[NextNewell]

After reading the posts about the SilverLeaf on this forum, I finally got the program.  I elected to get the 6 plug/ 4 wire without the adapter thinking I'd just hard wire it, but I found the coach diagnostic plug has 7 wires - any guess what the additional 3 do?

[folivier]

This is from Silverleaf and may help:

[NextNewell]

This is from Silverleaf and may help:

Thanks, but that's basically a generic diagram which unfortunately doesn't help identify the extra wires or those with numbers clearly stamped.  But I guess it doesn't matter since they only use four wires anyway.

[ccjohnson]

I think the others are for proprietary DD diagnostics. Possibly to write to the ECM. But not 100% sure on that.

[Chester Stone]

My advise is to buy the plug rather than hard wire. If you keep the existing port then a Detroit Engine Analysis Computer can be connected if needed in the future.

[Richard]

You can use the crimp on wire taps and have the best of
Both

[encantotom]

i did what richard did. permanent for me and still have the plug accessable

tom

[MrE]

You could check with Silverleaf to make sure it works, but you can use a $5 plugin connector to connect ODB2 and connect to your PC with WiFi or bluetooth.
GM 12 Pin To OBD1 OBD2 16 Pin Diagnostic Tool Cable Connector Adapter

[encantotom]

since DDEC is detroits proprietary interface it wont work at all with obd2 or any other interface.

thats what i think anyway

tom

[NextNewell]

Well I finally finished installing the Silverleaf system and I have it connected to a 10" ToteVision Tablet. This Tablet is pretty cool in that it has SSD with Windows 7 and it also has a 3G sim card slot to enable an internet connection from AT&T, Verizon, Sprit, etc. I'm still sorting out what information I can and can't get, but even with what I do get, it's so much more than the dash gauges.