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Head unit problem

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Old Jun 5, 2011 | 10:17 PM
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Default Head unit problem

I am having problems with my head unit not coming on. Sometimes it turns on when I turn the key, other times it doesn't and it takes a few minutes and then decides to turn on. I figured the head unit was just going out so yesterday I went out and spent $100 on a new one. Installed it and the same thing happens
Does this sound like a ground wire to you guys? I hope I'm not going to have to do anything drastic for this one....thanks in advance
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Old Jun 6, 2011 | 03:27 PM
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Do the windows stop working at the same time? If so, it's a common problem with broken solder joints in the BCM.
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Old Jun 6, 2011 | 08:29 PM
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Yea the windows stop working also. I will be looking into that tomorrow then. Thanks!
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Old Jun 6, 2011 | 08:32 PM
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another thing to look for is... Does it act crazy when you go over rough pavement? that is a dead giveaway the bcm is in need of repair....my door locks use to lock and unlock all the time while i was driving... took it in for service and they said my keyfob was bad making the locks go nuts.. lol dumbasses
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Old Jun 6, 2011 | 08:55 PM
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Yea it likes to cut out when I hit bumps. Hopefully I see a cracked solder joint on the BCM like stated above...seems like it has happened to many people before
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Old Jun 6, 2011 | 08:59 PM
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check out this thread.. has pics and other links to show the repair and exactly where to look...Ive done this repair myself 3 times on other vehicles, make sure you have a good iron, not too hot or cold, a 35watt one is the best. if you hold too long or add too much solder/flux, you could get into trouble....

https://ls1tech.com/forums/general-m...ion-fixed.html
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Old Jun 7, 2011 | 08:50 PM
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It appears to be fixed!! I turned the key about 30 times and it came on every time...and took a nice 15 minute drive and it never cut out. Took a pic of the circuit board after adding solder. I saw a very small crack on the bottom joint of the T-shaped group. Also heated the other joints. I hope it continues to work. Thank you very much guys
Attached Thumbnails Head unit problem-bcm.jpg  
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Old Jun 7, 2011 | 10:00 PM
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Works every time. Mine did that to. I couldn't even see the cracks in my solder joints but I redid them anyway. Problem went away. This was a long time ago but it is a common problem.
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Old Jun 7, 2011 | 10:44 PM
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nice to see someone who's not a chicken **** and takes apart their stuff ... nicely done man.
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