ABS difficulties....

[metalvolks]

Hey,

I have an 87 325IS and am having the "orange ABS light" problems. (I've had the light on since I bought the car over 2 years ago.)

Well, I've taken the time to take out EVERY ABS wheel sensor and thoroughly cleaned them and the entire hub/gear. Wires looked fine, nothing broken.

I have also replaced the ABS computer with one I got from the junkyard, and the light grey/silver box that sits above it (it does something with the ABS-some relay).

Anyway, light still on. Does the hydraulic unit ever go? that's the last thing I need to replace, but I can't imagine why it wouldn't work. I took the cover off of it and the wires all look tight and good.

Any advise? Is there anything else that would make the ABS fail?

Paul

[jlevie]

There's a good chance that one or more of the wheel speed sensors might be bad. A simple check that might turn up a bad sensor is to compare the resistance of all four sensors. If one is markedly different it would be suspect.

[metalvolks]

I will try that this week.... hopefully its just one of the sensors...Thanks!

I'll let you know how it goes..

Paul

[metalvolks]

Found the problem - it was the fuse/relay that sits on top of the ABS computer.... i have heard almost all e30's ABS fuses blow... especially when you jump a battery or something... I just soldiered in a piece of wire inside the can and fixed it... i know this isn't the correct way, but it works and if I blow my computer its 20-30 bucks at a junkyard, so no biggie.

Paul

[rcko]

what was the part number for the ABS rellay... I just got one for mine and all it does is blow the dash fuse. Either the PO has rigged the wiring for the ABS also, no surprises there... or I bought the wrong thing.