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Author Topic: Unusual fault?  (Read 1838 times)

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bconnelly

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Unusual fault?
« on: 20 April 2009, 21:09:26 »
Hi.

It may be coincidence but after getting two new front tyres fitted I was driving along the motorway when the ABS and TC lights came on, at the same time the speedo needle dropped to zero and the power steering seemed to cut out. This now happens randomly for between 5 minutes to 20 minutes but usualy corrects itself eventually. Any ideas guys?

BC
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Proz

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Re: Unusual fault?
« Reply #1 on: 20 April 2009, 21:10:59 »
ABS ecu fubar i belive  :'(
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VX1

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Re: Unusual fault?
« Reply #2 on: 20 April 2009, 21:11:24 »
Check your fuses buddy :y

Paul :y
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TheBoy

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Re: Unusual fault?
« Reply #3 on: 20 April 2009, 21:21:55 »
Quote
Check your fuses buddy :y

Paul :y
it corrects itself, so not fuses ;)
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cem_devecioglu

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Re: Unusual fault?
« Reply #4 on: 20 April 2009, 21:21:56 »
Are your tire sizes same or different ?
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TheBoy

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Re: Unusual fault?
« Reply #5 on: 20 April 2009, 21:22:37 »
seeing as they messed with front wheels, check wiring to sensors.

My gut reaction is shafted ecu though  :'(
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Grumpy old man

cem_devecioglu

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Re: Unusual fault?
« Reply #6 on: 20 April 2009, 21:25:21 »
if their circumferences are different this also can cause problems on ABS.. its a known fact..
« Last Edit: 20 April 2009, 21:26:23 by cem_devecioglu »
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HI2DVY

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Re: Unusual fault?
« Reply #7 on: 20 April 2009, 21:28:27 »
Yup - check the tyre sizes on the front match those on the back. If not, then one set will be turning faster than the other, thus knocking the sensors and ECU's out. Happened to me a while ago after a visit to Kwik-Bodge.
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VXL V6

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Re: Unusual fault?
« Reply #8 on: 20 April 2009, 21:29:19 »
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if their circumferences are different this also can cause problems on ABS.. its a known fact..

Yep, seen that on a Merc.
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TheBoy

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Re: Unusual fault?
« Reply #9 on: 20 April 2009, 21:31:12 »
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if their circumferences are different this also can cause problems on ABS.. its a known fact..
Doesn't cause loss of speedo/pas though normally, just brings on the lights  :-/
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cem_devecioglu

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Re: Unusual fault?
« Reply #10 on: 20 April 2009, 21:33:45 »
Quote
Quote
if their circumferences are different this also can cause problems on ABS.. its a known fact..
Doesn't cause loss of speedo/pas though normally, just brings on the lights  :-/

May be his ABS is a bit grumpy.. :y
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Entwood

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Re: Unusual fault?
« Reply #11 on: 20 April 2009, 21:43:58 »
Classic ABS ECU ... been there got the t-shirt ... AFAIK you have 3 options ..

New from Vx ... around £500-600 .. :(
Get yours repaired ... £130-£150
Get one from a breaker ...

If you want to get a decent quote for the repair option .. bba-reman did mine and I was very pleased with the service.

01634 687222 .. worth a phone call at least.

Changing it is a bugger .. most folks seem not to put all the bolts back in !!  Several threads on this in the past ..

HTH
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bconnelly

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Re: Unusual fault?
« Reply #12 on: 20 April 2009, 21:49:36 »
Seems i've given you guys a real puzzler  ;). Tyres are the same as the rear and I cant see any fuses blown. The guy doing the tyres had to use a big hammer to remove the locking wheel nuts as the key broke but he didnt appear that rough. Nothing simple ever happens to me  :'(
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iainb

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Re: Unusual fault?
« Reply #13 on: 20 April 2009, 21:53:27 »
Have a good look at the front speed sensors and brake back plate, they may have dislodged the sensor when refitting the wheels
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Proz

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Re: Unusual fault?
« Reply #14 on: 20 April 2009, 22:43:54 »
My money is still on dodgy Abs Ecu  :(
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