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Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 05-31-2012, 09:11 AM   #1
Tritan84
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Abs/dsc/brake light turned off on ramps

I know there's a number of posts about this topic and reasons for the abs/dsc/brake light to be on.

But anyone have an idea of why these lights would spontaneously shut off after I had my car on rhino ramps for a little while? They stayed off for about a day and my dsc system worked fine, but the lights popped back on and the system doesn't work again.

Also, anyone know which scanner will tell me whether it's a speed sensor or the control module?

Thanks

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Old 06-01-2012, 11:35 AM   #2
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A Peake reader is going to be one of your best options for pulling the codes up. I have several of them avaible HERE which will work properly on your 325.

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Old 09-10-2012, 11:56 AM   #3
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Is the peake reader detailed enough to tell me whether i'll need a new dsc module, steering angle sensor, or speed/abs sensor?

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Old 09-11-2012, 12:39 PM   #4
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if you have an android phone get an app called "torque" then buy an OBD2 diagnostic bluetooth adapter (they are really cheap)
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Old 09-11-2012, 01:42 PM   #5
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Yea, I've seen that app before. I'm not sure it has the capabilities of what I want to do (clear airbag light, diagnose dsc/abs light)

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Old 09-11-2012, 01:44 PM   #6
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The peake reader will pull any codes out of the system. Typically if a module has failed there is a code which correlates to that vs a sensor. Please note the Peake reader will not read ABS module.
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Old 03-24-2013, 11:07 AM   #7
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Quote:
Originally Posted by ECSTuning View Post
The peake reader will pull any codes out of the system. Typically if a module has failed there is a code which correlates to that vs a sensor. Please note the Peake reader will not read ABS module.
can anyone clarify this point for me?

my gf got the triple lights (brake, abs, dsc) on the dash yesterday and when i ran the codes i got nothing relevant. (some O2 sensor codes, but that's another matter.) the warning lights went away after she turned the car off, then on again, so i got nothing here.

am i to understand from the post above that a code reader won't show an ABS fault? that doesn't make sense to me, but . . . .

thanks.

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Old 04-02-2013, 01:48 AM   #8
alx.325i
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OBD II and the Peake reader will not pull abs/dsc codes. I'm dealing with the triple lights myself now. No codes on my OBD II scanner, but one code from my Peake Tool was 'Memory Self Test, Control Module Defective' but it doesn't tell me what module. I cleared the code and it hasn't come back, although the triple lights remained on the entire time.

I tried to get advice here also when I first got the lights and was hoping it would be a speed sensor or other minor issue other than the module being bad, but others just adviced to pull codes before spending time/money guessing. So I ordered the bmw scanner with PA Soft 1.4 for $26on ebay and got it in about 8-9 days from china. I was able to pull the codes and verify that my module was indeed faulty. I think its the only way to be sure if its your module or a speed seed sensor, steering wheel angle sensor, etc...

The scanner can also do some programming and pull other codes OBD II/Peak tool can't. It'll be the best $26 dollars you'll spend on a diagnostic tool. Only thing is you have to run it on 32-bit Oper. Sys. I had an old lap top that had Win XP so i was fortunate. Others have found a way to load it on Win 7-64 bit.

Good luck

Last edited by alx.325i; 04-02-2013 at 01:59 AM.
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