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Home >> Geo >> 1991 >> Prizm Base, 4D Hatchback, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - A-240 "E" Series >> Component Testing >> No. 2 Speed Sensor

No. 2 Speed Sensor

  1. Disconnect electrical connector from No. 2 speed sensor, located on transmission. See Figure . Raise and support vehicle so front wheels can rotate. Connect ohmmeter between terminals of No. 2 speed sensor.
  2. Rotate front wheel. Note that ohmmeter needle fluctuates from continuity to no continuity. If reading does not fluctuate correctly, remove No. 2 speed sensor from transmission.
  3. Connect ohmmeter between terminals of No. 2 speed sensor. Note that ohmmeter needle fluctuates from continuity to no continuity when magnet is brought close to speed sensor and then moved away.
  4. Replace speed sensor if reading does not fluctuate. If reading fluctuates correctly, components in transmission for speed sensor must be replaced.