2000 Blazer 4x4 keeps blowing #15 fuse, when this happens shift indicator goes out as well as fuel and temp. Low fuel, battery and service 4wd light come on and 4wd push buttons go off. Any help would be appreciated!

 

Sounds like a short in the system. I'll have to take a look and see what the #15 fuse is after work, as I don't remember off the top of my head. You you own a digital multimeter? And a Haynes or Chilton manual with instruction on disassembling your dash would be a good idea. You're probably going to have to trace some wired to isolate the fault.

 

The # 15 fuse is 4wd switch, engine controls (vcm, pcm, transmission)
I will go get a Haynes and a multimeter right now!

 

Funny how my proofreading falls off when I'm typing an answer on the phone while I'm on the can (I like to multitask).
Fluke makes the best DMM, but I used a $30-something one I bought at Wal Mart for several years, and it worked fine. I still use it when I do work on my own vehicle (the Fluke stays in the shop).
I have the Haynes book. It works for me. I also have a factory repair manual. Which is a better fit for you depends on where you're at as far as mechanical ability goes and the extent to which you'll do your own work. The Haynes guide also gives a comprehensive list of tools which you'll need to perform the repairs and parts changes shown in the book. How much you spend on tools.. well, base that on what the tool is and how heavily it'll be used. A lot of it, you can do fine buying it at Harbor Freight. Some of the tools, I'd recommend you buy elsewhere, though.
Some of the applications also call for shop air... if you don't have this available, you may want to look and see if you have any DIY garages in your hometown. Typically, they'll have air, and can also dispose of oils and other fluids.

 

I appreciate the help and I'm impressed on how fast you replied but I'm pretty sure I have it fixed. I noticed the same corrosion on the same pins on my new and old TCCM so I thoroughly cleaned and applied di electric grease and it seems to be working. Fuse hasn't blown and it shifts through the gears when I'm in neutral. Again I appreciate the quick reply and I hope this helps someone else

 

Good deal. That saved you a bit of hassle.

 

sorry to revive this older thread. But which wire did it end up being that was corroded? I have this same issue and i don't want to dig around to find it. do you have any direction on where this issue was for you? Thanks!