LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Tesla >> 2014 >> Model S Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Seats -- Model 3) >> Front Seat Tracks and Motors >> Module (ECU) - Occupant Classification System (OCS) - Front Passenger - Remove and Replace >> Install
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Module (ECU) - Occupant Classification System (OCS) - Front Passenger - Remove and Replace: Install

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2023 Tesla Model 3, 2022 Tesla Model 3, 2021 Tesla Model 3, 2020 Tesla Model 3, and 2019 Tesla Model 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the front passenger OCS ECU module to the vehicle, and then secure the tabs (x2) that attach the module to the seat assembly.
    G00621778Courtesy of TESLA, INC.
    G00621781Courtesy of TESLA, INC.
    G00621782Courtesy of TESLA, INC.
    G00621783Courtesy of TESLA, INC.
  2. Connect the RH front seat harness connector to the OCS ECU module.
    G00621780Courtesy of TESLA, INC.
  3. Connect the self capacitance trace connector to the OCS ECU module.
    G00621779Courtesy of TESLA, INC.
  4. Move the front passenger seat to the original position.
  5. Raise the RH front window and close the RH front door.
  6. If servicing the front passenger seat in a North American vehicle:
    1. Remove all objects from the front passenger seat before beginning calibration.
    2. On the vehicle touchscreen, touch Controls (Vehicle Icon) > Software  and check the vehicle firmware version.

      If the vehicle firmware is 2023.2.11 or newer, perform a software reinstall. See SOFTWARE REINSTALL - TOUCHSCREEN .

      If the vehicle firmware is not 2023.2.11 or newer, update the vehicle firmware. See SOFTWARE UPDATE .

    3. Locally connect a laptop with Toolbox 3 to the vehicle. See TOOLBOX 3 (CONNECT AND DISCONNECT) .
    4. Unlock the vehicle gateway. See GATEWAY (UNLOCK) .
    5. In Toolbox, click on the Actions  tab, and then search for "OCS".
    6. Run  the PROC_OCS1P_SELF-CALIBRATION routine.
    7. Click on the Actions  tab, and then search for "Seat calibration".
    8. Run  the PROC_VCRIGHT_SEAT-TEST-CALIBRATE routine.
    9. Disconnect Toolbox and remove the laptop from the vehicle.
scientia non olet · About LEMON Manuals