Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: ram 428 on 28 July 2010, 08:25:37

Title: ABS is always on
Post by: ram 428 on 28 July 2010, 08:25:37

Hi/

It appears that my abs is always on when I brake. I would assume this is down to a faulty sensor. Is it possible to remove each sensor and test i.e drive up the road to see which one is at fault? Or is there another way

Thanks,
Jamie

Title: Re: ABS is always on
Post by: alank46 on 28 July 2010, 09:01:10

Hi Jamie
What symptoms do you have and what age is the car.  Is the ABS light on?
Alan

Quote

Hi/

It appears that my abs is always on when I brake. I would assume this is down to a faulty sensor. Is it possible to remove each sensor and test i.e drive up the road to see which one is at fault? Or is there another way

Thanks,
Jamie

Title: Re: ABS is always on
Post by: ram 428 on 28 July 2010, 09:32:19

Hi/

1998 CDX 71,000 miles. Juddering upon braking. ABS light is not on.

Regards,
Jamie

Title: Re: ABS is always on
Post by: megaomega123 on 28 July 2010, 10:00:21

Sounds more likely to be warped discs.

Title: Re: ABS is always on
Post by: Marks DTM Calib on 28 July 2010, 11:48:01

Or buggered front wishbone bushes......

Title: Re: ABS is always on
Post by: ram 428 on 28 July 2010, 12:15:47

it happened all of a sudden. the car was fine then not used for a two weeks (due to heavy snow), then when i used it the juddering started.

Title: Re: ABS is always on
Post by: Abiton on 28 July 2010, 12:21:18

Quote

Hi/

It appears that my abs is always on when I brake. I would assume this is down to a faulty sensor. Is it possible to remove each sensor and test i.e drive up the road to see which one is at fault? Or is there another way

Thanks,
Jamie

I'm pretty sure that due to the way ABS systems have to be fail-safe, this is actually impossible.  "Safe" in this context  meaning "Does nothing to interfere with the normal braking system"
So if there is any fault detected by its 'selfchecking' it simply does nothing, as if it weren't fitted at all.

Title: Re: ABS is always on
Post by: ram 428 on 28 July 2010, 12:31:28

So i have three options abs faulty, wishbone bushes or discs.

I assume then that i can take the sensors out and the abs (if it is this) would not judder, as its not sensing. With the wishbone i would thought this would happen all the time? I will check the discs but it seems strange that it can happen straight away, like flicking a switch i thought you might see some deterioration

Title: Re: ABS is always on
Post by: Abiton on 28 July 2010, 13:03:33

Does the ABS light come on with the ignition, and then go out again?
If so I think you can rule out ABS problems.

Title: Re: ABS is always on
Post by: MonzaGSE on 28 July 2010, 13:06:13

There's a fuse to the abs in the fusebox. Pull it out and abs is of. Then you can se if the problem is still there.

Title: Re: ABS is always on
Post by: ram 428 on 28 July 2010, 13:09:14

Thanks Monza GSE. I like that one.

Title: Re: ABS is always on
Post by: 2woody on 28 July 2010, 15:39:02

also, if ABS is running (i.e. modulating), you'll be able to hear the recirculation pump running.