2025-03-12

High Voltage Header- Inverter- 3DU - Rear (Remove and Replace)

Correction code 4020020402 FRT 0.78 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.

Torque Specifications

Table 1. Torque Specifications:High Voltage Header- Inverter- 3DU - Rear (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt securing RDU HV cable bracket to RDU
10 Nm (7.4 lbs-ft)
  • Insulated
    • 10 mm socket
  • Electrical Protective Gloves
  • Electrical Protective Gloves
 Reuse
Bolts securing HV Header to RDU
6 Nm (4.4 lbs-ft)
  • 3/8 inch ratchet with rotary disc changeover RTCH-REV-3/8IN-72TEETH-L175MM ZEBRA
  • Torx T30 socket
 Replace

Remove

  1. Disconnect the LV power. See LV Power (Disconnect and Connect).
  2. Remove the 2nd row lower seat cushion. See 2nd Row Seat Cushion (Remove and Replace).
  3. Perform Vehicle HV Disablement Procedure. See Vehicle HV Disablement Procedure.
  4. Remove the middle aero shield panel. See Middle Aero Shield (Remove and Replace).
  5. Remove bolt securing rear drive unit HV cable bracket to rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Insulated
      • 10 mm socket
    • Electrical Protective Gloves
    • Electrical Protective Gloves
  6. 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.
  7. Remove bolts securing HV Header to rear drive unit.
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 3/8 inch ratchet with rotary disc changeover RTCH-REV-3/8IN-72TEETH-L175MM ZEBRA
    • Torx T30 socket
  8. Remove rear drive unit header from rear drive unit.
  9. Remove header retainer from rear drive unit.

Install

  1. Prepare to install the new inverter HV header to the rear drive unit.
  2. Install rear drive unit header into rear drive unit.
  3. Install the bolts (x2) that attach the HV header to the rear drive unit.
    6 Nm (4.4 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • 3/8 inch ratchet with rotary disc changeover RTCH-REV-3/8IN-72TEETH-L175MM ZEBRA
    • Torx T30 socket
  4. Perform the inverter air leak test. See Inverter Air Leak Test.
  5. Install bolt securing rear drive unit HV cable bracket to rear drive unit.
    10 Nm (7.4 lbs-ft)
    Informational PurposesAn informational icon, calling your attention
    TIp
    Use of the following tool(s) is recommended:
    • Insulated
      • 10 mm socket
    • Electrical Protective Gloves
    • Electrical Protective Gloves
  6. Install the middle aero shield panel. See Middle Aero Shield (Remove and Replace).
  7. Connect the LV power. See LV Power (Disconnect and Connect).
  8. Install the 2nd row lower seat cushion. See 2nd Row Seat Cushion (Remove and Replace).
  9. Remove the vehicle from the 2 post lift. See Raise Vehicle - 2 Stands.