2026-04-30

Car Computer (Remove and Install)

Correction code 21151001 1.08 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT 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 wearing proper PPE when performing the below procedure. NOTE: See Ergonomic Precautions for safe and healthy working practices.

Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
Do not service the car computer and drive inverter concurrently. First, service the car computer. After installation of the car computer has completed successfully, then service the drive inverter.
  • 2026-04-28: Added the coolant vacuum refill step to avoid overheating.
  • 2023-07-14: Updated to the latest validation.
Equipment:
  • 1119171-00-A Plug,Car Computer Fluid Port
  • 1135762-00-A Kit, Svc Plug, Cooling Hose, Model 3

Remove

  1. Open the front doors and lower all the windows.
  2. Move the front passenger seat rearward.
  3. Unlock the vehicle gateway. See Gateway (Unlock).
  4. Perform the following routine using Service Mode or Toolbox (see 0005 - Service Modes): PROC_VCFRONT_X_START-THERMAL-FILL-DRAIN-COOLANTvia Toolbox:(link)
    Informational PurposesAn informational icon, calling your attention
    Note
    This routine has a time limit of 5 hours. If it takes longer than 5 hours, perform this step again.
  5. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace)
  6. Remove the fresh intake duct. See Duct - Fresh Intake (Remove and Replace).
  7. Disconnect 12V power. See 12V/LV Power (Disconnect and Connect).
  8. Place absorbent material below the car computer coolant hose connections to collect any spilled coolant.
  9. Release the clips on the coolant hoses connected to the car computer, and then disconnect the coolant hoses from the car computer.
  10. Install the car computer fluid port plug over the car computer coolant fittings.
  11. Plug the female fittings of the coolant hoses.
  12. Remove and discard the nuts that attach the car computer to the body.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 13 mm socket
  13. Remove the passenger footwell cover. See Cover - Footwell - Passenger (LHD) (Remove and Replace).
  14. Remove the glove box. See Glove Box - Without Knee Airbags (Remove and Replace) or Glove Box - With Knee Airbags (Non-Heat Pump) (Remove and Replace).
  15. Disconnect the glove box USB cable from the car computer.
  16. Remove the clip that attaches the passenger footwell air duct, and then rotate the duct down and away from the IP for access.
  17. Remove the bolt and nut that attach the ground strap to the car computer, and then release the strap from the car computer.
    3.5 Nm (2.6 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    Note
    Discard the nut after removal.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 8 mm socket
    • Torx T25 socket
  18. Disconnect the connectors (x3) on the front side of the car computer.
    Informational PurposesAn informational icon, calling your attention
    Note
    If equipped, release the connector lock the connectors before disconnecting.
  19. Disconnect the connectors (x10) on the LH side of the car computer.
    Informational PurposesAn informational icon, calling your attention
    Note
    If equipped, release the connector lock the connectors before disconnecting.
  20. Use needle nose pliers to pinch the release tabs on the harness guide clip, and then release the clip.
  21. Place absorbent material underneath the car computer.
  22. Slide the car computer inward to allow access to the connectors and harness clips.
    Informational PurposesAn informational icon, calling your attention
    TIp
    With the right hand on top of the car computer and left hand under the car computer, use the right hand to help push the airbag up and towards the rear of the vehicle to provide clearance for the visor.
  23. Remove the car computer shroud.
    Informational PurposesAn informational icon, calling your attention
    Note
    The car computer does not need to be fully removed for access. Removal of the mounting nuts allows sufficient movement.
  24. Release the clips (x2) from the top of the car computer.
  25. Release the connectors (x7) from the RH side of the car computer, and then remove the car computer from the vehicle.

Install

  1. Bring the car computer to where it installs into the vehicle, and then connect the electrical harness connectors (x21) to the car computer.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Avoid spilling coolant on the electrical connectors.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage the passenger airbag harness and connectors during installation.
  2. Fasten the clips that attach the electrical harness to the car computer.
  3. Install the car computer shroud onto the car computer.
  4. Slide the car computer into position on the bulkhead.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Use caution during the installation due to minimal clearance between the shroud and passenger airbag connectors and harness.
  5. Connect the glove box USB cable to the car computer.
  6. Install new nuts (x4) to attach the car computer to the body.
    7.1 Nm (5.2 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 13 mm socket
  7. Remove the plugs from the car computer and coolant hoses, and then secure the hose to the car computer.
  8. Remove the absorbent material from below the car computer coolant hose connection points and car computer.
  9. Perform a cooling system vacuum refill. See Cooling System (Vacuum Refill).
  10. Install the glove box. See Glove Box - Without Knee Airbags (Remove and Replace) or Glove Box - With Knee Airbags (Non-Heat Pump) (Remove and Replace).
  11. Install the passenger footwell cover. See Cover - Footwell - Passenger (LHD) (Remove and Replace).
  12. Install the fresh intake duct. See Duct - Fresh Intake (Remove and Replace).
  13. Install rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  14. Move the front passenger seat to the original position.
  15. Raise all the windows and close all the doors.