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ABS INOP...getting annoyed now...

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Old Nov 30, 2004 | 03:43 PM
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Default ABS INOP...getting annoyed now...

Alright, i'm getting annoyed now.

I had an SES and ABS light on. It was not a TPS problem because the SES has turned itself off (it was a cat code) but the ABS INOP remains. I've driven it well over 350 miles and it's been over two weeks.

There are NO loose wires...

wtf.

It seems to be a common problem, but nobody i've asked knows how to fix it because, unfortunately for me, it's more than just an unplugged wire. I don't want to go to the dealer just to have them BS me either.

This all happened after I got the car dynoed.

Please help.
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Old Nov 30, 2004 | 04:03 PM
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that means that the wheel sensors arent matching the same pulse from the front of the car to the rear.. having your car on the dyno makes the front tires not turning, and the rear are.. normally the car just resets after you turn it off and on then start driving again it sees the pulses are there and it turns back on.. but when they strapped the car on the dyno they could have pulled or cut the wheel sensors wiring in the rear, id check that if it dont go away. jes
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Old Nov 30, 2004 | 04:04 PM
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I have had the light come on after the car was dynoed before too, but it was gone the next day.....

Good luck with it.
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Old Nov 30, 2004 | 04:19 PM
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I checked the front wires/plugs and back wires/plugs and they are fine.

Weird thing is that the brakes pulse when I brake hard as if the ABS is working.
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Old Dec 4, 2004 | 05:23 PM
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Here is a pic of the back sensor connector.



And a pic of the wire...



Can any of you see anything that may be causing my ABS blues? Grounds? Anything?

BTW: Aftering testing my brakes again, they did in fact lock up......ABS is not working.
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Old Dec 5, 2004 | 01:40 AM
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We had this problem on a car that we dynoed. It turned out that the connectors in the plug had been pulled back. They didnt come out, but they had pulled back far enough that they didnt make a good connection. I took a very small screw driver and pushed them back in and the problem was solved.
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Old Dec 6, 2004 | 12:12 AM
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which end of it was pulled back?
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Old Dec 6, 2004 | 01:56 AM
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I have this same problem. Do you run different size tires in the front and the rear? The circumfrence of the tires have to be within 10% for the abs to work properly.
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Old Dec 6, 2004 | 06:02 AM
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It was the part of the harness that actually plugs into the connection on the underbody of the car.
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Old Dec 6, 2004 | 07:47 PM
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just for ***** and giggles check any/all related fuses. my light always went away minutes after the dyno session (after the car was driven that is).
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Old Dec 7, 2004 | 12:30 AM
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Fuses check out. I'll check out the side that goes into the underbody.
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