Engine not cranking over?

Okay, I checked to see if the reverse lights were coming on and they are now. This range sensor is the neutral safety switch, the first thing I attempted to replace but from the diagrams u sent, I don't think I did it correctly. It's kind of hard to read that diagram and understand exactly what I did or didn't do. Also, you said the dark green wire should be hot when in park. Are you talking about at the end port?

I'm sorry that meant to say the reverse lights are not coming on.

So, I went and bought a brand new NSS and installed it correctly but with no changes. I'm wondering what else would be the cause of the gear indcater not working and why still have no communication with anything I plug into the obd port. Is there a way I can just bypass this NSS altogether? I know it's not ideal and not the safest thing to do, but no one else will be driving my truck and I don't plan on selling it or anything so if I could just get it back drive able then I could focus on fixing it or anything else for that matter. Unless you have something else better that you think could be the culprit.

I'm going to do each step again I had my brother helping me last go round so I'm going to double check those things first try soon. Thanks for being patient with me!

Okay, so, right off I found that the 10A crank fuse is not getting any reading with the key on. I took the fuse out and it's hot on one side, but I put a new fuse in, and that same side isn't hot neither is.

Yes, all the other fuses were getting power.

Also, I have replaced the ignition switch already as well.

The red wire is only getting a reading of 5 v.

Okay, my mistake. Yes, the fuse and the red wire are both getting 12 V.

Also, the security light is now flashing again. I tried to reset the security and tried the relearn process twice.

Not sure if I missed your response or not but do u know if I can just bypass the NSS altogether or do u have any other ideas?

Yes they both have 12v +