23/05/2024 06:53:35

Ground Strap - Rear Drive Unit (Remove and Replace)

Correction code 4001020012 FRT 1.86 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.

  • 2023-12-11: Updated last step with cross reference to Alignment Requirement Tables.
  • 1129348-00-A XP-10 Power Supply, XP-10
  • 1099645-00-B Fixture, Subframe, Model 3
  • 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.

Torque Specifications

Table 1. Torque Specifications: Ground Strap - Rear Drive Unit (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Nut that attaches the rear drive unit ground strap to the body
10 Nm (7.4 lbs-ft)
  • 10 mm 12-point deep socket
  • Ratchet/torque wrench
 Reuse
Bolts that attach the rear subframe to the body
165 Nm (121.7 lbs-ft)
  • 21 mm socket
  • 6 in extension
  • Ratchet/torque wrench
 Replace
Bolt that attaches the ground strap to the rear drive unit
6 Nm (4.4 lbs-ft)
  • 10 mm socket
  • 4 in extension
  • Ratchet/torque wrench
 Reuse

Remove

  1. Raise and support the vehicle. See GUID-0ECF2493-88F6-48E9-ADBB-9AE1D52E217C.html.
  2. Remove the rear underhood apron. See Underhood Apron - Rear (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 Seat Cushion - 2nd Row (Remove and Replace).
  5. Perform Vehicle HV Disablement Procedure. See Vehicle HV Disablement Procedure.
  6. Remove the LH and RH wheels. See Wheel Assembly (Remove and Install).
  7. Remove the rear aero shield panel. See Panel - Aero Shield - Rear (Remove and Replace).
  8. Remove the LH and RH rear suspension covers. See Cover - Rear Suspension - LH (Remove and Replace).
  9. Remove the rear fascia. See Fascia Assembly - Rear \(Remove and Install\).
  10. Disconnect the RH subframe harness electrical connector.
  11. Use a clip pry tool to release the clip that attaches the RH subframe harness to the body.
  12. Remove the nut that attaches the rear drive unit ground strap to the body.
    Tip: Use of the following tool(s) is recommended:
    • 10 mm 12-point deep socket
    • Ratchet/torque wrench
  13. Remove the stabilizer bar. See Stabilizer Bar - Rear (Remove and Replace).
  14. Remove the rear HV battery skid plate. See Skid Plate - HV Battery - Rear (Remove and Replace).
  15. Remove the rear drive unit inlet hose. See Hose - Inlet - Rear Drive Unit Inverter (Remove and Replace).
  16. Remove the HV battery to the rear drive unit harness. See HV Harness - HV Battery to Rear Drive Unit (Remove and Replace).
  17. Position the rear subframe lifting tool beneath the rear subframe.
  18. Attach an air hose to the rear subframe lifting tool.
  19. With an assistant, raise the rear subframe lifting tool to support the rear subframe.
  20. Loop the straps over the rear subframe, hook the ends of the straps to the metal rings, and then pull the straps tight to restrain the subframe to the rear subframe lifting tool.
    Informational PurposesAn informational icon, calling your attention
    Note
    Lower the vehicle to give more slack to connect the straps to the rings, if necessary.
  21. Mark the LH and RH rear subframe bolts for realignment during installation.
    Figure 1. LH shown; RH similar
  22. Remove the LH and RH rear subframe front shear plates. See Shear Plate - Rear Subframe - LH (Remove and Replace).
  23. Remove and discard the LH and RH bolts that attach the rear subframe to the body.
    Tip: Use of the following tool(s) is recommended:
    • 21 mm socket
    • 6 in extension
    • Ratchet/torque wrench
    Figure 2. LH shown; RH similar
  24. With an assistant, slowly lower the rear subframe and rear drive unit about 3.25 in (8.25 cm) from the vehicle.
  25. Tilt the subframe fixture forward to access the ground strap.
  26. Use a clip pry tool to release the clip that attaches the rear drive unit ground strap to the rear subframe.
  27. Remove the bolt that attaches the ground strap to the rear drive unit.
    Tip: Use of the following tool(s) is recommended:
    • 10 mm socket
    • 4 in extension
    • Ratchet/torque wrench

Install

  1. Install the bolt that attaches the ground strap to the rear drive unit.
    6 Nm (4.4 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 10 mm socket
    • 4 in extension
    • Ratchet/torque wrench
  2. Fasten the clip that attaches the rear drive unit ground strap to the rear subframe.
  3. Return the subframe fixture forward to its original position.
  4. Raise the rear subframe and rear drive unit.
  5. Hand-tighten the LH and RH bolts that attach the rear subframe to the body.
    Figure 3. LH shown; RH similar
  6. Install the LH and RH rear subframe front shear plates. See Shear Plate - Rear Subframe - LH (Remove and Replace).
  7. Position the subframe to the locations as marked during removal.
  8. Torque the LH and RH bolts that attach the rear subframe to the body, and then mark them with a paint pen after torquing.
    165 Nm (121.7 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 21 mm socket
    • 6 in extension
    • Ratchet/torque wrench
    Figure 4. LH shown; RH similar
  9. Lower the rear subframe lifting tool from the vehicle.
  10. Disconnect the air hose from the rear subframe lifting tool.
  11. Remove the subframe lifting tool from the vehicle.
  12. Install the HV battery to the rear drive unit harness. See HV Harness - HV Battery to Rear Drive Unit (Remove and Replace).
  13. Install the rear drive unit inlet hose. See Hose - Inlet - Rear Drive Unit Inverter (Remove and Replace).
  14. Install the rear HV battery skid plate. See Skid Plate - HV Battery - Rear (Remove and Replace).
  15. Install the stabilizer bar. See Stabilizer Bar - Rear (Remove and Replace).
  16. Install the nut that attaches the rear drive unit ground strap to the body.
    10 Nm (7.4 lbs-ft)
    Tip: Use of the following tool(s) is recommended:
    • 10 mm 12-point deep socket
    • Ratchet/torque wrench
  17. Fasten the clip that attaches the RH subframe harness to the body.
  18. Connect the RH subframe harness electrical connector.
  19. Install the rear fascia. See Fascia Assembly - Rear \(Remove and Install\).
  20. Install the LH and RH rear suspension covers. See Cover - Rear Suspension - LH (Remove and Replace).
  21. Install the rear aero shield panel. See Panel - Aero Shield - Rear (Remove and Replace).
  22. Perform the vacuum refill procedure. See Cooling System - Vacuum Refill.
  23. Install the LH and RH wheels. See Wheel Assembly (Remove and Install).
  24. Install the 2nd row lower seat cushion. See Seat Cushion - 2nd Row (Remove and Replace).
  25. Connect the LV power. See LV Battery - Li-lon (Disconnect and Connect).
  26. Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  27. Install the LH and RH rear wheels. See Wheel Assembly (Remove and Install).
  28. Remove the vehicle from the 2 post lift. See GUID-0ECF2493-88F6-48E9-ADBB-9AE1D52E217C.html.
  29. In this procedure, the front or rear subframe was removed and reinstalled. Therefore, refer to the Alignment Requirement tables to determine whether an EPAS alignment check (EC) or four wheel alignment check (AC) is necessary. If performed, add the alignment check/adjust as a separate activity. See Alignment Requirement - Suspension.