VSS from Speedo to ECM or DRAC/VSSB 4L60E

[EagleMark]

DRAC on C3 ECM and VSSB on C4 PCM.

Start a thread, good topic although we haave talked about it I don't think we ever walked through the process. I think I have all the information needed to do this and can tell you why there is some serious issues with writeups on internet with use of DIP switches...

[93V8S10]

some serious issues with writeups on internet with use of DIP switches...

If your talking about the on-line calculator one I think your talking about, I've got a correction list around here somewhere.

[EagleMark]

Actually we have GM docs of correct locations for jumpers and speeds etc... what I was referring to was using a dip switch recommended does not work, it burns up, I have tried to find one that will handle current but unsuccessful.

[93V8S10]

Mine has been working fine with dip switch now for about 5 years.

I'll stop now, until we get a new thread going.

[EagleMark]

See you proved me wrong. Where did you get the dip switch? I tried three differant brands, they all fried?

No need to stop now, I can split the thread.

[93V8S10]

Got it from a local electronics suppler, came two to a package. I should have the other one around here somewhere, I'll let you know the brand when I find it. Also, mine is the small DRAC used with S/T, not the larger one used with full size. Don't know if that matters, but might make a difference.

[EagleMark]

Wire size on DRAC (what you use) and VSSB are same size. I have burned up dip switches on both. So really interested in one you have. I ended up doing the calculations and soldering in wire/wires in jumpers.

[droptopstng]

Hey Mark If i may say this a company called classic instruments makes a piece to screw on where the cable goes that produces correct output for those swapping from mech to ele speedos....we have had 8 or 10 customers bring them to us to install in the past few years I would call them.....this was meant for the op of this btw.....and about the dip switch thing I need to know because my bosses truck I just soldered in jumpers but it took an hour or so so some dips would have been nice.We got his within 3 percent I think, we did it like a year ago.

[93V8S10]

Fount it!

The parts are made by Jim-Pak Electronic Components, located in Belmont, CA 94002. I solder the 16MLPJP 16 pin low profile machine tooled IC socket to the board then plugged in a 206-8 8 position DIP switch (both with two legs removed).