Corvette 1997-2005

Vehicle Speed Sensor

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Operation



The VSS supplies vehicle speed information to the PCM.

Removal & Installation



  1. Raise and suitably support the vehicle.
  2.  
  3. Clean any dirt from around the Vehicle Speed Sensor (VSS).
  4.  
  5. Disconnect the electrical connector from the VSS.
  6.  
  7. Remove the bolt retaining the VSS to the rear differential case.
  8.  
  9. Remove the VSS from the differential case.
  10.  
  11. Installation is the reverse of removal. Tighten the vehicle speed sensor retaining bolt to 89 inch lbs. (10 Nm).

    Click image to see an enlarged view

    Fig. VSS mounting

  12.  

Testing



  1. Remove the VSS.
  2.  
  3. Connect a digital multimeter set to the 0 to 1 AC volt scale to the terminals.
  4.  
  5. Pass a flat steel object across the tip of the sensor repeatedly.
  6.  
  7. The digital multimeter should indicate voltage each time the steel object passes the tip of the sensor. If not, replace the sensor.
  8.  

 
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