Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2012 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Speed Sensor: Removal: Removal

REMOVE NO. 2 ENGINE UNDER COVER
REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY See step 2
DRAIN AUTOMATIC TRANSMISSION FLUID See step 3
REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY See step 4
REMOVE VALVE BODY OIL STRAINER ASSEMBLY See step 5
REMOVE TRANSMISSION VALVE BODY ASSEMBLY See step 6
REMOVE SPEED SENSOR NT
1. Disconnect the sensor connector.
  
  Fig 1: Locating Speed Sensor NT
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a T30 "TORX" wrench, remove the bolt and speed sensor from the oil pump.
3. Remove the O-ring from the speed sensor.
REMOVE SPEED SENSOR NC3
1. Disconnect the sensor connector.
  
  Fig 2: Locating Speed Sensor NC3 And Bolt
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the bolt and speed sensor from the transmission case.
REMOVE SPEED SENSOR SP2
1. Disconnect the sensor connector.
  
  Fig 3: Locating Speed Sensor SP2 With Bolt
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the bolt and speed sensor from the transmission case.

Factory Service Tools

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When to See a Mechanic

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.

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