Tesla Model 3: Harness - Main Front- Remove

Remove

1. Open the front LH and front RH doors
2. Open the hood.
3. Place wheel chocks on both rear wheels.
4. Put vehicle in Neutral.
5. Disconnect 12V power. See 12V Power (Disconnect and Connect).
6. Remove the LH lower A-pillar trim. See Trim - A-Pillar - Lower - LH (Remove and Replace).
7. Remove the driver knee airbag. See Airbag - Knee - Driver (Remove and Install).
8. Release the clips that attach the footrest.
9. Remove the RH knee airbag. See Airbag - Knee - Driver (Remove and Replace).
10. Remove the front passenger knee airbag. See Airbag - Knee - Front Passenger (Remove and Replace)
11. Remove the main instrument panel decor. See Decor Trim - Instrument Panel - Main (Remove and Replace).
12. Remove the glove box. See Glove Box (LHD) (Remove and Replace).
13. Remove the RH footwell duct. See Duct - Footwell - RH (Remove and Replace).
14. Remove the RH air wave duct. See Duct - Air Wave - RH (Remove and Replace).
15. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
16. Remove the 12V auxiliary battery. SeeBattery - 12V (Remove and Replace).
17. Remove the nut that attaches the 12V battery rear hook tie down.
18. Remove the wiper motor assembly. See Wiper Motor (Remove and Replace).

19. Remove the bolt that attaches the thermal harness cover to the front body controller module, and then remove the cover from the module.

20. Disconnect the thermal harness from the front body controller module connector.

21. Release the clip that attaches the suction/liquid lines to the body near the TXV, and then move the electrical harness aside to gain access to the front body controller module.

22. Remove the bolts that attach the front body controller module cover to the front body controller module, and then remove the cover.

23. Disconnect the main front harness from the front body controller module connectors.

24. Remove and discard the nuts (x6) and bolt that attach the power and ground cables to the front body controller module.

25. Remove the bolts that attach the front body controller module to the body.

26. Release the clips that attach the bottom of the front body controller module to the body, and then remove the lower busbar from the stud.

27. Remove the bolt that attaches the ground strap to the upper rear of the front body controller module, and then remove the ground strap from the module.

28. Remove the bolt that attaches the ground strap to the lower right side of the front body controller module, and then remove the ground strap from the module.

29. Remove the bolt that attaches the ground strap to the lower rear of the front body controller module, and then remove the module from the vehicle.
30. Remove the 12V battery bracket. See Bracket - 12V Battery (RWD) (Remove and Replace).

31. Release the clips that attach the HVAC plenum outer duct to the HVAC plenum inner duct, and then remove the outer duct.

32. Remove the fasteners that attach the HVAC plenum inner duct to the body, and then remove the inner duct from the vehicle.

33. Disconnect the electrical harness from the RH body controller module connector.

34. Remove and discard the nuts (x2) that attach the power cables of the electrical harness to the RH body controller module, and remove the power cables from the module.

35. Remove and discard the nut that attaches the RH body controller module to the A-pillar, and lower the module for access.

36. Release the clip that attaches the inline electrical harness connector to the RH body controller module, and then disconnect the electrical connector.

37. Release the clips that attach the electrical harness to the car computer.

38. Disconnect the electrical harness from the car computer connectors (x7).
39. Push the RH side of the electrical harness out through the bulkhead.

40. Disconnect the electrical harness from the LH body controller module connector.

41. Remove and discard the nut that attaches the power cable of the electrical harness to the LH body controller module, and remove the power cable from the module.

42. Release the clip that attaches the inline electrical harness connector X909 to the LH body controller module, and then disconnect the electrical connector.
43. Push the LH side of the electrical harness out through the bulkhead.

44. Release the clip that attaches the electrical harness to the body in the brake booster area.

45. Disconnect the electrical harness from the connectors (x3) in the brake booster area.

46. Disconnect the electrical harness from the brake booster connector.

47. Disconnect the electrical harness from the ABS unit connector.

48. Release the clips that attach the electrical harness to the body in the front LH frame rail area.

49. Remove and discard the bolts (x4) that attach the electrical harness ground terminals to the body in the front LH frame rail area.

50. Disconnect the electrical harness from the steering rack connectors and connectors in the front LH frame rail area.

51. Disconnect the electrical harness from the LH headlight connector.

52. Release the clips that attach the electrical harness to the body in the HVAC plenum duct area.

53. Disconnect the electrical harness from the TXV connector.

54. Remove the bolt that attaches the electrical harness ground terminal to the body in the TXV area

55. Release the clips that attach the electrical harness to the body in the front RH frame rail area.

56. Remove and discard the bolt that attaches the electrical harness ground terminal to the body in the front RH frame rail area.

57. Release the clips that attach the electrical harness to the body in the RH headlight area.

58. Disconnect the electrical harness from the RH headlight connector.
59. Partially close all doors.
60. Remove the wheel chocks.
61. With an assistant, move the vehicle to a lift.

Caution:

The vehicle is safely pushed for only a very short distance and at a very slow speed.

62. Remove the front LH and front RH wheels. See Wheel (Remove and Install).
63. Remove the front LH and front RH arch liners. See Wheel Arch Liner - Front - LH (Remove and Replace).

64. Disconnect the electrical harness from the connectors in the front RH fascia area.

65. Release the clips that attach the electrical harness to the body at the front of the front RH wheel liner area.

66. Disconnect the electrical harness from the connector at the front of the front RH wheel liner area.

67. Release the clips that attach the electrical harness to the body at the rear of the front RH wheel liner area.

68. Disconnect the electrical harness from the front RH side repeater lamp connector.

69. Disconnect the electrical harness from the connectors in the front LH fascia area.

70. Disconnect the electrical harness from the front end module connector.

71. Release the clips that attach the electrical harness to the body in the front LH wheel liner area.

72. Disconnect the electrical harness from the connectors at the front of the front LH wheel liner area.

73. Release the clips that attach the electrical harness to the body in the front LH wheel area.

74. Disconnect the electrical harness from the front LH side repeater lamp connector.
75. Lower the vehicle

76. Release the clips that attach the electrical harness to the body in the front RH frame area.

77. Release the clips that attach the electrical harness to the body in the bulkhead area.

78. Disconnect the electrical harness from the connectors in the bulkhead area.

79. Release the clips that attach the electrical harness to the body in the LH frame rail area.
80. Route the LH side of the electrical harness from the wheel liner, through the underhood storage unit area, and to the front body controller module area.
81. Route the RH side of the electrical harness from the wheel liner, through the underhood storage unit area, and to the front body controller module area.
82. Remove the electrical harness from the vehicle.

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