I have a 1994 Chevy Blazer 4 door it saids Tahoe LT however I believe it is considered the S10.

Similar Blazer for reference
http://www.chavisauto.com/images/199...t%20Blazer.jpg

None of my power door locks work. I read that the circuit for my rear window defroster is off of the door locks for this vehicle which also does not work.
I checked voltage at the driver door and there is voltage.
I thought that I would try hooking up my remote start door lock/unlock to it however that also does not work.

First what is the correct wiring for this year blazer? Is it a 3-wire Positive?

Secondly any help with troubleshoot the power door locks would be greatly appreciated. Such as where is the Relay for the power locks? I read somewhere it is behind the headlight switch I checked but nothing there. Also there is a solenoid i hear click when I push to the power side which is located under my center console. I opened it and that portion of the circuit is working.

 

First off that is in fact an s-10 Blazer Tahoe LT is jut the designation for the trim package up to 94 (I have the same truck)
When you tried hooking up remote lock/unlock did you program the remote(s) or just plug in and hit button? just trying to eliminate possible problems.
Relay for the door locks is under the dash mounted on the column support housing on passenger side of the steering column.
as for 3 wire ground or what not i'm not positive there so i'll leave that one to one of the wiring gurus to answer.