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ABS Control unit failure or ABS relay? 850 1994

posted by  stkelly on  Fri May 22 19:02 CST 2009
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last visit: Fri Aug 31 18:55 CST 2012
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On my 94 850 Turbo with 205K miles the ABS light came on the other day. Checked the codes in A3 and got 4-4-4, 2-1-3, 2-1-4, 1-4-1, and 1-4-2. I cleard the codes the ABS worked for about 20 mintues and the light came on again. Now I reliable get 4-4-4. I've reset 4-4-4 a few times and it immediately comes back on restart. I checked the pedal position sensor using my ohm meter and it looks good so I don't think that's the problem.
Given all of this does it sound like the ABS control unit or the ABS relay has gone south? Or at this point is it a toss up and should just try the relay first since it's cheaper?

As always any advice is greatly appreciated!

Thanks in advance!
--
Scott K - 1994 850 Turbo






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New ABS Control unit failure or ABS relay? [850][1994]
posted by  stkelly  on Fri May 22 19:02 CST 2009 >


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