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E34 (1989 - 1995)

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  #1  
Old 01-24-2015, 09:58 PM
E34ZombieHunter's Avatar
E34ZombieHunter E34ZombieHunter is offline
Nothin like an E34
Location: Lillington NC
 
Join Date: Feb 2013
Posts: 3,217
Mein Auto: 95 540i B/B
No High Beams

So after my roller coaster of a HID install, everything is sorted out, except my low beam cap; just needs a hole drilled into it, and my High Beams are dead. Getting very angry at the sight of no Highs i did not finish the install on the fogs, nor did i remember to mount the other ballast on the lows, so hopefully it does not fall out, but i do have spares from my previous kit, and the replacement spare ballast i had gotten.

I never touched them or any wiring except the low beam connectors and other connectors when removing the bumper. The dash indicator works, the relay in both my LKMs click, but nothing. The fuses are fine, the bulbs are fine, all connections in-tact and connected as were before.
Upon using the all-so-powerful search aka Google i have found the CCM (crash control module) could be the culprit. Somehow the high beams run through it to flash for a bit after an accident.

Ill test for power tomorrow, but I'm really open to suggestions, and i did not find much info online other than 1 or two threads on the E34, so I will document the wiring journey we all love.
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  #2  
Old 01-25-2015, 01:17 AM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,994
Mein Auto: E23;E30;E38;E32;E34 +
Do you get power to the globe connectors at the light units? If yes - earth problem. If no start working your way back. Is there power to the relay contacts in the LKM. I read the relay is pulling in OK so that rules out the hi/lo switch.
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  #3  
Old 01-25-2015, 01:34 AM
Alpina535I Alpina535I is online now
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Location: Portland, Oregon
 
Join Date: Mar 2014
Posts: 663
Mein Auto: 1990 BMW 535I
Do you have power to the connecters? Your ccm will throw a code on your obc if there is an issue mine went out last month. I have a spare you are welcome to have. Ill ship for free if you need it. Also there is a ground cluster on the front side of the strut tower i eould check on each side. Other then that it would be tracing wire.

Alpina
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  #4  
Old 01-25-2015, 01:34 AM
Alpina535I Alpina535I is online now
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Mein Auto: 1990 BMW 535I
On each side*
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  #5  
Old 01-25-2015, 10:39 AM
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E34ZombieHunter E34ZombieHunter is offline
Nothin like an E34
Location: Lillington NC
 
Join Date: Feb 2013
Posts: 3,217
Mein Auto: 95 540i B/B
So I replaced the CCM, no change, swapped LKMs nothing other than the US LKM has no fogs, but i fixed it with a quick solder job.
I pulled the bulbs and found this, i didn't have them upside down when i checked them before so i did not see it. If you can't see in the images, my 2 month of SilverStar Ultra bulbs, both filaments separated from the base of the bulb. $60 down the drain, but i keep every receipt and according to the Sylvania website, they replace within a year with receipt.

BTW the E34 has two CCM's.
CCM-Check Control Module
CCM-Crash Control Module


AND the Check CM did not tell me they were burned out for some reason.
Oh and if you have the Crash CM out, the highs do not work, i wanted to test it after i fixed the bulbs, so it is another thing that can keep them from working.
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__________________


Gotta love an E34!!
If you want to get junkyard parts remember one thing, if it was wrecked you know it was running/driving. You may not know how well, but it was.

READ THE STICKIES AT THE TOP OF THE PAGE!!

STOMP TEST

READ ME IM THE BIBLE

FAN CLUTCH

LOCKS

ANGEL EYES

Audio

E28 v. E30 v. E34
Reply With Quote
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