C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
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Old Oct 7, 2016 | 07:09 AM
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David Shiel's Avatar
David Shiel
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Joined: Nov 2011
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From: Summerville South Carolina
Default Thumpr, your posting your

Originally Posted by thumpur
Ive had some time now to disassemble my fuse box and have a look at everything. The second picture is of a fuse tap pin that was inserted into fuse slot #9 for the BCM. I imagine it was for an accessory to get power whenever the car is turned on. That pin was inserted too far and disrupted the brass wiring inside the fuse block itself, causing intermittent power to the BCM, and occasionally other fuses along the same track. Which is why when I pressed down on certain fuses I was able to achieve contact and get everything to work properly.
If you have a problem with fuse 9 your BCM is basically in "purgatory". I say this because the car thinks its being "cranked" but its actually not. Which is why the car will start when the clutch is depressed and the key is only in the "on" position. And the reason why certain accessories such as AC and radio worked but the windows and locks did not. Im sure someone else can elaborate more, but that's the best way I can think of describing it.

Anyways, for me, the fix was obviously a new fuse box. The my broken/original one was a massive pain to get apart. And if youre not careful you could actually make things worse. Since you can get a used one in working condition for $50-$75 with all the fuses still intact. Id recommend just buying one off a forum member, or vendor. Its nice to have all the extra fuses and switches anyways.
***Huge thank you to users Bill Curlee & David Shiel. Thank you guys again for all your help**

To remove your old fuse box, simply pull the neg terminal off your battery. Gain access to the fuse box in the passenger foot well unbolt the mount to the left hand side, unbolt the power cable on the most "northern" portion of the fuse box. Then carefully remove the 3 plugs and 3 bolts on the back of the fuse box and swap in the new in. It literally takes 10 minutes.

I think I covered everything. The pictures I took wouldn't upload properly, they kept getting blurry so I decided to use these instead just to illustrate what Im talking about
findings will be a huge help to others in the future. Had we moved to the fusebox on mine, we very likely would have solved the intermittent IPC outage on mine. We knew we had an intermittent power loss, but were one step short of identifying it.The faulty solution of a Chevy stealer was to replace the IPC. Thanks for your perseverance.
David
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