Abs/bake/VDC/antiskid warning
 

I just put in a new LSD and driving home from shop, I got a dash full of warning lights.
ABS/VDC/anti skid/and "BRAKE" all came on at once.

I suspect the antilock brake sensor may have malfunctioned... Any ideas?

The sensors might have been damaged during the install. They are pretty delicate & expensive

check your brake fluid level. it needs to be almost over the max line, or all three of those lights will come on.

:iagree:

Which LSD? Were different stubs used and if so did they have the ABS ring?

Yes ABS ring (Quaife from Z1)
Ill check my brake fluid. Thanks!

Attachment 64585You can see both rings I think in this pic.

I just installed new tires and all those lights came on as well.

Topped off brake fluid and after second start we are good to go. Thanks for the input!

Is there any specific brake fluid we should use, just checked the level and it right in the middle between low n max? Mine seems to come on while I'm driving above 50mph.

I vaguely remember someone posting about having to reset something to do with traction control/ABS/VDC after changing to tires with different-from-OEM diameter/circumference on one end. If you can't find it using search, let me know and I'll see if I can find it.

Edit: Or one of the wheel sensors may be out of alignment. You may have knocked it out of alignment when changing the tires.

Ok thanks ark car seems only seems to come on during highway driving , but in the city its fine. I just installed two new 285/40/18 in the rear with 235/40/18 in the front . Is there anyway to check /see is the sensor out of alignment?

I'm sure there is a way to check, but I don't know what it is. You should be able to find more than one thread/comment that will explain it. If not, check the FSM (see link in my sig).

I stopped by performance shop anyhow after adding fluid fixed my issue to check for proper sensor alignment. (I used a NISMO diff cover so figured ABS sensor alignment should be right which it was)

They hooked up a code reader to check if my lights were caused by fluid or by sensor error. So. Yes you can check your lights with a code reader

Also as a note of general info, my lights (pictured above) came on ABOVE the "cold max" line (halfway to the "warm max" fill line). Well above the min line. I think these levels are marked in a misleading way as the systems SHOULD work as long as you are above "MIN"

I'm sorry I forgot to snap a photo before I filled/fixed it.

Well topped off the brake fluid , drove around with vdc off and no problem. As soon as I leave vdc on brake abs traction indicators come on.

GOOD GOD SIR! Your ABS light is on beause the diameter between the front and rear are WAY WAY WAY WAY OFF! Oem diameter is 26.9" for the front and 26.7" for the rear. Your new setup is 25.7" for the front and 27" for the rear. Your front's are rotating 40 times more per miles making your ABS and slip basically thinking you are slipping. You should be running like a 255/45 on the front which is identical to OEM diameter. Basically your tire set up is WAY too small on front and only slightly bigger on the rear compared to oem. No way to reset those lights until the front and rear tires diameters get closer to each other.

Thanks Chris this is all new to Me wish I had picked the right set of tires. This is going to set me back. And sorry about not getting back to you trying deal with this problem. I appreciate your knowledge!

i wonder if you can reprogram the abs/vdc for different size tires?

No need to apologize. Glad I could help you out! :tiphat:

Glad it was simple

Well found a slightly used set of nitto nt555 255/45/18 with 90% tread left for $200. Will this put everything back into line and will this be ok up front with a 18x9.5+22?

You'll be fine. I'm running 255/45 +20.

Xmas treed again driving around Denver!!

Turns out the $500 master cylinder has a float which sometimes doesn't float.

Fix is to open the master fill cap, jiggle the float and you are good. Crap part!