Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Harness - Drive Unit - Front (Remove and Replace)

Tesla Model 3 2017-2025 Service Manual / Electrical / Harnesses / Harness - Drive Unit - Front (Remove and Replace)

Harness - Drive Unit - Front (Remove and Replace)

Remove

  1. Partially raise the vehicle to a comfortable working height. See Raise Vehicle - 2 Post Lift.
  2. Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace).
  3. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  4. Disconnect 12V power. See 12V Power (Disconnect and Connect).
  5. Fullly raise the vehicle.
  6. Remove the front aero shield panel. See Panel - Aero Shield - Front (Remove and Replace).

Harness - Drive Unit - Front (Remove and Replace)

  1. Release the grey locking tab, and then press on the tab to disconnect the front drive unit logic connector near the LH side of the front subframe.

Harness - Drive Unit - Front (Remove and Replace)

  1. Release the locking tab, and then push the handle downward to disconnect the front drive unit inverter logic connector.

Harness - Drive Unit - Front (Remove and Replace)

  1. Release the red locking tab, and then press down on the tab to disconnect the resolver logic connector.

Harness - Drive Unit - Front (Remove and Replace)

  1. Release the grey locking tab, and then press down on the tab to disconnect the oil pump connector.

Harness - Drive Unit - Front (Remove and Replace)

  1. Release the clip that attaches the front drive unit harness to the front drive unit motor.

Other assemblies hidden for clarity
Other assemblies hidden for clarity

  1. Release the clips that attach the front drive unit harness to the front subframe.

Harness - Drive Unit - Front (Remove and Replace)

  1. Release the clips that attach the front drive unit harness to the inverter.
  2. Remove the front drive unit harness from the front subframe.

Install

Installation procedure is the reverse of removal, except for the following:

Caution:

Perform a push-pull test on the front drive unit harness connectors to verify that the connectors are fully attached.

    READ NEXT:

     Harness - Headliner (Remove and Replace)

    Remove Remove the headliner. See Headliner (Remove and Install). Disconnect the electrical harness from the LH headliner tweeter connector. Disconnect the electrical harness from the front ove

     Harness - Instrument Panel (Remove and Replace)

    Remove Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace). Remove the cabin intake duct. See Duct - Cabin Intake (Remove and Replace). Remove the hood latch cov

     Harness - Main Front (Remove and Replace)

    SEE MORE:

     Pipe - High Pressure - Compressor to Condenser- Remove

    Remove Raise and support the vehicle. See Raise Vehicle - 2 Post Lift. Remove the 2nd row lower seat cushion. See Seat Cushion - Lower - 2nd Row (Remove and Replace). Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace). Remove the cabin intake duct. See Duct -

     Polish

    Remove the cutting pad from the buffer, and then install a polishing pad on the buffer. Apply 4 evenly spaced 20 mm diameter dollops of polishing compound on the polishing pad. Set the buffer speed according to region, and while the buffer is off, place the tool on top of the affected area. NA:

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