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Test Dr1 - Speed Sensor Circuit (Code 15)

NOTE: Vehicle must have been driven or fault code is not valid.
  1. Turn ignition off. Disconnect White connector from logic module. Disconnect speed sensor connector. Connect an ohmmeter between cavity No. 2 of White connector and Black wire of speed sensor harness connector. If ohmmeter reads continuity, go to step 2). If ohmmeter does not read continuity, repair wire for an open circuit to wiring harness splice.
  2. Connect ohmmeter between cavity No. 12 of White connector and White/Orange wire of speed sensor. If ohmmeter reads continuity, go to step 3). If ohmmeter does not read continuity, repair wire in cavity No. 12 for an open circuit to speed sensor.
  3. Connect ohmmeter between White/Orange wire of speed sensor and ground. If ohmmeter reads an open circuit, go to step 4). If ohmmeter reads continuity, repair wire of speed sensor for a short to ground.
  4. Remove cables from speed sensor. Connect ohmmeter between speed sensor terminals. Rotate speed sensor drive shaft with fingers. If ohmmeter shows pulsations as speed sensor drive shaft is rotating, ensure drive cables are functioning properly. If ohmmeter does not show pulsations, replace speed sensor.
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