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sharpshooter
 Post subject: Help with ABS problem
PostPosted: Wed May 14, 2014 9:32 am 
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Hi folks,

this is my first post here and I have done a quick search of the archives to see if this has already been covered, but cannot find an answer.

I have a 1998 1840cc 323F which failed it's MOT yesterday due to an issue with the ABS. :cry:

I bought the car about four years ago and was not even aware that ABS was fitted as I never has any warning light come on. However was rather puzzled about a button on the dash marked TCS, but this did not appear to do anything, so I ignored it.
Car has only done 79k miles and has sailed through all previous MOT's at the same garage I took it to yesterday. Apparently the MOT rules changed last September and ABS is now part of the test. (albeit just a check to make sure the warning light comes on and goes off within the specified time)

The garage do not have the kit to diagnose the problem and just sent me packing with a failure certificate. I have tracked down a local specialist who deals with this sort of thing, but I just want to go armed with as much background info as possible, to avoid being fleeced with a large bill.

Can anyone comment on this problem, as all other posts seem to be related to the ABS light coming on, not being constantly off.

Thanks in advance

Rich


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HughieW
PostPosted: Wed May 14, 2014 6:19 pm 
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You've posted in the wrong section - either you have a BA or a BJ (1998 is right on the cusp) but you've posted in BG :lol:

I've moved it for you :thumbleft: seeing as you mentioned a TCS button, I assume it's a BJ :thumbleft:

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sharpshooter
PostPosted: Wed May 14, 2014 7:01 pm 
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Cheers Hughie,

I can confirm the car as a BJ...was posted in a moment of frustration and haste.

Will try harder next time!

Cheers

Rich


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Zippy
PostPosted: Wed May 14, 2014 8:18 pm 
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Tbh, sounds like the dash light is just out, it should come on when you initially turn the key, & I think that's the new mOT ruling thingy...

I might be barking up wrong tree...


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sharpshooter
PostPosted: Thu May 15, 2014 1:50 pm 
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I hope it is something as simple as that. Mind you, getting to the back of the instrument cluster to check it might be fun!!!

Cheers

Rich


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Marc S
PostPosted: Thu May 15, 2014 5:34 pm 
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It's easy.

drop the steering wheel low, remove the cowling by the 2 screws at the top of the binnacle, then pull at the bottom to undo the clips.
3 more screws hold the clocks in place, you will need to undo the electrical connectors. all the bulbs are the twist out type :)

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HughieW
PostPosted: Thu May 15, 2014 5:38 pm 
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I'm with Zippy - I reckon it's just a blown bulb on the dash!

And as Marc says, it's real straight forward to get to :) You just need a stubby phillips screwdriver! :thumbleft:

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jinglebells
PostPosted: Thu May 15, 2014 8:08 pm 
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Yes, I'd agree the dash bulb is the (cheapest) place to start looking.

You'll need to work out which bulb is the ABS one! That could be fun.


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HughieW
PostPosted: Thu May 15, 2014 10:09 pm 
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That's easier than you might think! Take the small bulbs out of the back, one at a time, and hold the gauges up to the sun - the sun will shine through and show you what's what :D

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sharpshooter
PostPosted: Mon May 19, 2014 8:00 am 
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Hi folks....a quick update.

I have checked to see if it was just a blown bulb and the plot thickens!!....There was no bulb installed. I pinched one from another location marked "Hold" (which seem to be applicable to automatics...mines a manual) and installed in the ABS hole. Light now comes on.....and stays on! I also found that there were also two bulbs missing from the TCS warnings. I guess the previous owner could have has some major issues and removed all the bulbs to save a repair bill before sale.

I read somewhere that there is a way to check the diagnostics by earthing a pin on a multi plug which will flash the ABS light to indicate the faulty item. Can someone advise where this plug is, as I had a quick look under the dash and can't see anything.

Is there also an easy way to prove 100% that the car is fitted with ABS in the first place, as there is so much stuff under the bonnet, that I would not know what to look for.

Cheers for all the advice so far,

Rich


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Zippy
PostPosted: Mon May 19, 2014 11:37 am 
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sharpshooter wrote:
Is there also an easy way to prove 100% that the car is fitted with ABS in the first place, as there is so much stuff under the bonnet, that I would not know what to look for.


The ABS control unit if you follow the brakepipes in the unit, rectangular thing. Also the ABS speed sensors by the wheels.

If TCS is buggered too, reckon it's to do with the wheel speed sensor things (at least a good starting point).

I'd suggest getting a cheap OBD dongle thing and reading the fault code.


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Marc S
PostPosted: Mon May 19, 2014 1:11 pm 
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Most OBD readers will not deal with the ABS issues

The connector you need is up near one of the suspension turrets I think, you need to short one of the pins to a ground, and then read the code it gives. You can also reset the code - sometimes fixing the fault doesn't clear the code.
Even a dodgy ABS sensor at one corner can make all the warning lights come on, so don't be too scared...not until you've read the codes at least :)

oh, and you have ABS on your 1.8 BJ ;)

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diesel323
PostPosted: Mon May 19, 2014 4:19 pm 
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https://www.youtube.com/watch?v=q2TZhG3bFao
:)


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jinglebells
PostPosted: Mon May 19, 2014 10:32 pm 
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Yes, that YouTube video is pretty useful, but remember he's American so interchange "driver's side" and "passenger's side"!

Over here the socket is under the bonnet, up by the bulkhead on the passenger side, as shown in the video.

The terminals for the ABS flashing test are GND (E) and TBS (N).

I found with mine that sometimes not all the codes come out first time, although they are supposed to. I fixed the right rear on mine (code 13) then the bulb stayed on, tested again and it gave me left rear (14).


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sharpshooter
PostPosted: Tue May 20, 2014 3:18 pm 
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Hi folks...I had to bite the bullet and take the car to a local specialist.

He has diagnosed the ABS pump to be at fault.

Anyone know the best place to get a replacement (or even if it is worth doing)
I guess a genuine Mazda one will be very pricey....are aftermarket examples available? or possibly something used from a breaker.

Cheers

Rich :(


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Marc S
PostPosted: Tue May 20, 2014 6:54 pm 
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Have a word with Neal on here, he's just had his replaced :)

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neal
PostPosted: Tue May 20, 2014 11:03 pm 
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Yep,don't go to Mazda.bloody rip of.i have sent you a pm mate.


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sharpshooter
PostPosted: Wed May 21, 2014 5:00 pm 
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Cheers all....now awaiting quotes from the on-line spares vultures. My local mechanic also mentioned a company called BBA Reman who repair this sort of stuff....anyone used them before, as they seem to offer a lifetime warranty.

Cheers

Rich


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sharpshooter
PostPosted: Tue Jun 10, 2014 7:50 pm 
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Yippee...all now fixed....working ABS pump sourced online for £60 and all MOT'd and back on the road.

Just one final query...I mentioned before that some warning bulbs had been removed from the dash and are now missing...Are these a standard replacement or a Mazda specific part? They seems to consist of a bulb pushed into a holder that needs a 1/2 turn to locate in the back of the instrument cluster. I think the TCS warning bulbs are the ones missing....something else that I guess was related to the ABS pump/control failure.

Thanks to everyone for all the help.

Rich


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Marc S
PostPosted: Wed Jun 11, 2014 1:05 pm 
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How many do you need? I should have a handful of spares :)

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sharpshooter
PostPosted: Wed Jun 11, 2014 3:12 pm 
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Hi Marc S...thanks for the offer...probably only a couple....I remember that I moved a "HOLD" lamp to the ABS position to check the warnings, but I can find any reference to that bulb in the manual....think it's for Auto transmission only. If I am correct there was a TCS and TCS ON bulb missing and several holes that did not look like they ever had bulbs fitted as the PCB solder track was not scratched.

I will pull the dash out again at the weekend and let you now

Cheers

Rich


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Marc S
PostPosted: Thu Jun 12, 2014 1:06 pm 
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There's a few that won't be used. washer bottle level, hold (yep, for auto only) and maybe a couple more that I can't remember :lol:

The larger ones are for illumination, the smaller ones are the warning lights. Let me know how many you need, and drop me your address :)

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jinglebells
PostPosted: Fri Jun 13, 2014 9:22 pm 
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sharpshooter wrote:
I remember that I moved a "HOLD" lamp to the ABS position to check the warnings, but I can find any reference to that bulb in the manual....think it's for Auto transmission only. .

Cheers

Rich


Yes, mine's an Auto and the "Hold" light comes on when I press the "Hold" button on the selector :)
... which Holds it in 3rd (D-Hold), 2nd (3-Hold) or 1st (2-Hold), except D-Hold when moving off from rest when it's supposed to move off normally. :(


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