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Home >> Tesla >> 2019 >> Model 3 Performance >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Electrical System (2 Of 2) -- Model 3 >> Exterior Lights >> ECU - Headlight - Remove and Replace >> Install

ECU - Headlight - Remove and Replace: Install

  1. Connect the LH headlight ECU connector, and then position the ECU onto the headlight.
    NOTE: Position the seal to the headlight ECU, if necessary.
    NOTE: Align the electrical connector to the headlight ECU, and then close the locking tab while pushing the connector into the headlight ECU.
    NOTE: Make sure that the electrical connector and locking tab are fully seated.
    NOTE: Press the headlight ECU downward, and then turn it to align the fastener holes and anti-rotating guides.
  2. Install the screws that attach the headlight ECU to the LH headlight assembly.

    2.5 N.m (1.8 ft-lbs) 

    G14744207Courtesy of TESLA, INC.
  3. Install the LH headlight assembly. See HEADLIGHT - LH (REMOVE AND REPLACE) .
  4. Install the front fascia. See FASCIA - FRONT (REMOVE AND INSTALL) .
  5. Install the LH front wheel and the RH front wheel. See WHEEL (REMOVE AND INSTALL) .
  6. Install the underhood storage unit. See UNDERHOOD STORAGE UNIT (REMOVE AND REPLACE) .
  7. Install the hood latch cover. See COVER - HOOD LATCH (REMOVE AND REPLACE) .
  8. Install the cabin intake duct. See DUCT - CABIN INTAKE (REMOVE AND REPLACE) .
  9. Install the rear underhood apron. See UNDERHOOD APRON - REAR (REMOVE AND REPLACE) .
  10. Reinstall the vehicle firmware. See SOFTWARE REINSTALL - TOUCHSCREEN .
  11. Adjust the headlights. See HEADLIGHTS - ADJUST - NA (WALL METHOD) .
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