2008 Lexus RX 350 AWDFACTORY OEM SERVICE PROCEDURE

Front Speed Sensor: Inspection

  1. INSPECT FRONT SPEED SENSOR 
    1. Make sure that there is no looseness at the connectors' locking part and connecting part of connector.
      Fig 1: Locating Speed Sensor Front Bolt
      G05241736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the speed sensor connector.
    3. Measure the resistance according to the value(s) in the table below.

      Resistance: 

      LH 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      S2-2 (FL+) - S2-1 (FL-) 0.6 to 2.5 kΩ

      RH 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      S3-2 (FR+) - S3-1 (FR-) 0.6 to 2.5 kΩ
      Fig 2: Identifying Front Speed Sensor Connector
      G05272797Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Measure the resistance according to the value(s) in the table below.

      Resistance: 

      LH 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      S2-2 (FL+) - Body ground 10 kΩ or higher
      S2-1 (FL-) - Body ground 10 kΩ or higher

      RH 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition
      S3-2 (FR+) - Body ground 10 kΩ or higher
      S3-1 (FR-) - Body ground 10 kΩ or higher
      NOTE: Check the speed sensor signal after replacement (See TEST MODE PROCEDURE  ).
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.