2025-03-18

Car Computer (Remove and Replace)

Código de corrección 21153202 (HW3) 21153302 (HW4) FRT 0.78 0.66 NOTA: Salvo que se indique lo contrario explícitamente en el procedimiento, el código de corrección anterior y el FRT reflejan todo el trabajo necesario para realizar este procedimiento, incluidos los procedimientos vinculados. No acumule códigos de corrección a menos que se le indique explícitamente que lo haga. NOTA: Consulte Tiempos de tarifa plana para obtener más información sobre los FRT y cómo se crean. Para enviar sus comentarios sobre los valores de FRT, escriba a ServiceManualFeedback@tesla.com. NOTA: Consulte Protección personal para asegurarse de llevar el EPI adecuado al realizar el siguiente procedimiento.NOTA: Consulte Precauciones ergonómicas para ver prácticas de trabajo seguras.

  • 2025-03-13: Added 3rd party security credentials check.
  • 2024-12-17: Added instructions on Ethernet Diagnostics retrofit for Model S with HW3 car computer
  • 2024-10-17: Added instruction for car computer disposal.
  • 2024-09-06: Added owner authorization request and LV maintainer steps.

Replace Car Computer

  1. Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3 (Conexión y desconexión).
  2. For Third Party repairs only: Perform the Toolbox Owner Authorization Request.
    Informational PurposesAn informational icon, calling your attention
    Nota
    If the repair was booked through Tesla Service, the customer has already given authorization. Go to the next step.
    1. Log in to https://toolbox.tesla.com/help/owner_authorization.
    2. On the left panel, click Owner Authorization Request, and then click Request Owner Authorization in the main panel.
    3. Complete and submit the form.
    4. Ask the vehicle owner to approve the authorization request that was sent to their email.
  3. Click on Dashboards > Car Computer Replacement and on the "Getting Started" page, click on Next Step.
  4. On the "Backup & Factory Reset" page, click Next Step and follow the prompts to perform a profile backup and factory reset on the car computer.
    Informational PurposesAn informational icon, calling your attention
    Nota
    The car computer will reboot several times during this step.
  5. Once the "Replace" page appears, the car computer can be replaced. Use the instructions in the appropriate "Remove and Install" procedure to replace the car computer:
    Select the appropriate Car Computer (Remove and Install) procedure:
  6. Perform the following tasks that are described in the (Remove and Install) procedure:
    1. Remove the current car computer.
    2. Install the replacement car computer to the vehicle and connect all harnesses and hoses to the computer.
    3. For Model S with HW3 car computer: determine whether an to Ethernet Diagnostics Retrofit is required:
      • If the car computer part number is 1637790-00-F or newer - An Ethernet Diagnostics Retrofit is not required. Go to the next step.
      • If the car computer part number is 1637790-00-F - An Ethernet Diagnostics Retrofit is required. Go to Ethernet Diagnostics Retrofit (HW3 Model S only).
    4. Prepare the vehicle for a Coolant Air Purge.
    5. Reconnect LV power. See Alimentación de baja tensión (Desconexión y conexión).
    6. Connect an LV maintainer to the vehicle, but do not disconnect the LV battery. See Dispositivo de mantenimiento de baja tensión (Conexión y desconexión).
      Informational PurposesAn informational icon, calling your attention
      Nota
      Durante la reinstalación del software / OTA tras sustituir una pieza que impide que los contactos de alta tensión se cierren, está permitido conectar tanto el dispositivo de mantenimiento como la batería de baja tensión. Consulte el artículo 5795500 de Toolbox para obtener más información.
    7. Unlock the vehicle gateway.

  7. Re-establish the Toolbox laptop connection, and in the "Replace" page, click Next Step.
  8. Solo para reparaciones de terceros: Introduzca las credenciales de inicio de sesión del profesional de seguridad del vehículo necesarias para acceder a la sección de Asociar ordenador del vehículo.
    Informational PurposesAn informational icon, calling your attention
    Nota
    Las piezas consideradas relevantes para la seguridad o el robo, o que puedan requerir una programación o configuración especiales, solo las pueden configurar profesionales del sector de la automoción que estén registrados en una organización de acreditación de seguridad de vehículos, o bien técnicos de servicio de Tesla.
  9. Follow the prompts to transfer configurations and associate the replacement car computer. The car computer will reboot several times.
  10. When association is complete and the VIN is confirmed online, click Next Step to go to the "Update" page.
    Informational PurposesAn informational icon, calling your attention
    Nota
    If necessary, Reconnect the Toolbox connection.
  11. Click Start Part Replacement OTA to deploy a software update to the vehicle.
    Informational PurposesAn informational icon, calling your attention
    Nota
    If necessary, Reconnect the Toolbox connection.
  12. Re-install software via UI
    Informational PurposesAn informational icon, calling your attention
    Nota
    Via Controls > Service Mode > Software Reinstall
  13. In Toolbox, click Next Page to go to the "Restore" page, and then follow the prompts to restore the vehicle profile.
  14. Disconnect the laptop from the vehicle.
  15. Install the remaining components that were removed for access.
    Select the appropriate Car Computer (Remove and Install) procedure:
  16. Asegúrese de desechar correctamente el antiguo ordenador del vehículo. Siga las instrucciones de Ordenador del vehículo (Desecho) y añada el código de corrección 21151007 como una actividad independiente a la visita de servicio.

Ethernet Diagnostics Retrofit (HW3 Model S only)

Parts required for this procedure:
  • 1783315-00-A MCU,RJ45,JUMPER
  • 1681904-00-A ETHERNET DIAGNOSTIC - RJ45 MODULE
If the vehicle requires an Ethernet diagnostics retrofit, perform the following steps when connecting the electrical harnesses to the replacement car computer. See Service Manual procedure Ordenador del vehículo (HW3) (Desinstalación e instalación).
  1. Connect all electrical harnesses to the car computer as instructed in the Service Manual, except for X455 and the gaming MCU connector.
    Figura 1. Connector X455 at RH side of car computer
    Figura 2. Gaming MCU connector at LH side of car computer
  2. Connect the X455 electrical harness to the Ethernet diagnostics jumper box, and then engage the connector lock.
    Figura 3. Ethernet diagnostics jumper harness connections
  3. Install the clip that attaches the Ethernet diagnostics jumper box to the RH body harness bracket.
  4. Connect the Ethernet diagnostics car computer connector (Figure 3, orange) to car computer connection X455, and then engage the locking tab.
  5. Route the diagnostic connector (Figure 3, green) behind the upper car computer mounting bracket.
  6. Insert a flexible pickup tool down the inner RH side of the center console, and pull the diagnostic connector up to the service panel.
  7. If not already present, install the Ethernet diagnostic RJ45 module on the service panel.
  8. Connect the diagnostic connector to the Ethernet diagnostic RJ45 module, and then engage the locking tab (Figure 29).
  9. Use electrical tape to attach the Ethernet diagnostics jumper harness to the IP harness.
  10. Connect the electrical harness to the car computer gaming MCU connector.
    Informational PurposesAn informational icon, calling your attention
    Nota
    Make sure the locking tab engages the connector port and locks the connector in place.
  11. Go to step 6.d of the “Replace Car Computer” section and complete the remainder of the procedure.