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Home >> Nissan-Datsun >> 1993 >> Sentra SE-R, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.0L >> Diagnostic Trouble Code (DTC) Tests >> DTC 14: Vehicle Speed Sensor (VSS)
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DTC 14: Vehicle Speed Sensor (VSS)

  1. Check Speedometer Operation  - VSS is built into speedometer. Ensure speedometer operates properly. If speedometer operates properly, go to next step. If speedometer does not operate properly, remove VSS from transaxle. Set voltmeter on AC scale. Connect voltmeter to VSS connector terminals. Turn VSS pinion gear. Voltage should be approximately 0.5 volt. If voltage is not correct, replace vehicle speed sensor. If voltage is correct, go to next step.
  2. Check Input Signal Circuit  - Turn ignition off. Disconnect ECM and combination meter wiring harness connector. Check harness continuity between ECM terminal No. 32 and following combination meter terminals. See Figure and Fig 1 .
    • Terminal "c" (Yellow/Green wire) on models with digital instrument
    • Terminal "j" (Yellow/Green wire) on models with analog instrument

    If continuity is present, check ECM pin terminals and connector and repair as necessary. If continuity is not present, repair wiring harness or connectors as necessary and perform FINAL CHECK  in this article.

Fig 1: DTC 14, Checking Input Signal Circuit
G93J80928Courtesy of NISSAN MOTOR CO., U.S.A.