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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by gotmud?, Apr 30, 2002.
what's it look like and are they a pricey p.i.a. to replace?
Its a black box IIRC, around the gas pedal. Maybe 6x4"? Why do you need to get at it? Those printed circuit boards GM used seem to be real rugged pieces, and its not likely that its failed if thats where you are going with this....I should scan in the service manual section on diagnosis of the cruise control system, its quite good.
It's more likely that you have a vacuum problem. That's easier to check, too.
cruise don't work, stalk is brand new and i was told it's probably the module. think they were just guessing though.
Of course! Easiest thing to do is blame the computer components! : ) I have personally never diagnosed one of these things, but since the Cruise module/harness is almost entirely stand alone (VSS might be shared depending on year) its not going to be too *tough* to diagnose.
Again, never having worked on cruise, are you sure that VSS is still hooked up? I've pulled a dash out and forgot to bolt the VSS "eye" back up to the speedometer head.
If no one else volunteers, if I get a chance tonight, and its not too long, maybe I'll write up the diagnosis procedure for cruise out of a service manual
Hey, I cold use the diagnosis too. Only thing I have is the Haynes manual. The stalk works fine for the washer and lights, so I'm hoping it is just a loose connection.
You Da Man/forums/images/icons/wink.gif
looks like mine was disconnected when the original owner put
another motor in it i would love to get it working since i do alot of highway driving.
heres probably the most pertinent page
http://yeagerd.home.mindspring.com/TablePics/cc1test.gif btw, is the link to the original sized one lol (at least its easy to read for your grandparents)
I'll work on getting the rest of it up, but its frustrating not having much graphics skills, the quality of the scan is better, and I'd like to bring the image size down (your going to have to wait to view those) but I figure it will help some. The connectors usually have the letters on them for the wire (like "F" as the chart mentions) but if not, I'll have to scan in the other pages.
The first link printed out just fine.
I'll get out my continuity checker in the next day or two and give it a go.
<font color=blue>I have the diagnostic flow chart and wiring diagrams from AllData for cruise control. Send me an email if you want me to scan it.
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