2007 Lexus RX 400h FWDFACTORY OEM SERVICE PROCEDURE

Front Speed Sensor: Inspection

  1. INSPECT FRONT SPEED SENSOR 
    1. Inspect the front speed sensor. If any of the following occurs, replace the front speed sensor with a new one:
      • The surface of the front speed sensor is cracked, dented, or chipped off.
      • The connector or wire harness is scratched, cracked, or damaged.
      • The front speed sensor has been dropped.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 1: Inspecting Front Speed Sensor
      G05202688Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

      Resistance 

      LH 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      2 (FL+) - 1 (FL-) 1.4 to 1.8 kΩ

      RH 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition
      2 (FR+) -1 (FR-) 1.4 to 1.8 kΩ
    3. Measure the resistance according to the value(s) in the table below.

    Resistance 

    LH 

    TESTER CONNECTION SPECIFIED CONDITION CHART

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

    RH 

    TESTER CONNECTION SPECIFIED CONDITION CHART

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