Help please! Fuse box layout does not match book
Thread Starter
Racer
Joined: Apr 2005
Posts: 364
Likes: 0
From: Schertz TX
Help please! Fuse box layout does not match book
I have a 79 Vette that I am rebuilding. The fuse box does not match any diagrams I pull up for the 79 Vette. I am trying to find the correct fuse for the door locks. 
Any help would be greatly appreciated. If someone has a fuse box layout for this type of fuse box, this would really help.
Any help would be greatly appreciated. If someone has a fuse box layout for this type of fuse box, this would really help.
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
That's definitely a '79 fuse box but some of those fuses are of the wrong value.
To answer your direct question, the power locks are in the CTSY/CLK circuit. That circuit is where you have a "7.5" fuse and it should be a 20A.
The fuse directly to the left of it should also be a 20A.
The far left 20A fuse should be a 10A--switch with the one below it.
That unknown value fuse (perhaps 25A) to the right of the two 20As is for the radio and should only be 10A. Believe me when I say that the wiring in that circuit is NOT suitable for anything above 10-15A!!!
To answer your direct question, the power locks are in the CTSY/CLK circuit. That circuit is where you have a "7.5" fuse and it should be a 20A.
The fuse directly to the left of it should also be a 20A.
The far left 20A fuse should be a 10A--switch with the one below it.
That unknown value fuse (perhaps 25A) to the right of the two 20As is for the radio and should only be 10A. Believe me when I say that the wiring in that circuit is NOT suitable for anything above 10-15A!!!
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
One more thing:
That 10A fuse at the right side in the third (used) row up is supposed to be a 30A circuit breaker for the rear defog--the very same as the greyish metal thing you see in the top row of your pic.
That 10A fuse at the right side in the third (used) row up is supposed to be a 30A circuit breaker for the rear defog--the very same as the greyish metal thing you see in the top row of your pic.
Last edited by SwampeastMike; Apr 24, 2016 at 07:09 PM.
Thread Starter
Racer
Joined: Apr 2005
Posts: 364
Likes: 0
From: Schertz TX
I was thinking just that. Thanks for confirming. My issue is I have no power to the locks. The fuse isn't blown, but the previous owner had a security system installed and yanked it out before I got it. The electrical has been a challenge to get working. I have replaced almost all of the interior including a new dash. Nothing was working. Thanks for the help. I will change out the fuses to original and see if I can trace the flow to make sure it is original as stated in the books.
Racer
Joined: Oct 2006
Posts: 412
Likes: 1
From: St. John's Newfoundland
Clyde
