Yukon wont start

[SunlitComet]

well if windows is ops too with doors open then that fuse wont save the day by itself but may help with drain down a bit. pm me your email address so i can send you some pdf's on further diag of the body control module.

 

[SunlitComet]

PM received and pdf sent. use the instructions to enter the bcm diagnostics to look for any dtc's. something may or may not show up. let me know here so we now how to proceed. at worst case scenario you may have to de-pin a connector on it to isolate inputs that might be keeping the bcm awake. if isolation proves no external fault then the bcm will need replacing. At this time and based on what you have described so far I think this is what is happening and that is what is draining your battery.

 

[99yukon84]

PM received and pdf sent. use the instructions to enter the bcm diagnostics to look for any dtc's. something may or may not show up. let me know here so we now how to proceed. at worst case scenario you may have to de-pin a connector on it to isolate inputs that might be keeping the bcm awake. if isolation proves no external fault then the bcm will need replacing. At this time and based on what you have described so far I think this is what is happening and that is what is draining your battery.

I'm thinking your right about the bcm. I also having problems with the interior lights sometimes they come on sometimes they don't. I'm going to track down a new bcm and just replace it

 

[99yukon84]

PM received and pdf sent. use the instructions to enter the bcm diagnostics to look for any dtc's. something may or may not show up. let me know here so we now how to proceed. at worst case scenario you may have to de-pin a connector on it to isolate inputs that might be keeping the bcm awake. if isolation proves no external fault then the bcm will need replacing. At this time and based on what you have described so far I think this is what is happening and that is what is draining your battery.

Update:
Everything looked good tell I turned it over

Thanks again SunlitComet for the info on this stuff now I have to track a new one down then have it programed would have not known where to turn without your help

 

[SunlitComet]

picture is fuzzy to me. is that a burn out i am looking at or corrosion? did something spill in there? In any case, DAMN!. that is harsh.

 

[99yukon84]

picture is fuzzy to me. is that a burn out i am looking at or corrosion? did something spill in there? In any case, DAMN!. that is harsh.

I believe it's very bad corrosion

 

[SunlitComet]

i would make sure that you are not leaking thru the windshield or door seals or cowl screws.

 

[99yukon84]

i would make sure that you are not leaking thru the windshield or door seals or cowl screws.

True I think the person before me spilt something down there and it got a maybe because when I got it the center console was really dirty and sticky

 

[99yukon84]

i would make sure that you are not leaking thru the windshield or door seals or cowl screws.

Do you know if I found one out of a 2000 yukon denali mine is 99 would it work without a reprogramming at the dealer or do I have to go to the dealer?

 

[SunlitComet]

if still obs body it should work fine but the keyless fob if use will still be needed. doable on your own tho.