23/05/2024 06:48:10

HV Harnesses - Assembly, HV Harness, RDU (Remove and Replace)

Correction code 4450010092 FRT 0.96 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.

  • 1140311-00-A Lever Lock, HV Connector, Model 3
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.

Remove

  1. Raise and support the vehicle. See Raise Vehicle - 2 Stands.
  2. Remove the rear underhood apron. See Underhood Trim - Rear Apron Assembly (Remove and Replace).
  3. Disconnect the LV power. See LV Battery - Li-lon (Disconnect and Connect).
  4. Remove the 2nd row lower seat cushion. See 2nd Row Seat Assemblies -2nd Row Seat Cushion (Remove and Replace).
  5. Perform Vehicle HV Disablement Procedure. See Vehicle HV Disablement Procedure.
  6. Remove the rear aero shield panel. See Rear Undertray And Diffuser -Model 3/Y, Rear Aero Shield (Remove and Replace).
  7. Remove the rear HV battery skid plate. See High Voltage Battery Assembly - Skid Plate, Rear, ECoat, Enclosure (Remove and Replace).
  8. Remove the rear drive unit inlet hose. See Hoses - Tube (PT), RDU Inverter Inlet (Remove and Replace).
  9. Remove the bolt that attaches the HV battery to rear drive unit harness bracket to the rear drive unit inverter.
    Tip: Use of the following tool(s) is recommended:
    • 10 mm socket
    • Cordless hex driver
    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.
  10. Remove the nut that attaches the HV battery to rear drive unit harness bracket to the HV battery.
    Tip: Use of the following tool(s) is recommended:
    • 6 in nutsetter + 10 mm magnetic deep
    • Cordless hex driver
  11. Slide the release to unlock the HV battery rear drive unit connector handle of the rear drive unit to HV battery harness from the secured position.
  12. Fully raise the handle on the HV battery rear drive unit connector.
  13. Disconnect the electrical connector that attaches the rear drive unit HV harness to the HV battery.
  14. Repeat step 11 through step 13 on the other side of the rear drive unit HV harness.
  15. Move the HV battery to rear drive unit harness down and out between the rear subframe and the HV battery.
    Informational PurposesAn informational icon, calling your attention
    Note
    Rotate the harness as necessary to move the rear drive unit inverter connector end of the harness between the subframe and HV battery.

Install

  1. Move the rear drive unit inverter connector end of the HV battery to rear drive unit harness up and in between the rear subframe and the HV battery.
    Informational PurposesAn informational icon, calling your attention
    Note
    Rotate the harness as necessary to move the connector between the subframe and HV battery.
  2. Fully raise the handle on the electrical connector that attaches the rear drive unit HV harness to the rear drive unit.
  3. Install the HV connector special tool onto the electrical connector that attaches the rear drive unit HV harness to the rear drive unit.
  4. Use both hands to firmly connect the electrical connector that attaches the rear drive unit HV harness to the rear drive unit.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Make sure that the connector fits the header squarely and tightly, and that both retention pins enter the handle.
  5. Remove the HV connector special tool from the electrical connector that attaches the rear drive unit HV harness to the rear drive unit.
  6. While pressing the electrical connector that attaches the rear drive unit HV harness to the rear drive unit., fully lower the handle.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Make sure that the handle does not bind as it is lowered.
  7. Slide the release to lock the electrical connector that attaches the rear drive unit HV harness to the rear drive unit in the secured position.
  8. Verify that the electrical connector is fully seated, and compare both sides of the connector that it is properly secured in place.
    Informational PurposesAn informational icon, calling your attention
    Note
    An improperly seated connector might lead to connector damage and rear drive unit problems later on.
  9. Repeat step 2 through step 8 on the other side of the rear drive unit HV harness.
  10. Install the nut that attaches the HV battery to rear drive unit harness bracket to the HV battery.
    10 Nm (7.4 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 10 mm socket
    • Cordless hex driver
    • Ratchet/torque wrench
  11. Install the bolt that attaches the HV battery to rear drive unit harness bracket to the rear drive unit inverter.
    6 Nm (4.4 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 10 mm socket
    • Cordless hex driver
    • Ratchet/torque wrench
  12. Move the end of the rear drive unit inlet hose up and in between the HV battery and rear subframe, and then up and in between the rear drive unit and rear subframe.
  13. Install the rear drive unit inlet hose. See Hoses - Tube (PT), RDU Inverter Inlet (Remove and Replace).
  14. Install the rear HV battery skid plate. See High Voltage Battery Assembly - Skid Plate, Rear, ECoat, Enclosure (Remove and Replace).
  15. Install the rear aero shield panel. See Rear Undertray And Diffuser -Model 3/Y, Rear Aero Shield (Remove and Replace).
  16. Install the 2nd row lower seat cushion. See 2nd Row Seat Assemblies -2nd Row Seat Cushion (Remove and Replace).
  17. Connect the LV power. See LV Battery - Li-lon (Disconnect and Connect).
  18. Remove the coolant bottle cap, and then fill the coolant to the proper level.
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure that the coolant level is at the "Max" line.
  19. Connect the vehicle to a laptop with Toolbox 3.0. See Toolbox 3 (Connect and Disconnect).
  20. In Toolbox 3.0, click Actions/Autodiag, type "Purge" into the search field, click TEST_VCFRONT_X_THERMAL-COOLANT-AIR-PURGE, click Run, and allow the routine to complete.
    Informational PurposesAn informational icon, calling your attention
    Note
    Make sure vehicle is not in Drive, shifting the vehicle into Drive will stop this routine. The test will last approximately 10 mins. The test will vary speeds from 3500-6500 RPM (idle speed = ~1500 RPM) and actuate the valve between series and parallel. If speed hovers at 7000 RPM, it indicates the pump is air locked, perform the vacuum fill again. Continue to add coolant and purge until the coolant level reaches between the NOM and MAX Lines on the bottle.
  21. Inspect the coolant level and top off as necessary, and then install the coolant bottle cap.
    Informational PurposesAn informational icon, calling your attention
    Note
    Ensure that the coolant level is at the "Max" line.
  22. Install the rear underhood apron. See Underhood Trim - Rear Apron Assembly (Remove and Replace).
  23. Remove the vehicle from the 2 post lift. See Raise Vehicle - 2 Stands.