校正代码 21153202 (HW3) 21153302 (HW4) FRT 0.78 0.66 注意：除非本程序中另有明确规定，否则上述校正代码和 FRT 反映的是执行本程序（包括关联程序）所需的所有工作。除非明确要求，否则请勿堆叠校正代码。 注意：请参阅平均维修工时，深入了解 FRT 及其创建方式。要提供有关 FRT 值的反馈，请发送电子邮件至LaborTimeFeedback@tesla.com。 注意：请参阅人员保护，确保在执行以下程序时穿戴适当的个人防护装备 (PPE)。

1. Open the LH front door and lower all windows.
2. Connect a laptop with Toolbox 3 to the vehicle. See Toolbox 3（连接和断开）.
3. Perform the Toolbox Owner Authorization Request.
   
   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.
4. Click on Dashboards > Car Computer Replacement and on the "Getting Started" page, click on Next Step.
5. 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.
   注

   The car computer will reboot several times during this step.
   
6. 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:

   • 车载电脑 (HW3)（拆卸和安装）
   • 车载电脑 (HW4)（拆卸和安装）
   Perform the following tasks that are described in the (Remove and Install) procedure:

   1. Remove the current car computer.
   2. Fasten the replacement car computer to the vehicle and connect all harnesses and hoses to the computer.
   3. Prepare the vehicle for a Coolant Air Purge.
   4. Reconnect LV power. See 低压电源（断开和连接）.
   5. Connect an LV maintainer to the vehicle, but do not disconnect the LV battery. See 低压维护设备（连接和断开）.
   6. Unlock the vehicle gateway.
   7. Start the Coolant Air Purge routine.
7. Reestablish the Toolbox laptop connection, and in the "Replace" page, click Next Step to go to the "Associate" page.
   
8. Follow the prompts to transfer configs and associate the replacement car computer. The car computer will reboot several times.
9. When association is complete and the VIN is confirmed online, click Next Step to go to the "Update" page.
   注

   If necessary, Reconnect the Toolbox connection.
   
10. Click Start Part Replacement OTA to deploy a software update to the vehicle.
    注

    If necessary, Reconnect the Toolbox connection.
    
11. Re-install software via UI
    注

    Via Controls > Service Mode > Software Reinstall
12. In Toolbox, click Next Page to go to the "Restore" page, and then follow the prompts to restore the vehicle profile.
    
13. Disconnect the laptop from the vehicle.
14. Install the remaining components that were removed for access.
    Select the appropriate Car Computer (Remove and Install) procedure:

    • 车载电脑 (HW3)（拆卸和安装）
    • 车载电脑 (HW4)（拆卸和安装）
15. 确保妥善处理旧车载电脑。请参阅车载电脑（处理）中给出的说明，将校正代码 21151007 作为一项单独的工项添加至“服务工单”中。