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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 01-07-2013, 12:15 PM
Hutch911 Hutch911 is offline
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Mein Auto: BMW 730Li
DTC, Parking brake, ABS and power socket problems

Hi folks. I'm having problems with my 2008 730Li. My DTC, ABS lights are on and I'm getting a warning that my parking brake is faulty. I've no power to any power sockets. I've checked the fuses and they're all ok. Is there a relay I should check, and if so can anyone tell me where to find it?

I bought a Maxiscan OBD11 code reader, but no faults are showing up. All these problems have occurred over the past week, and I'm at my wits end with it. Any ideas?

Thanks
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  #2  
Old 01-08-2013, 01:19 PM
Hutch911 Hutch911 is offline
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Mein Auto: BMW 730Li
DTC, Parking brake, ABS and power socket problem

Hi again, hooked the car to an Omicheck scanner. Got a DTC on the parking brake "Hydraulic DSC" and a code 6044. This seems to point to the speed sensors. Anyone got any ideas?

Thanks.
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  #3  
Old 01-08-2013, 05:07 PM
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samadkins29 samadkins29 is offline
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I dunno what the "speed sensors" are but their is a main DTC/DCS/ABS unit in the engine bay that controls everything to best of my knowledge. I have a DTC light on as well and will be looking into it in the next few weeks.
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  #4  
Old 01-15-2013, 06:27 AM
stevest stevest is offline
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I have all three of those lights on as well any ideas yet?
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  #5  
Old 01-15-2013, 07:16 AM
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Rookie2008 Rookie2008 is offline
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You might need to take a look at your ABS module.
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  #6  
Old 01-15-2013, 09:16 AM
stevest stevest is offline
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Is there any way I can test it out? These three light came on all together after I changed the battery last week. The shop said the regestered it when installed.

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  #7  
Old 01-15-2013, 09:18 AM
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Rookie2008 Rookie2008 is offline
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Well if you have yet to register your battery to the car then start there. That can very well be the main culprit to your problem.
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  #8  
Old 01-15-2013, 09:23 AM
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Rookie2008 Rookie2008 is offline
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As for testing the ABS module, I don't know other than swapping modules with someone. Its not hard to remove the module either. I know a guy in L.A who can rebuild yours possibly or get you a re manufactured one with 1 yr warranty if you don't want to sends your to model masters.
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  #9  
Old 01-15-2013, 10:44 AM
stevest stevest is offline
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Shop said it regestered the battery...who is the guy in LA? Maybe he can check it for me.

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  #10  
Old 01-15-2013, 12:38 PM
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Rookie2008 Rookie2008 is offline
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  #11  
Old 01-15-2013, 01:11 PM
Boxer19 Boxer19 is offline
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Quote:
Originally Posted by stevest View Post
I have all three of those lights on as well any ideas yet?
You might try searching the word trifecta. That's when the DSC, ABS, and Brake warning (yellow)lights go on at the same time. I have an E39 with that problem and as soon as the weather is a little warmer I might look at the speed sensors in the rear. Cost for one is about 105.00 ea for mine so for a hundred bucks I may throw one on after checking the old ones for grease, dirt, etc.
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  #12  
Old 01-16-2013, 02:56 PM
Hutch911 Hutch911 is offline
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DTC, Parking brake, ABS and power socket problems

Checked the hidden menu fault list today and found this. Anyone know what the code means?
Still cant trace the fault with the auxiliary power sockets.
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  #13  
Old 01-16-2013, 05:01 PM
cbell13055 cbell13055 is offline
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Hey bud just a bit of a heads up. I had the ABS TCS and PARK brake malfuntion. Turned out to be my R/R speed sensor.

As for the power sockets not working I would say fuse, that's all they are driven off of. Other than that....no idea
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  #14  
Old 01-16-2013, 06:41 PM
stevest stevest is offline
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Any ideas on these codes?

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  #15  
Old 01-16-2013, 06:43 PM
stevest stevest is offline
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  #16  
Old 01-24-2013, 07:21 AM
Hutch911 Hutch911 is offline
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DTC, Parking brake, ABS and power socket problems

Just back from an indy specialist. All faults cleared, the ABS system needed recalibrated.
Looks like I caused the problem myself by pulling the wrong fuse when checking out the power socket problem.

Top marks to Barry at BJF Performance Tuning, Clydebank. Sorted me out and didn't charge me a small fortune.

Still got power socket issues, but hey, thats a minor issue compared to the ABS system faults.
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  #17  
Old 06-05-2013, 09:59 AM
Jimbo6493 Jimbo6493 is offline
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I have aDTC light intermittent BMW main dealer said it was the battery and so it was replaces and all lights out, however after sitting for a while the next start up caused the DTC light to re-appear
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  #18  
Old 06-05-2013, 10:21 AM
Thesatman Thesatman is offline
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When I first got my car it had a battery issue and man ALL SORTS of things were screwy. When I read this thread the first thing I thought was battery even before you mentioned it was recently replaced. Just because a battey is new doesn't mean it is good. When I got my new AGM battery off the shelf I had them check the state of charge on it and it was at like 60%; sometimes those batteries sit on the shelf for a long time...discharging slowly. I'm glad I asked because if i would have put it in and registered it the ar would have thought it was at a full charge. I would have a parts store check the stat of charge on your battery and make sure it is good first...then look for other problems if it is good.

When it comes to troubleshooting use Occam's razor; It states that among competing hypotheses, the hypothesis with the fewest assumptions should be selected. I don't have to assume you changed the battery recently...
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