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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.

      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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