GM Full Size Vans 1987-1997 Repair Guide

Vehicle Speed Sensor

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The vehicle speed sensor is mounted in the transmission tail housing.

TESTING



See Figure 1



Click image to see an enlarged view

Fig. Fig. 1: Vehicle speed sensor resistance chart

  1. Disconnect the negative battery cable.
  2.  
  3. Raise the vehicle and support with jackstands.
  4.  
  5. Disconnect the vehicle speed sensor wiring.
  6.  
  7. Measure the resistance of the sensor and compare to the chart.
  8.  
  9. Replace the sensor if the resistance does not meet specification.
  10.  

REMOVAL & INSTALLATION



Refer to the Rear Wheel Speed Sensor procedure in this section.

 
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