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Old 10-17-2012, 08:03 PM   #1
jimrdunham
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Default How to Remove c6 fuse/relay box

Looks like the under hood fuse box is easy to remove. Once it is loosened from the holder, there are 4 connectors on the bottom. I don't want to force them, how are they removed?
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Old 10-17-2012, 09:01 PM   #2
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Quote:
Originally Posted by jimrdunham View Post
Looks like the under hood fuse box is easy to remove. Once it is loosened from the holder, there are 4 connectors on the bottom. I don't want to force them, how are they removed?
Not sure if I can give you a clear picture but....
Have you already separated the top half of the fuse block from the bottom via the clips on the sides?

Once you separate the top from botom half, underneath the top half there's a plasic cover over each separate rectangular module (for lack of better words). The plastic cover simply unclips from each module. Then you unscrew whichever module you are removing via one of four screws. The screw routes down through the top of the fuse block, between the fuses/relays, down into the particular module. This will allow you access to the wiring connectors.


Edit: if you are just looking to get the entire fuse block/cover out of the way slightly but not get to wiring, there are screws/nuts holding it down.

Last edited by DSOMC6; 10-17-2012 at 09:04 PM.
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Old 10-17-2012, 09:21 PM   #3
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Hi DSMOC6, thanks for the reply.
Let me try to clarify what I'm doing. I want to remove the fuse block and either replace it or modify it based on a low beam problem that was described in another post.
I have separated the top and bottom with the the 4 clips on the the sides of the box. I was then trying to remove the plastic covers (rectangular modules) but I didn't want to force them for fear of breaking. If I understand correctly the plastic covers should just pop off with a screw driver or other tool and unscrew the 4 modules to remove the box, is that right?
To replace the new box I just do the reverse.
Thanks again for your help.
Jim D
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Old 10-17-2012, 09:48 PM   #4
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Quote:
Originally Posted by jimrdunham View Post
Hi DSMOC6, thanks for the reply.
Let me try to clarify what I'm doing. I want to remove the fuse block and either replace it or modify it based on a low beam problem that was described in another post.
I have separated the top and bottom with the the 4 clips on the the sides of the box. I was then trying to remove the plastic covers (rectangular modules) but I didn't want to force them for fear of breaking. If I understand correctly the plastic covers should just pop off with a screw driver or other tool and unscrew the 4 modules to remove the box, is that right?
To replace the new box I just do the reverse.
Thanks again for your help.
Jim D
Each of the four prominent screws arranged in a row down the center of the fusebox secures one of the big harness connectors on the bottom.

Here's the trick: to remove one of the connectors, loosen its corresponding screw and back it out until it's almost removed. Then push down on the loose screw to pop the connector out the bottom. No prying or pulling on the wiring is required.
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Old 10-17-2012, 11:02 PM   #5
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Yes Jim, the cover is just snaped in place. A small flathead screw driver to gently pry it apart works fine. I had to pull mine apart to get to the fuel pump wire that was intermittently shorting out. Wire and connector looked fine once I opened it up. So I just bent the connector back for more snug fit, a little dielectric grease and it was good to go.

If you have to pull wire(s) loose, there are plastic locks on the side that hold the connectors in place. Be careful not to let other wires escape as it's a cluster**** of wiring. Better yet take a couple pics so you know which wire goes where just in case one escapes.

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Originally Posted by torquetube View Post
Each of the four prominent screws arranged in a row down the center of the fusebox secures one of the big harness connectors on the bottom.

Here's the trick: to remove one of the connectors, loosen its corresponding screw and back it out until it's almost removed. Then push down on the loose screw to pop the connector out the bottom. No prying or pulling on the wiring is required.
Good tip.

Last edited by DSOMC6; 10-17-2012 at 11:10 PM.
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Old 10-18-2012, 09:39 AM   #6
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IIRC those covers don't have to come off. Once the box is seperated do as mentioned above in loosening each bolt at the top of the fuse block till loose then push the bolt down and the module will pop loose. Also each of the four blocks will only plug in one way and will only reach to just where it's going.
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Old 10-18-2012, 02:24 PM   #7
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Thanks for the tips. I'm going to work on it this afternoon and hopefully get it back together today.
Jim D
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Old 05-11-2013, 02:31 PM   #8
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Thanks for the tips. I'm going to work on it this afternoon and hopefully get it back together today.
Jim D
Same thing Im going to try! Thanks all for this info. I was missing pushing the bolt down.

Let me know if you solved the low beam lights problem. I have the same problem along with the gauges problem (fuel, oil, tach, rmp, battery etc...) they are all dead. Im not finding anythin related to the gauges, only the lights.
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Old 06-20-2013, 08:35 PM   #9
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How did it go for anyone? I'm having the same headlight problem. I was able to remove the fusebox, but now how do I get the actual fusebox open to see all the wires? Apparently the fusebox problem is a common issue. You have to repair some of the connector wires. A local vette shop is charging $480 for the fix. I feel I can do it myself if I can get into it. With the fusebox out, I see no more clips or screws. There's a place towards the top where I can get a flat head in, do I just pry it apart? I applied a decent amount of pressure and it didn't budge. I didn't want to break anything. Any info helps. Thanks guys.
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Old 06-20-2013, 10:33 PM   #10
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Quote:
Originally Posted by jvc6 View Post
How did it go for anyone? I'm having the same headlight problem. I was able to remove the fusebox, but now how do I get the actual fusebox open to see all the wires? Apparently the fusebox problem is a common issue. You have to repair some of the connector wires. A local vette shop is charging $480 for the fix. I feel I can do it myself if I can get into it. With the fusebox out, I see no more clips or screws. There's a place towards the top where I can get a flat head in, do I just pry it apart? I applied a decent amount of pressure and it didn't budge. I didn't want to break anything. Any info helps. Thanks guys.
Have a look at this installation guide for an APS TT setup:http://airpowersystems.com/corvette/...tall_guide.htm

Page down to step 92 and go from there.

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Old 06-20-2013, 11:34 PM   #11
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Quote:
Have a look at this installation guide for an APS TT setup:http://airpowersystems.com/corvette/...tall_guide.htm

Page down to step 92 and go from there.

BJK
Thanks for the quick reply. Yeah I got that far. I had the top part of the fuse box out. But on that back side of that top part are just the prongs that the 4 looms plug into. I assume the wiring issue is inside of the top part of the fusebox that the relays and fuses plugin to but there are no clips or screws to open that. I took out all the fuses and relays in the area of the headlamp relay and sprayed contact cleaner in there but that did nothing. I'm going to take another stab at it tonight. I'll take some pics if I get it open. If I press on the relay while headlamps on the headlamps do come on and off. If I turn that main bolt also. So the problem is definitely in there. I bought this Vette 9 days ago and haven't been able to drive it past sundown (as is).
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Old 06-21-2013, 09:16 PM   #12
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Okay, so I took it out again... Those large 4 screws that hold the top of the fusebox into the 4 looms below have the washers riveted on the ends so they don't come completely out. I took the whole fusebox off and out and was working on it on my couch (haha) but the fusebox itself won't pry open because of those 4 screws. They won't actually screw out, they screw into the looms but the riveted washers keep them in there. I even tried hammering them out somewhat to pop the rivets but I didn't want to hammer too hard and break the unit. So I have no idea how the repair shops get it open. And of course they won't share that secret with me, hence their $480 fee. So I'm out of ideas. Guess I'm just going to have to pay.
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Old 06-22-2013, 12:23 AM   #13
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There is no secret that they know that is unknown here on the forum...someone here will help. I would if I had ever been into the fuse box.
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Old 06-22-2013, 06:14 PM   #14
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Default C6 Low Beam Issue

I have been researching and following this issue for nearly a year now. The best source of info I have found is on the NHTSA website where over 40 complaints(including my own) have been filed by owners of 2005-207 C6 Corvettes with this issue.GM is currently supposed to be responding to the NHTSA's investigation by July 1, 2013 unless they request an extension. You can follow the research and GM's response by searching for investigation PE 13-013 on the NHTSA's website.
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Old 06-22-2013, 07:38 PM   #15
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I now have this dreaded issue as well. Low beams work in the morning for about 10 mins, then go out. Replaced the relay and made sure stalk and auto sensor were good. Found a new fuse box on Ebay for $200, but don't want to buy and have the same issue. I am attempting to remove the fuse box as the OP is, but what is it you are looking for? Burnt wiring or bad pins?
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Old 06-22-2013, 09:21 PM   #16
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Everything you ever wanted to know about taking the C6 fusebox apart, with pictures.
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Old 06-22-2013, 10:48 PM   #17
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I just knew that someone would come through...
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Old 06-22-2013, 11:45 PM   #18
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Do we know what causes that wire to break???
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Old 06-22-2013, 11:50 PM   #19
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Do we know what causes that wire to break???
Probably work hardening due to repeated bending caused by thermal expansion and contraction. They always break in the same spot.
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Old 06-23-2013, 12:26 AM   #20
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Probably work hardening due to repeated bending caused by thermal expansion and contraction. They always break in the same spot.
That is really wild...and it doesn't look like there is anything unusual about that particular bend...there are lots of bends that look the same...someone deserves lots of credit for finding that tiny break.
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Old 06-23-2013, 12:26 AM
 
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