2003 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Transmission Revolution Sensor: Replacement

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE TRANSMISSION REVOLUTION SENSOR (NC0 SENSOR) 
    1. Disconnect the transmission revolution sensor connector.
    2. Remove the bolt and transmission revolution sensor.
    3. Remove the O-ring from the transmission revolution sensor.
      Fig 1: Disconnecting Transmission Revolution Sensor Connector
      G01028848Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE TRANSMISSION REVOLUTION SENSOR (SP2 SENSOR) 
    1. Disconnect the transmission revolution sensor connector.
    2. Remove the bolt and transmission revolution sensor.
    3. Remove the O-ring from the transmission revolution sensor.
      Fig 2: Disconnecting Transmission Revolution Sensor Connector
      G01028849Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL TRANSMISSION REVOLUTION SENSOR (SP2 SENSOR) 
    1. Coat a new O-ring with ATF and install it to the transmission revolution sensor.
    2. Install the transmission revolution sensor with the bolt.

      Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 

    3. Connect the transmission revolution sensor connector.
      Fig 3: Connecting Transmission Revolution Sensor Connector
      G01028850Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL TRANSMISSION REVOLUTION SENSOR (NC0 SENSOR) 
    1. Coat a new O-ring with ATF and install it to the transmission revolution sensor.
    2. Install the transmission revolution sensor with the bolt.

      Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 

    3. Connect the transmission revolution sensor connector.
      Fig 4: Installing Transmission Revolution Sensor With Bolt
      G01028851Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.