ABS / TCS Inoperative?

[pajeff02]

I performed the first step of the break-in procedure for the Moser 12 bolt this evening. With the car in the air, I ran it in drive and then in reverse for about 3 minutes each. I turned the TCS off as the wheels would simply be spinning free. About a minute or so into the "drive" portion of the break-in, the ABS INOP light triggered.

The new axles have the entire ABS/TCS setup swapped over, including the reluctor rings and everything is plugged in. Would running the car with the rear off the ground cause the system to malfunction? Unfortunately, I do not have a brake code reader so I have no way of diagnosing the cause of the warning lights. Also, the TCS will not re-engage now.

NOTE: I have also installed a line lock and the entire brake system was vacuum bled.

[Spikito]

i have heard of "ABS INOP" problems before, but ive never managed to find an explanation

My last camaro did that everytime I went over 100 and stayed on until i restarted it....never slammed on the breaks to try it or anything

[Cutlass]

It set the light because you ran it on the hoist. It expects to see the front and rear tires moving. It happens to me every time I need to run a car on a hoist. The lights might just turn off after a couple drives and the codes will clear them selves after a long while. Or you can have a shop/dealer clear them for you.

[DaddySS]

If you run the rears without the fronts turning you'll throw a light. It will clear quickly once you're moving or reset the PCM.

[cammed goat]

Same thing happened to me when I had to check my current carrier. Had the car on the lift and got the "ABS Fault!" light/chime while on the lift. Went away once on the ground and moving.

[pajeff02]

Ok -- that's good to hear, thanks for the replies! Hopefully it'll reset itself.

My understanding is that you need a special code reader to access the braking system fault codes. I've never had any brake issues before, so I do not own one. Anyone know if the Actron unit is any good: http://actron.com/product_detail.php?pid=16349 Might not be a bad tool to add to the box since all our DD's have ABS.