Problems with ABS and diff-lock!

[lassel]

Greetings!

Well, I'm new here, and from Norway, so my english might not be very good, but here goes:

Got some issues with my -93 s2 aby, most likely electrical, which i am a total noob at.
The ABS light is allways on in the dash, so the ABS is disengaged, and there is no lights in the diff-lock button..

I've done some measuring with a instrument and it seems the blue and black wire has no power.. Checked the fuse, and its ok, and measured at the fuse contact and there is 12v there.

However, when i start her up and measure at the blue contact underneath the dash it shows zero volts, so as i see it the problem is between the fuse and the blue contact somewhere, but its just a ton of wires there and not easy for me to figure out, hehe

Anyone got any ideas what i should do here? As i said I'm not very good with electrical stuff, so i might not understand technical words and stuff

-Lasse

[rs200]

did your ABS works fine? go and try it..
diff lock can have problem if there is some vacum leak . check all pipes (black/blue and black/yellow)
if there is not light on diff lock button. check the bulbs inside (I have 3 of them and all have broken bulbs-LED light is better)

[lassel]

Nope, the ABS does not function when i brake hard, checked for vacum leaks, no leaks, snd the non-return valve is functioning.. checked the bulbs, i forgot to mention that the Diff does not lock either, even had it at a vag dealership and they told me it was a electric problem with the black and blue wire, could it be a relay ?

[Al Wyn]

Lasse i have a good ABS ecu and diff control unit here if you need pm me

[lassel]

Problem solved!

After storing the Audi about a year ago i lost the keys, and when i fired it up again after disabling the key-log thingie I could not remember if i had the problems before i stored it -_-
Anyway.. The key-log thingie was hooked up to the same fuse as the ABS/Diff-lock ;D

Thanks for the input anyway!