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  #1  
Old 02-25-2019, 11:09 AM
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Join Date: Feb 2019
Location: Long Island, NY
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doooglasss is on a distinguished road
Electrical problems

My cousin is giving up on his X5 and likely dumping it in my driveway in the next couple of weeks. The car has some problems that are easily fixed, but also has some fun electrical issues.

If you put the headlights in automatic mode they flash on and off very quickly. If you use the manual on/off side of the switch they stay on.

The interior dome light goes on and off.

The wipers work, then fail mid-sweep, then randomly start to work again for a second then stop.

In my reading I found info on the GM3 body control module. Emailed Scott at BMW General Module 5 (GMV, ZKE V) and he told me he has never seen these issues with a GM3 going bad.

I guess I'm starting to think bad ground connection somewhere? Anyone seen anything like this before?

I searched and it seems like a good BMW scan program is GT1? I see a bunch of ebay listings but no official site to purchase it?
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  #2  
Old 02-25-2019, 01:08 PM
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Location: Saskatchewan Canada
Posts: 867
80stech is on a distinguished road
Tackle one thing at a time, it's not unlikely that the three problems are not related. I think GT-1 actually refers to the BMW tool that runs DIS and some other software which is what you are looking for. You will need a laptop to run it and if the package includes the WDS wiring diagrams it could be a huge help with the electrical problems.
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Last edited by 80stech; 02-25-2019 at 01:11 PM. Reason: add
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  #3  
Old 02-25-2019, 01:20 PM
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Join Date: Jul 2016
Location: Menlo Park, CA
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Fifty150hs is on a distinguished road
Quote:
Originally Posted by doooglasss View Post
My cousin is giving up on his X5 and likely dumping it in my driveway in the next couple of weeks. The car has some problems that are easily fixed, but also has some fun electrical issues.

If you put the headlights in automatic mode they flash on and off very quickly. If you use the manual on/off side of the switch they stay on.

The interior dome light goes on and off.

The wipers work, then fail mid-sweep, then randomly start to work again for a second then stop.

In my reading I found info on the GM3 body control module. Emailed Scott at BMW General Module 5 (GMV, ZKE V) and he told me he has never seen these issues with a GM3 going bad.

I guess I'm starting to think bad ground connection somewhere? Anyone seen anything like this before?

I searched and it seems like a good BMW scan program is GT1? I see a bunch of ebay listings but no official site to purchase it?
Bad ignition switch?
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  #4  
Old 02-25-2019, 02:28 PM
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Join Date: Apr 2009
Location: Columbus, Ohio
Posts: 489
Purplefade is on a distinguished road
Check out the connections behind the review mirror where your rain sense and day/night sensors are mounted- not saying that’s he issue but with the auto headlight issue and the auto wiper issue seems the “auto” portion of those may be experiencing a problem. I know I ha e seen oil film on my windshield totally screw my rain sense wipers... just thinking out loud. Good luck!


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  #5  
Old 02-25-2019, 02:35 PM
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Location: Long Island, NY
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doooglasss is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
Bad ignition switch?
Thanks good lead!

A little googling and it seems like that might be relevant and causes all types of weird electrical issues.
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