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Home >> Tesla >> 2024 >> Model 3 Long Range >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Infotainment System -- Model 3 >> Antennas and Amplifiers >> Antennas and Amplifiers - TLA, Telematics Control Unit (TCU) - Remove And Replace >> Install

Antennas and Amplifiers - TLA, Telematics Control Unit (TCU) - Remove And Replace: Install

  1. Install the clips (x2) and locator pin that attach the TCU to the body.
    G16600862Courtesy of TESLA, INC.
  2. Install the bolts (x2) that attach the TCU to the body.

    10 N.m (7.4 lbs-ft) 

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

    • Cordless Ratchet/Impact Driver
    • 2 in extension
    • 10 mm deep socket
    • Ratchet/torque wrench
    G16600863Courtesy of TESLA, INC.
  3. Connect the RH body electrical harness to the TCU connectors (x2).
    G16600864Courtesy of TESLA, INC.
  4. If equipped, install the original SIM card into the TCU slot with the gold pads facing downward.
    WARNING: Make sure that the SIM card goes into the slot, before releasing your grip of the SIM card.
    NOTE: Once the SIM card is fully pressed into the slot, the retaining tab will automatically return to its original position.
  5. Install the clips (x6) and locator pins (x2) that attach the rear end of the headliner to the body.
    NOTE: If inflatable air bags are used, deflate and remove them.
    NOTE: Make sure that the door seals correctly overlap the headliner.
    CAUTION: Take care not damage the headliner.
    G16600865Courtesy of TESLA, INC.
  6. Connect LV power. See LV BATTERY - LI-LON - DISCONNECT AND CONNECT .
  7. Enable Service Mode. See SERVICE MODE .
  8. Touch the Controls > Infotainment > Software > Software Reinstall > TCU  , and click Reinstall  to reinstall the TCU software.
  9. Align the locator pins (x3) to the slots, and then install the clips that attach the LH upper B-pillar trim to the vehicle.
    NOTE: Make sure that the door seal correctly overlaps the LH upper B-pillar trim.
    G16600866Courtesy of TESLA, INC.
  10. Align the locator pins (x3) to the slots, and then install the clips that attach the B-pillar middle trim to the vehicle.
    NOTE: Make sure that the door seal correctly overlaps the LH middle B-pillar trim.
    G16600867Courtesy of TESLA, INC.
  11. Install the screw that attaches the LH rear coat hook to the body.

    3.5 N.m (2.6 lbs-ft) 

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

    • Cordless Ratchet/Impact Driver
    • 2 in extension
    • Torx T25 socket
    • Torque Wrench Hexagon - 1060071-00-A (for installation only)
    G16600868Courtesy of TESLA, INC.
  12. Close the LH rear coat hook screw cover.
  13. Close the LH rear coat hook.
  14. Install the LH side rail trim. See A - B - C POST INTERIOR TRIM - SIDE RAIL ASSEMBLY, LH - REMOVE AND REPLACE .
  15. Move the LH front seat and backrest back to their original positions.
  16. Repeat step  9 through step  15 on the RH side of the vehicle.
  17. Once the software reinstallation is completed, check that the release notes appear on the touchscreen, indicating a successful reinstallation.
  18. Connect a laptop with Toolbox 3 to the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT .
  19. In Toolbox, click Action  tab, type "Swap Dual Bootstrap eSIM operator" in the search field, and select PROC_ICE_X_DUAL-BOOTSTRAP-E-SIM(i) , and then click Run  .
    NOTE: After the routine ends, click the "X" at the upper right corner of the prompt.
  20. Disconnect the laptop with Toolbox 3 from the vehicle. See TOOLBOX 3 - CONNECT AND DISCONNECT .
  21. Exit Service Mode.
  22. Raise all windows and close all doors.
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