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HOMESERVICE MANUALSTESLA2018MODEL 3 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSELECTRICAL SYSTEM (2 OF 2) -- MODEL 3ELECTRONIC CONTROL MODULESMODULE - BODY CONTROLLER - LH (RHD) - REMOVE AND REPLACEREMOVE
2018 Tesla Model 3 Base

Module - Body Controller - LH (RHD) - Remove and Replace: Remove

2018 Tesla Model 3 BaseSECTION Remove
  1. Remove the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
  2. Open the glove box.
  3. Disconnect 12V power. See 12V/LV POWER (DISCONNECT AND CONNECT) .
  4. Remove the glove box. See GLOVE BOX - WITHOUT KNEE AIRBAGS (REMOVE AND REPLACE) .
    NOTE: For RHD vehicles, remove the passenger footwell cover. See COVER - FOOTWELL - PASSENGER (RHD) (REMOVE AND REPLACE) .
  5. Remove the LH footwell duct. See DUCT - FOOTWELL - LH (RHD) (REMOVE AND REPLACE) .
  6. Remove the LH air wave duct. See DUCT - AIR WAVE - LH (RHD) (REMOVE AND REPLACE) .
  7. Release the clip that attaches the electrical harness to the IP carrier.
    G14743878Courtesy of TESLA, INC.
  8. Disconnect the clips that attach the LH front door electrical connectors to the LH body controller module.
    G14743879Courtesy of TESLA, INC.
  9. Release the connector lock, and then disconnect the LH front door electrical connector from the LH body controller module.
    G14743880Courtesy of TESLA, INC.
  10. Release the connector lock, and then disconnect the front seat electrical connector from the LH body controller module.
    G14743881Courtesy of TESLA, INC.
  11. Release the connector lock, and then disconnect the instrument panel electrical connector from the LH body controller module.
    G14743882Courtesy of TESLA, INC.
  12. Disconnect the HVAC electrical connector from the LH body controller module.
    G14743883Courtesy of TESLA, INC.
  13. Disconnect the inline electrical harness connector X909 from the LH body harness, and then separate it from the LH body controller module.
    G14743884Courtesy of TESLA, INC.
  14. Remove and discard the nut that attaches the 12V power cable to the LH body controller module, and then remove the 12V power cable from the LH body controller module.

    Tip: Use of the following tool(s) is recommended:

    • 10 mm 12-point deep socket
    • 1/4 in std ratchet
    • 1/4 in torque wrench (installation only)
    • 4 in extension
    G14743885Courtesy of TESLA, INC.
  15. Disconnect the front wiring harness connector from the LH body controller module.
    G14743886Courtesy of TESLA, INC.
  16. Disconnect the body 3 electrical connector from the LH body controller module.
    G14743887Courtesy of TESLA, INC.
  17. Disconnect the body 1 electrical connector from the LH body controller module.
    G14743888Courtesy of TESLA, INC.
  18. Disconnect the body 2 electrical connector from the LH body controller module.
    G14743889Courtesy of TESLA, INC.
  19. Disconnect the electrical connector from the headliner electrical connector.
    G14743890Courtesy of TESLA, INC.
  20. Release the electrical harness clips that attach the LH body controller module to the vehicle.
    G14743891Courtesy of TESLA, INC.
  21. Move the LH body harness away from the LH body controller module.
  22. Release the clip that attaches the LH front door electrical harness to the LH body controller module.
    G14743892Courtesy of TESLA, INC.
  23. Remove and discard the nut that attaches the LH body controller module to the vehicle.

    Tip: Use of the following tool(s) is recommended:

    • 10 mm 12-point deep socket
    • 1/4 in std ratchet
    • 1/4 in torque wrench (installation only)
    • 2 in extension
    G14743893Courtesy of TESLA, INC.
  24. Slide the LH body controller upwards to release the W-clip, and then move the LH body controller module out from underneath the instrument panel.
    G14743894Courtesy of TESLA, INC.
  25. Remove the LH body controller module from the vehicle.
  26. Release the clips that attach the shroud to the module.
    NOTE: A shroud should be installed on the new body controller module.
    G14743895Courtesy of TESLA, INC.
    G14743896Courtesy of TESLA, INC.
RENDER: 1.0x

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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.