Re: Got Diacom to work on Snakeskinner

[Shannen Durphey <shannen@grolen.com>]

Daniel Ciobota wrote:
> 
> Good work John, I'm glad you got it to work.  On my end, we were having
> some technical difficulties last night.  The connector is indeed the
> standard aldl connector, with the data line as the regular M terminal
> (my 89 was E for some obscure reason).  I had trouble rearanging the
> pins and making good contact... I definitely need to get one of those
> adapters.  John said he'll take my connector to work and see if he can
> doctor it up where it will work.
> 
> Anyways, John had an upgraded tech2 tool (89-00, he said) and we tried
> to hook that one up to the zr1, but the screen remained completely
> blank, the tool wouldn't even turn on.  It's supposed to be powered
> through the DLC.  As a test, we went and plugged it into the 96 GS he
> has (yeah, he has a lot of expensive toys) and it worked perfect.  He's
> wondering what's going on with that, and so am I.  Anyone have any
> ideas?
> 
> Daniel
Yes, the aldl connector is not wired to power a scan tool.  You need
an external power cable.  Also, GM was not planning on supporting many
earlier model cars with the Tech 2, so it may not have full support
for the Vette.  (If it does, please pass that along).  Also, the
serial data in MY 89 is routed to pin E of the ALDL.  I *think* this
is the same for F cars, and that there are several years like this. 
When using a Tech 1 or CAMS, these cars require a special adapter to
the ALDL.  At home, some short wires and appropriate terminals will do
the adapter's job.
Shannen