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HOMESERVICE MANUALSTESLA2018MODEL 3 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEELECTRICAL SYSTEM (2 OF 2) -- MODEL 3ELECTRONIC CONTROL MODULESMODULE - BODY CONTROLLER - FRONT (RWD) - REMOVE AND REPLACEREMOVE
2018 Tesla Model 3 Base

Module - Body Controller - Front (RWD) - Remove and Replace: Remove

2018 Tesla Model 3 BaseSECTION Remove
  1. Remove the 2nd row lower seat cushion. See SEAT CUSHION - LOWER - 2ND ROW (REMOVE AND REPLACE) .
  2. Remove the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
  3. Remove the cabin intake duct. See DUCT - CABIN INTAKE (REMOVE AND REPLACE) .
  4. Remove the hood latch cover. See COVER - HOOD LATCH (REMOVE AND REPLACE) .
  5. Remove the underhood storage unit. See UNDERHOOD STORAGE UNIT (REMOVE AND REPLACE) .
  6. Remove the LH and RH wiper arms. See WIPER ARMS (REMOVE AND REPLACE) .
  7. Remove the cowl screen panel. See PANEL - COWL SCREEN (REMOVE AND REPLACE) .
  8. Disconnect 12V power. See 12V/LV POWER (DISCONNECT AND CONNECT) .
  9. Remove the 12V battery strap. See STRAP - 12V BATTERY (REMOVE AND REPLACE) .
  10. Remove the 12V auxiliary battery. See 12V/LV BATTERY (REMOVE AND REPLACE) .
  11. Remove the 12V battery bracket. See BRACKET - 12V BATTERY (RWD) (REMOVE AND REPLACE) .
  12. Remove the bolt that attaches the thermal harness cover to the front body controller module, and then remove the cover from the module.
    G14743814Courtesy of TESLA, INC.
  13. Disconnect the thermal harness from the front body controller module connector.
    G14743815Courtesy of TESLA, INC.
  14. Release the clip that attaches the suction/liquid A/C combination lines to the body near the TXV, and then move the electrical harness aside to gain access to the front body controller module.
    G14743816Courtesy of TESLA, INC.
  15. Remove the bolts (x9) that attach the front body controller module cover to the front body controller module, and then remove the cover.
    G14743817Courtesy of TESLA, INC.
  16. Disconnect the electrical harness from the front body controller module connectors (x4).
    G14743818Courtesy of TESLA, INC.
  17. Remove and discard the nuts (x6) and bolt that attach the power and ground cables to the front body controller module.
    G14743819Courtesy of TESLA, INC.
  18. Remove the bolts (x3) that attach the front body controller module to the body.
    G14743820Courtesy of TESLA, INC.
  19. Release the clips (x2) that attach the bottom of the front body controller module to the body, and then remove the lower busbar from the stud.
    G14743821Courtesy of TESLA, INC.
  20. Remove the bolt that attaches the ground strap to the upper rear of the front body controller module, and then remove the ground strap from the module.
    G14743822Courtesy of TESLA, INC.
  21. Remove the bolt that attaches the ground strap to the lower right side of the front body controller module, and then remove the ground strap from the module.
    G14743823Courtesy of TESLA, INC.
  22. Remove the bolt that attaches the ground strap to the lower rear of the front body controller module, and then remove the ground strap from the module.
    G14743824Courtesy of TESLA, INC.
  23. Remove the front body controller module from the vehicle.
    G14743825Courtesy 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.