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1996 Deville
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35 Posts
Discussion Starter #1
sometimes I get this code (p0717 ) I don't know if the sensor is bad or what its been happening a year. No issues until now. It won't go into 3rd gear. Could my pcm be the issue.

584246


Any help is appreciated
 

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Administrator
2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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69,900 Posts
ISS - Input Speed Sensor - low input. The ISS sends engine rpm input to the PCM for correlation with transmission functions and gear changes.

The sensor is inside the chain drive loop deep inside the transmission. Replacement requires either partial or full removal of the transmission. About 14 hours labor in an equipped shop.

There are extensive descriptions of the sensors and switches in the transmission section of www.alldatadiy.com - an online subscription for your car.

#14 - - -

4T80E solenoids and sensors.gif
 

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Administrator
2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
Joined
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69,900 Posts
From a Google search - ISS is circled -

4t80e chain.jpg
 
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