P0717 BUICK – Input/Turbine Speed Sensor Circuit No Signal

 

P0717: DIY Repairing Video Tutorial

https://youtu.be/5m-DXtDNNMk

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0717 BUICK Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Possible shifting problems  

P0717 BUICK Possible Causes

  Faulty Transmission Speed Sensor,Transmission Speed Sensor harness is open or shorted,Transmission Speed Sensor circuit poor electrical connection  

P0717 BUICK Description

  The Input Speed Sensor (ISS) is a hall-effect type sensor. The ISS mounts to the control valve upper body assembly and connects to the control solenoid (w/body and TCM) valve assembly through a wire harness and connector. The sensor faces the 1-2-3-4 and 3-5-R clutch housing machined teeth surface. The sensor receives 8.3-9.3 volts on the Input/Output Speed Sensor (ISS/OSS) supply voltage circuit from the Transmission Control Module (TCM). As the 1-2-3-4 and 3-5-R clutch housing rotates, the sensor produces a signal frequency based on the machined surface of the 1-2-3-4 and 3-5-R clutch housing. This signal is transmitted through the ISS signal circuit to the control solenoid (w/body and TCM) valve assembly. The control solenoid (w/body and TCM) valve assembly uses the ISS signal to determine line pressure, transmission shift patterns, Torque Converter Clutch (TCC) slip speed and gear ratio.