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Author Topic: ABS/TC ECU repair - how to open it !  (Read 2608 times)

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kevpuk

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ABS/TC ECU repair - how to open it !
« on: 02 June 2009, 12:09:54 »
So my replacement ECU seems to be dtingy (boo !!) and so I figured it is time to try to fix it (and the other one !)

Pretty sure I saw a photo from someone (Marks DTM Calib ??) on the internals of one of these, showing the ribbon connector to be the usual damaged part.....

Question is, how does one open these units up - properly ! - so that it can be repaired and put back together correctly ?
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Kevin Wood

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Re: ABS/TC ECU repair - how to open it !
« Reply #1 on: 02 June 2009, 12:16:04 »
It looks to me like a square plastic lid comes off the module just below the main loom connector. - Or at least there were signs of this having been re-sealed on the recond one I fitted yesterday.

No idea how it's best removed without damage. I had a feeling the repair was a very small gold wire running onto a substrate with some semiconductor devices on, so probably not easy without a microscope.

Kevin
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kevpuk

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Re: ABS/TC ECU repair - how to open it !
« Reply #2 on: 03 June 2009, 22:20:16 »
Hmm, well sounds a little daunting :(
Still, won't really know until opened one up, I suppose.....and then there is finding someone to remove and replace (the chap who did it for me last time is not so keen to do it again, and I failed miserably - Doh !!)
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Kevin Wood

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Re: ABS/TC ECU repair - how to open it !
« Reply #3 on: 03 June 2009, 23:32:18 »
Quote
Hmm, well sounds a little daunting :(
Still, won't really know until opened one up, I suppose.....and then there is finding someone to remove and replace (the chap who did it for me last time is not so keen to do it again, and I failed miserably - Doh !!)

Yep. It's a real fun job, but Ok with the right tools. A selection of Torx screwdriver bits and a 90 degree drive for them is the key. Oh, and lots of patience. ::)

Kevin

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kevpuk

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Re: ABS/TC ECU repair - how to open it !
« Reply #4 on: 03 June 2009, 23:53:54 »
Yep, that's me out of it ^^ on all counts  :o
So I plan to go badger local garages for quotes :(
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kevpuk

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Re: ABS/TC ECU repair - how to open it !
« Reply #5 on: 17 June 2009, 21:21:21 »
Eeek ! SO now my Power Steering has died too (whenever the ABS/TC lights are on, which is 90%).....Booo !
Guess this is related ? Sure I read somewhere that the power steering can be affected by this ECU failure (but not sure how !!)...?  :-X
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Entwood

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Re: ABS/TC ECU repair - how to open it !
« Reply #6 on: 17 June 2009, 21:29:19 »
Power steering is speed sensitive on the omega... gets lighter the faster you go..... and gets its information via the ABS ECU .. so when that fails the power steering defaults to its "heaviest" setting.

HTH
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kevpuk

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Re: ABS/TC ECU repair - how to open it !
« Reply #7 on: 17 June 2009, 22:08:22 »
Quote
Power steering is speed sensitive on the omega... gets lighter the faster you go..... and gets its information via the ABS ECU .. so when that fails the power steering defaults to its "heaviest" setting.

HTH

Ah-hah ! That explains that :)
So BBA reman, here I come....anyone local (~ish) want a fitting job  :D
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JueV6

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Re: ABS/TC ECU repair - how to open it !
« Reply #8 on: 17 June 2009, 22:41:09 »
Quote
It looks to me like a square plastic lid comes off the module just below the main loom connector. - Or at least there were signs of this having been re-sealed on the recond one I fitted yesterday.

No idea how it's best removed without damage. I had a feeling the repair was a very small gold wire running onto a substrate with some semiconductor devices on, so probably not easy without a microscope.

Kevin

Thats exactly what Mr MDTM showed me :y
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Kevin Wood

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Re: ABS/TC ECU repair - how to open it !
« Reply #9 on: 19 June 2009, 14:48:03 »
Quote
Quote
It looks to me like a square plastic lid comes off the module just below the main loom connector. - Or at least there were signs of this having been re-sealed on the recond one I fitted yesterday.

No idea how it's best removed without damage. I had a feeling the repair was a very small gold wire running onto a substrate with some semiconductor devices on, so probably not easy without a microscope.

Kevin

Thats exactly what Mr MDTM showed me :y

I'm sure he posted a picture recently but my divining skills are not working so far.

Kevin
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kevpuk

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Re: ABS/TC ECU repair - how to open it !
« Reply #10 on: 19 June 2009, 17:42:42 »
Yeah, I saw the picture.....my father is planning to take a look at the one currently on the car (retired electronics engineer and a dab hand at this sort of thing...) - the one that was originally on the car and replaced a few months back is on it's way to repairers (went with these guys) so will hopefully get working unit back quickly :) Forced into my Toledo T Sport (not all bad !!) in the meantime, but that is more of a go kart than comfy cruiser :(
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Marks DTM Calib

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Re: ABS/TC ECU repair - how to open it !
« Reply #11 on: 19 June 2009, 22:34:26 »
Quote
Yeah, I saw the picture.....my father is planning to take a look at the one currently on the car (retired electronics engineer and a dab hand at this sort of thing...) - the one that was originally on the car and replaced a few months back is on it's way to repairers (went with these guys) so will hopefully get working unit back quickly :) Forced into my Toledo T Sport (not all bad !!) in the meantime, but that is more of a go kart than comfy cruiser :(

That he maybe but, without a microscope, a very fine bit soldering iron and some silver sodler, he will not succeed (note, he was in the same trade as I am in!)
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kevpuk

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Re: ABS/TC ECU repair - how to open it !
« Reply #12 on: 20 June 2009, 13:28:15 »
Well the good news is the repairers called this morning to say all fixed (hybrid lead failure) and it will be with me Monday/Tuesday :)
So we can then look how it was opened/sealed and set to work on the spare !
Realise that it may be tricky, but never say never :D
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