Fuse block/ fuse question

[dheavychevy38]

On my 87 k5 I have a massive draw on the electric system. I have tracked it to be the circuit breaker in the fuse bock listed pwr. I have check some wiring diagrams but haven't been able to figure out what this runs. The only thing I have noticed is my door locks don't work. Does anyone know what this actually runs ? I belive it's the 3rd or 4th fuse on up on the right side of the fuse bocks. Thanks in advance Denny

 

[dhcomp]

On my 87 k5 I have a massive draw on the electric system. I have tracked it to be the circuit breaker in the fuse bock listed pwr. I have check some wiring diagrams but haven't been able to figure out what this runs. The only thing I have noticed is my door locks don't work. Does anyone know what this actually runs ? I belive it's the 3rd or 4th fuse on up on the right side of the fuse bocks. Thanks in advance Denny

You have a manual? The factory manual will give you some indication.

Other than that, the repair guides at autozone.com have full wiring diagrams in them. Trace the wiring diagrams.

 

[dheavychevy38]

No I don't have a manual. I tried the ones at autozone.com But haven't had much luck. They don't go far enough indepth.

 

[dheavychevy38]

Well I went over to my chevy dealership and they still had a wiring book. This fuse is supposed to run the door locks and rear window.