i think he is talking about the gear indicator light. which all you need to do is splice in the 4 wires that go from the PNP connector on the range switch (located on the side of the trans) to the pcm. there are several threads about this on the forum. if you cut your wires from the old harness on accident like i did then you need to find them and splice them in. i just did a writeup about this explaining how to find them not long ago and its only a few posts down in the electical section...... all you need to do is search a little...... but ill give you the link anyway.
http://www.ls1truck.com/forums/elect...bs-trucks.html
this is for autos which i assume you have since you didnt mention. if you have a manual, idk how the range switch works on those and you will have to figure that one out on your own. but i assume its similar if not identical.
congrats on getting your cruise figured out.
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