy of MAZDA MOTORS CORP.
  12. Pull out the front wiring harness protector clip from the engine mount.
  13. Pull out the front wiring harness protector cap in the direction of the arrow shown in the figure.
    Fig 7: Pulling Out Front Wiring Harness Protector Cap
    G10915248Courtesy of MAZDA MOTORS CORP.
  14. Pull out the front wiring harness protector from the stud bolt.
  15. While pressing the wiring harness clip tabs in the direction of the arrows (1) shown in the figure, push out the wiring harness clip in the direction of the arrow (2) shown in the figure to detach the wiring harness clip tabs from the relay and fuse block lower cover No. 1.
    Fig 8: Pressing Wiring Harness Clip Tabs
    G10915249Courtesy of MAZDA MOTORS CORP.
  16. Remove the wiring harness clips.
  17. While pressing the relay and fuse block middle cover tab in the direction of the arrow (1) shown in the figure using a tape-wrapped flathead screwdriver, pull down the relay and fuse block lower cover No. 1 in the direction of the arrow (2) to detach the relay and fuse block middle cover tab from the relay and fuse block lower cover No. 1.
    Fig 9: Pressing Relay And Fuse Block Middle Cover Tab
    G10915250Courtesy of MAZDA MOTORS CORP.
  18. Detach all of the relay and fuse block middle cover tabs and the relay and fuse block lower cover No. 1.
  19. Remove the relay and fuse block lower cover No. 1.
  20. While pressing the relay and fuse block middle cover tab in the direction of the arrow (1) shown in the figure using a tape-wrapped flathead screwdriver, pull down the relay and fuse block lower cover No. 2 in the direction of the arrow (2) to detach the relay and fuse block middle cover tab from the relay and fuse block lower cover No. 2.
    Fig 10: Pressing Relay And Fuse Block Middle Cover Tab
    G10915251Courtesy of MAZDA MOTORS CORP.
  21. Detach all of the relay and fuse block middle cover tabs and the relay and fuse block lower cover No. 2.
  22. Remove the relay and fuse block lower cover No. 2.
  23. While pressing the wiring harness clip tabs in the direction of the arrows (1) shown in the figure, push out the wiring harness clip in the direction of the arrow (2) shown in the figure to detach the wiring harness clip tabs from the relay and fuse block lower cover No. 2.
    Fig 11: Pressing Wiring Harness Clip Tabs
    G10915252Courtesy of MAZDA MOTORS CORP.
  24. Remove the wiring harness clip.
  25. Insert a tape-wrapped flathead screwdriver into the service hole in the position shown in the figure.
    Fig 12: Identifying Relay And Fuse Block Service Holes
    G10915253Courtesy of MAZDA MOTORS CORP.
  26. While pressing the relay and fuse block tab in the direction of the arrow (1) shown in the figure using a tape-wrapped flathead screwdriver, pull down the front wiring harness connector in the direction of the arrow (2) to detach the relay and fuse block tab from the front wiring harness connector.
    Fig 13: Pressing Relay And Fuse Block Tab
    G10915254Courtesy of MAZDA MOTORS CORP.
  27. Pull out all the front wiring harness connectors from the relay and fuse block.
  28. Remove the nut.
    Fig 14: Identifying Relay Front Wiring Harness Connectors
    G10915255Courtesy of MAZDA MOTORS CORP.
  29. Remove the front wiring harness.
  30. Set the removed relay and fuse block aside so that it does not scratch the vehicle and parts.
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