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

Steering Controller - Remove and Replace: Install

2018 Tesla Model 3 BaseSECTION Install
  1. Install the steering wheel controls ECU into the bright surround, and then install the screws (x2) that attach the ECU to the surround.

    0.9 N.m (8 in-lbs) 

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

    • T10 Torx bit
    G14744066Courtesy of TESLA, INC.
  2. Install the bright surround into the steering wheel, and then install the screws (x4) that attach the surround to the steering wheel.

    5.4 N.m (4.0 ft-lbs) 

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

    • T20 socket
    G14744067Courtesy of TESLA, INC.
  3. Install the electrical harness into the steering wheel, and then connect the electrical harness to the steering wheel controls ECU connector.
    G14744068Courtesy of TESLA, INC.
  4. Move the horn assembly to the center, and then fasten the clips that attach the horn assembly.
    G14744069Courtesy of TESLA, INC.
  5. Connect the electrical harness to the RH steering wheel switch connector.
    G14744070Courtesy of TESLA, INC.
  6. Connect the electrical harness to the LH steering wheel switch connector.
    G14744071Courtesy of TESLA, INC.
  7. Connect the steering wheel electrical harness to the connector.
    G14744072Courtesy of TESLA, INC.
  8. Install the driver airbag. See AIRBAG - DRIVER (REMOVE AND REPLACE) .
  9. Connect 12v power. See 12V/LV POWER (DISCONNECT AND CONNECT) .
  10. Reinstall the vehicle firmware. See SOFTWARE REINSTALL - TOUCHSCREEN .
  11. In Toolbox, click Actions, type "SCCM" in the search field, click Play next to "PING-TP_SCCM", and then select Run  .
  12. Click Actions, type "VCLEFT" in the search field, click Play next to "TEST-SELF_ VCLEFT_X_SWC", and then select Run  .
  13. Click Actions, type "TEST-PYRO" in the search field, click Play next to "TEST-PYRO_RCM_X_DAB-STAGE-1", and then select Run  .
  14. Click Actions, type "TEST-PYRO" in the search field, click Play next to "TEST-PYRO_RCM_X_DAB-STAGE-2", and then select Run  .
  15. Disconnect the laptop from the vehicle.
  16. Install the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
  17. Install the 2nd row lower seat cushion. See SEAT CUSHION - LOWER - 2ND ROW (REMOVE AND REPLACE) .
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.