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Cruise control diagnostic?

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Looks like its all in the computer, huh? I was hoping for a disconnected vacuum line like I'm used to :)I have an ABS light on, so I'm guessing there's a dead wheel speed sensor somewhere. I'd like an easy way to find them but I don't have a drb, and Smarty Jr & Edge Insight don't read ABS codes. Is there another software tool that anyone knows of that I could use with a serial OBD II cable?I need to get the truck inspected soon, I'll see if my shop has anything but they're not big enough to waste $ on a DRB.

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  • Author

I'm pretty certain of that - but there are at least 4 speed sensors and I was hoping there was a way to have the ABS computer tell me which was bad without a DRB :)

  • Owner

I wish I had that right now I'm still fighting a ABS/BRAKE light issue. I know like Wild & Free posted a while back that if you replace one sensor in the front you should replace both. Well I replaced the broken one right off and the light reset going out the shop door as soon as I hit the highway and built up speed the light are back on again. Speed sensor mismatch. :doh: I need to get the other sensor... :spend:

  • Author

I found a switch actuated on the return stroke of the clutch pedal that was not being actuated. I was hoping that was the root of my cruise control issue but alas it was not. No difference today after I adjusted that switch to make contact.ABS light is still on, of course.The front sensors retail for about $50ea from Rock, so I'm still hoping that's not it.

There isn't a whole lot to go wrong in the system, the ABS/BRAKE light means you have a loose or bad wheel sensor.. well that's the easiest fix and since cruise won't work I will guess that is the issue. If there is a speed mismatch the cruise things your spinning and won't engage.Are you sure there are 4? I thought it was a 3 channel system, but I could be wrong.

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