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Discussion in 'The Garage' started by CK5, Oct 16, 2005.
In the wiring of my 90 Blazer I have a modual or something labeled "AGK", anyone know it's purpose?
How many wires and where was it located?
IIRC, is it white and located under the dash near the steering column? if yes, it is the DRAc, and you need it for your speedo to work
yep, that sounds like it, I don't have a speedo anymore but wonder if I need it in the future if I get a aftermarket speedo?
you might want to keep it if you have kept the fuel injection so the computer knows vhecial speed.
ABS, Cruise and ECM all work off of the DRAC, along with the speedometer of course.
It will output 2000 or 4000PPM for speedometer drive, so if the aftermarket speedo you are looking at needs either of those, you should be good.
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