so if you have read my post on abs light on no speedo.......here are the codes auto zone pulled today, two of them said speed sensor malfuntion, idle speed sensor, and knock sensor


please help me digest these and what they mean in relation to my problem and possible slabs unit failing

P1592
P0327
P0500
P0102

when these were read, the abs light and check engine light were on, although the other two amigos and the hill descent function ON green light also come on......with my hill descent not working at all, wehn i press the button nothing......speedo is out, odom......clicking with the brake pedel when things are flashing

 

Other then the 1592, none of these are ABS fault codes, need a lot better scanner to get those.

 

i guess they dont help much to figure out my problem then, I will have to bite the bullet and head to the dealer to have the truck looked at. I want them to just look over the whole car and create a laundry list of what needs done. even if its 2 hours of labor, at 95 bucks each, at least i will have a baseline to start with. I am mechanically inclined, so I will just start with the most important and repair the items myself, even if it requires used parts that arent cheap such as a slabs unit, wheel sensors, the abs mod switch kit etc. Thanks to mike i fixed my power steering problems in an hours time for under 20 bucks!

 

Don't use the dealer, he may reqad the codes but few if any will clear them afterwards to see what may come back.
Find a shop that has a laptop type scanner like and AutoLogic, that can read the codes. Most of the smaller shops will work with you.
Do your brakes squeak? If you throw a panic stop above 30 MPH on a loose surface, do you feel your brakes pulsate?