Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

Tesla Model 3 2017-2025 Service Manual / High Voltage System / HV Harnesses / Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

 Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

DRAFT

Warning:

This procedure was derived from pre-production computer models, and might not reflect the real-world situation. Warnings and cautions might be missing. Follow safety requirements and use extreme caution when working on or near high voltage systems and components.

Remove

  1. Open the trunk.
  2. Perform the vehicle electrical isolation procedure. See Vehicle Electrical Isolation Procedure.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Lift the HV cap straight up from over the DC input connector on the LH side of the penthouse, and then remove the HV cap from the vehicle.
  2. Remove the 2nd row LH seat back. See Seat Back - 2nd Row - LH (Remove and Install).

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clips that attach the low voltage electrical harness to the charge port to HV battery harness bracket at the penthouse.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Remove the bolts that attach the charge port to HV battery harness bracket at the penthouse, and then remove the bracket from the vehicle. Torque 10 Nm

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clip that attaches the charge port to HV battery harness to the LH lower C-pillar.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Raise the handle to disconnect the charge port to HV battery harness from the DC input assembly.
  2. Remove the trunk floor trim. See Trim - Floor - Trunk (Remove and Replace).
  3. Remove the trunk sill trim. See Trim - Sill - Trunk (Remove and Replace).
  4. Remove the rear trunk carpet. See Carpet - Rear Trunk (Remove and Replace).
  5. Remove the LH trunk side trim. See Trim - Side - Trunk - LH (Remove and Replace).

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the edge clip that attaches the low voltage electrical harness to the charge port closeout panel.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Disconnect the low voltage electrical harness from the charge port ECU connector.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clips that attach the charge port closeout panel to the charge port, and remove the panel from the charge port.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Remove the bolt that grounds the charge port assembly to the body. Torque 6 Nm

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Remove the bolts that attach the charge port assembly to the body. Torque 6 Nm

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clips that attach the low voltage electrical harness to the body and to the rear LH wheel well.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clips that attach the charge port to HV battery harness at the charge port.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Remove the bolt that attaches the charge port to HV battery harness bracket on top of the rear LH wheel well. Torque 6 Nm

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clips (x5) that attach the low voltage electrical harness along the charge port to HV battery harness.

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Remove the bolt that attaches the charge port to HV battery harness bracket at the LH lower C-pillar. Torque 6 Nm

  Harness - Charge Port to HV Battery (Single-Phase) (Remove and Replace)

  1. Release the clips (x3) that attach the charge port to HV battery harness on top of the rear LH wheel well and C-pillar.

Install

Installation procedure is the reverse of removal, except for the following:
  • Perform a penthouse air leak test. See Penthouse Air Leak Test.
  • Connect 12V power. See 12V Power (Disconnect and Connect).
  • Use Toolbox to update the latch actuator firmware.

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