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Home >> Nissan-Datsun >> 1993 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Panel - Analog >> Testing >> Speed Sensor

Speed Sensor

  1. Remove speed sensor from transmission. See Fig 1 . Turn speedometer pinion quickly and measure AC voltage across sensor terminals. If voltage does not toggle at about .5 volt AC, replace speed sensor.
  2. Turn ignition on. Spin speed sensor. If .5 volt AC is present, replace speedometer instrument. If .5 volt AC is not present, check continuity of related circuits and speed sensor. Repair as necessary.
CAUTION: Ensure pinion shaft is properly seated when installing speed sensor. Speed sensor thrusting key should fit into groove of pinion shaft.
Fig 1: Testing Vehicle Speed Sensor
G91A00802Courtesy of NISSAN MOTOR CO., U.S.A.
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