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Front Speed Sensor: Inspection

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
  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.

      Standard resistance: 

      RH 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1 (FR+) - 2 (FR-) Always 1.4 to 1.8 kΩ at 20°C (68°F)
      1 (FR+) - Body ground Always 10 kΩ or higher
      2 (FR-) - Body ground Always 10 kΩ or higher

      LH 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1 (FL+) - 2 (FL-) Always 1.4 to 1.8 kΩ at 20°C (68°F)
      1 (FL+) - Body ground Always 10 kΩ or higher
      2 (FL-) - Body ground Always 10 kΩ or higher
      Fig 1: Measuring Resistance Between Front Speed Sensor Terminal And Ground
      G04978023Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the value is not as specified, replace the front speed sensor.

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