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Vehicle Speed Sensor

WARNING: This page is about a different car, the 2003 Lexus IS 300 and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the positive (+) lead from the battery to terminal No. 1 and negative (-) lead to terminal No. 2. See CONNECTOR IDENTIFICATION .
  2. Connect the positive (+) lead from the tester to terminal No. 3 and negative (-) lead to terminal No. 2. Rotate the shaft.
  3. Check that there is a voltage change from approximately 0 volt to 11 volts or more between terminals No. 2 and 3. The voltage change should be 4 times for every revolution of the speed sensor shaft.
  4. If operation is not as specified, replace the sensor. See VEHICLE SPEED SENSOR under ENGINE SENSORS & SWITCHES in appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE.
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