Correction code 21153302 FRT 1.44 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and FRT listed above reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. NOTE: See Personal Protection to make sure you are wearing proper PPE when performing the procedure below. NOTE: See Ergonomic Precautions for safe and healthy working practices.

1. Make sure that the vehicle is in "Park" mode during this procedure.
2. Connect a laptop with Toolbox to the vehicle. See Toolbox (Connect and Disconnect).
3. For Third Party repairs only: Perform the Toolbox Owner Authorization Request.
   Note

   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.
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.
   Note

   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 Car Computer (LHD) (Remove and Install) to perform the following:
   1. Remove the current car computer.
   2. Fasten the replacement car computer to the vehicle.
      Note

      The new car computer bracket does not have threaded holes for the bolts (x2) that attach the car computer to the bulkhead. When installing the new car computer to the bulkhead, attach new nuts (x3) and use self tapping M8 bolts (x2) to thread holes in the car computer bracket.

      

      20 Nm (14.7 lbs-ft)
      
   3. Connect all harnesses and hoses to the computer.
   4. Connect the electrical harness to the front passenger air bag.
   5. Prepare the vehicle for a Coolant Air Purge.
   6. Install the front passenger knee airbag (if equipped) and any air ducts that were removed.
   7. Install the glove box and front passenger footwell cover.
   8. Reconnect LV power. See LV Power (Disconnect and Connect).
   9. Connect an LV maintainer to the vehicle, but do not disconnect the LV battery. See LV Maintainer (Connect and Disconnect) (Maintenance).
      Note

      During Software Redeploy / OTA after replacing a part which prevents HV contactors closing, it is permitted to connect both the LV maintainer and the LV battery. Refer to Toolbox article 5795500 for more information.
   10. Perform the Coolant Air Purge routine: TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGEvia Service Mode:
       • Thermal ➜ Actions ➜ Coolant Purge Stop or Coolant Purge Start
       • Thermal ➜ Coolant System ➜ Coolant Purge Start
       via Service Mode Plus:
       • Drive Inverter ➜ Front Drive Inverter Replacement ➜ Coolant Air Purge
       • Drive Inverter ➜ Rear Drive Inverter Replacement ➜ Coolant Air Purge
       • Drive Inverter ➜ Rear Left Drive Inverter Replacement ➜ Coolant Air Purge
       • Drive Inverter ➜ Rear Right Drive Inverter Replacement ➜ Coolant Air Purge
       • Drive Unit ➜ Front Drive Unit Replacement ➜ Coolant Air Purge
       • Drive Unit ➜ Rear Drive Unit Replacement ➜ Coolant Air Purge
       via Toolbox:(link)
7. Reestablish the Toolbox laptop connection, and in the "Replace" page, click Next Step.
   
8. For Third Party repairs only: Enter the vehicle security professional login credentials that are required in order to proceed to the "Associate Car Computer" section.
   Note

   Parts considered security and/or theft-relevant, or which may require special programming and/or setup, are only able to be configured by automotive professionals that are registered with a vehicle security accreditation organization, or by Tesla Service Technicians.
9. Follow the prompts to transfer configs 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.
    Note

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

    If necessary, Reconnect the Toolbox connection.
    
12. Use the vehicle touchscreen to install the software package. See Software Reinstall - Touchscreen.
13. In Toolbox, click Next Page to go to the "Restore" page, and then follow the prompts to restore the vehicle profile.
    
14. If the car computer is equipped with a physical SIM card, perform the routine below; otherwise skip this step.
    1. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): PROC_ICE_X_ENABLE-DISABLE-SIM-CARDvia Service Mode Plus:Infotainment ➜ Connectivity ➜ Toggle SIMvia Toolbox:(link)
15. Disconnect the laptop from the vehicle.
16. Install the remaining components that were removed for access. See Car Computer (LHD) (Remove and Install).
17. Make sure to properly dispose of the old car computer. Follow the instructions in Car Computer (Dispose) and add correction code 21151007 as a separate activity to the Service Visit.