I have a '91 s15 jimmy, 4.3 L., 5 speed manual, with a non-working speedometer and odometer that I am trying to troubleshoot. A friend of mine who works at a local auto parts store let me try a new vss, but it didn't fix the problem. I want to test the drac with my volt/ohm meter, but I am not sure of what the normal input/output voltages should be. Does anybody have any experience in testing dracs or know of any websites that provide info on testing them? I know how to test the vss voltage output, but I need info on testing the drac. Thanks in advance for any info!!!

 

When you find out lmk :\ Mines screwed up too lol