23/05/2024 06:54:45

HV Harnesses -High Voltage Harness,Heatpump (Remove and Replace)

Correction code 4450010072 FRT 0.72 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. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure wearing proper PPE when performing the below procedure.

  • 2024-05-08: Added steps of reworking the new A/C compressor HV harness.
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
Only technicians who have been trained in High Voltage Awareness and have completed all required certification courses (if applicable) are permitted to perform this procedure. Proper personal protective equipment (PPE) and insulating HV gloves with a minimum rating of class 0 (1000V) must be worn at all times a high voltage cable, busbar, or fitting is handled. Refer to Tech Note TN-15-92-003, High Voltage Awareness Care Points for additional safety information.

Torque Specifications

Table 1. Torque Specifications: HV Harnesses -High Voltage Harness,Heatpump (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt that attaches the HV harness bracket to the A/C compressor
9 Nm (6.6 lbs-ft)
  • 13 mm 12-point deep socket
  • Cordless Ratchet/Impact Driver
  • Ratchet/torque wrench (for installation only)
 Reuse

Remove

  1. Place the vehicle on the 2-post lift.
    Tip: Ensure the vehicle is not charging.
  2. Open all doors and lower all windows.
  3. Move both front seats forward.
  4. Remove the underhood storage unit. See Exterior Fittings - Luggage Compartment Trim - Front Luggage Storage Compartment - Frunk Assembly (Remove and Replace).
  5. Perform Vehicle HV Disablement Procedure. See Vehicle HV Disablement Procedure.
  6. Remove the front aero shield panel. See Front Undertray - Model 3/Y, Front Aero Shield (Remove and Replace).
  7. Release the HV connector bracket from the stud on the LH side of the firewall.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.
  8. Pull the red locking tab away from the connector body, press down on the yellow locking tab and pull the connector backward, then press down on the green locking tab to disconnect the connector.
  9. Release the clips (x2) that attach the A/C compressor harness to studs on the RH side of the firewall.
  10. Lower the vehicle to a comfortable working height.
  11. Remove the fresh intake duct. See Cabin HVAC -HVAC, Fresh Air Intake (Remove and Replace).
  12. Use a clip prytool to release the retaining clips (x4) that attach the A/C compressor HV harness to the shock tower support brace.
    Informational PurposesAn informational icon, calling your attention
    Note
    Pull upward on the clip to assist with removal. Do not pull upward on the HV cable.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    The video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.
  13. Release the connector locking tab, and then disconnect the HVIL connector near the LH front strut tower.
    Informational PurposesAn informational icon, calling your attention
    Note
    DO NOT push down on the red locking tab. Pull the tab away from the connector until the connector is unlocked, and then continue pulling to release the connector.
    Tip: Use of the following tool(s) is recommended:
    • Pick Miniature Soft Grip, 90 degree tip, 6 in
  14. Release the connector locking tab, then disconnect the A/C logic electrical connector from the A/C compressor.
    Informational PurposesAn informational icon, calling your attention
    Note
    DO NOT push down on the red locking tab. Pull the tab away from the connector until the connector is unlocked, and then continue pulling to release the connector.
    Tip: Use of the following tool(s) is recommended:
    • Pick Miniature Soft Grip, 90 degree tip, 6 in
  15. Use a clip prytool to release the retaining clip that attaches the A/C compressor logic harness to the A/C compressor HV harness bracket.
  16. Disconnect the HV harness electrical connector from the A/C compressor.
    Tip: Use of the following tool(s) is recommended:
    • Pick Miniature Soft Grip, 90 degree tip, 6 in
  17. Remove the bolt that attaches the HV harness bracket to the A/C compressor.
    Tip: Use of the following tool(s) is recommended:
    • 13 mm 12-point deep socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench (for installation only)
  18. Remove the A/C compressor HV harness.

Install

  1. Check the new A/C compressor HV harness and the bracket. If the harness has a fir free clip on its branch but the bracket has no hole for it, rework the HV harness HVIL branch as following:
    1. Locate the fir tree clip on the X541 harness, cut the tape to remove the clip.
    2. Position an adhesive clip onto the same location.
    3. Use a zip tie to attach the adhesive clip onto the X541 harness, then tighten the zip tie and cut off excess part.
  2. Install the A/C compressor harness.
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure the HV harness bracket engages the upper bracket mount on the A/C compressor.
  3. Install the clips (x4) that attach the A/C compressor HV harness to the strut tower support brace.
  4. Connect the HVIL connector near the LH front strut tower, and then engage the locking tab.
    Informational PurposesAn informational icon, calling your attention
    Note
    Push the red locking tab into the connector to engage the locking mechanism. DO NOT push down or pull up on the red locking tab.
  5. Clean the bracket, and then install the fir free clip or the adhesive clip to the bracket.
  6. Install the bolt that attaches the HV harness bracket to the A/C compressor.
    9 Nm (6.6 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 13 mm 12-point deep socket
    • Cordless Ratchet/Impact Driver
    • Ratchet/torque wrench (for installation only)
  7. Connect the HV harness electrical connector to the A/C compressor.
  8. Install the retaining clip that attaches the A/C compressor logic harness to the A/C compressor HV harness bracket.
  9. Connect the A/C compressor logic electrical connector to the A/C compressor, and then engage the locking tab.
    Informational PurposesAn informational icon, calling your attention
    Note
    Push the red locking tab into the connector to engage the locking mechanism. DO NOT push down or pull up on the red locking tab.
  10. Raise the vehicle to a comfortable working height, and lower the lift onto locks.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION

    Make sure there is an audible click of the locks on both sides before lowering, otherwise the vehicle may tilt to one side.

    Make sure that the doors are clear of surrounding objects.

  11. Install the clips (x2) that attach the A/C compressor harness to the studs on the RH side of the firewall.
  12. Push the red locking tab toward the connector body to fully lock the connector.
  13. Install the HV connector bracket to the stud on the LH side of the firewall.
  14. Install the front aero shield panel. See Front Undertray - Model 3/Y, Front Aero Shield (Remove and Replace).
  15. Install the 2nd row lower seat cushion. See 2nd Row Seat Assemblies -2nd Row Seat Cushion (Remove and Replace).
  16. Connect the LV power. See LV Battery - Li-lon (Disconnect and Connect).
  17. Install the fresh intake duct. See Cabin HVAC -HVAC, Fresh Air Intake (Remove and Replace).
  18. Install the underhood storage unit. See Exterior Fittings - Luggage Compartment Trim - Front Luggage Storage Compartment - Frunk Assembly (Remove and Replace).
  19. Move both front seats to original position.
  20. Raise all windows and close all doors.
  21. Remove the lift arms from below the vehicle.