Tesla Model 3 Owners & Service Manuals

Tesla Model 3: Sensor - Rear Motor - Speed (Remove and Replace)

Tesla Model 3 2017-2025 Service Manual / Rear Drive Unit / Rear Motor / Sensor - Rear Motor - Speed (Remove and Replace)

 Sensor - Rear Motor - Speed (Remove and Replace)

Special tool required for this procedure:

  • 1451839-00-A SKT, EP10 LOW PROFILE
  • 1115031-00-A EXT, WOBBLE, 1/4" DR, 1.25"

Remove

  1. Drain the oil from the rear drive unit. See Gearbox Fluid - Rear Drive Unit (Drain and Refill).

  Sensor - Rear Motor - Speed (Remove and Replace)

  1. Disconnect the electrical harness from the resolver connector.

  Sensor - Rear Motor - Speed (Remove and Replace)

  1. Release the clips that attach the harness to the rear drive unit.

  Sensor - Rear Motor - Speed (Remove and Replace)

Use the low profile EP10 inverted socket (1451839-00-A) with the 1/4-inch drive wobble extension (1115031-00-A) to remove the lower bolt.

  Sensor - Rear Motor - Speed (Remove and Replace)

Note: The resolver is spring-loaded and might move during bolt removal.

  1. Remove the bolts that attach the resolver to the drive unit (1451839-00-A SKT, EP10 LOW PROFILE).

Install

Installation procedure is the reverse of removal, except for the following:
  • Install a new resolver gasket if none is supplied with the resolver.
  • Install a new oil filter and refill the rear drive unit with oil. See Gearbox Fluid - Rear Drive Unit (Drain and Refill).

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