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Discussion Starter · #1 ·
Need Help...duramax will start some days and won't others. When turn key on, just clicks all the dash lights go crazy. Disconnected batteries for two minutes, got back in, truck fired up. Some days truck will fire up but all the radio settings are gone. Is this a bad ground, fuse? Any ideas???:help
 

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could be a bad ground. i would deff check your batt connections. your BCM could be at fault also due to your are losing your vehicle settings
 

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body control modual
 

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BCM control is threw the tech 2 only which sucks.
 

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to tell yah i am not sue how much a BCM is. but i know that it will have to be programmed if you get a new one. the BCM controlls all your body functions like seats windows and radio settings and all that good stuff
 
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