P1791

2003 SATURN VUE
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SCHILS1
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Transmission problem 6 cyl All Wheel Drive Automatic

Transmission Control Module Loop code? Is this a relay problem or a sensor problem and how do I repair it?
Jul 2, 2009 at 4:24 PM
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BRIAN 1
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The instrument panel/body inline connector,located behind the left hinge pillar garnish molding, may have bent or corroded terminals.


https://www.2carpros.com/forum/automotive_pictures/147643_connector_1.jpg

check this first,and post back with what you find.
Jul 2, 2009 at 5:57 PM
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ANDREW03
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Where is this?
Nov 10, 2017 at 9:51 AM
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STRAILER
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This code is for the transmission input and output speed sensors. Here is a video that show the speed sensors being done.

https://youtu.be/f3bETtCIdxM

Different car but you get the idea.

You can run the codes by follow this guide.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is how you do it on your car. (below)

Please let us know what happens.

Cheers, Ken
Nov 13, 2017 at 1:40 PM