okay this is something wierd buts it confusing the hell out of me.. I was using the test light today and i noticed some of the fuses are always live. Than the ones that didnt light up i switch the key to on. and was about to get the test light to light up. so some fuses are always live. some are dead unless switched. okay i understand that. But i still had a couple that didnt light up. so i took the alligator clamp of the test light put it to the positive post of the battery and touch the fuses that didnt lite up at all and got them to light up.. Im totally confused here i thought fuses are always power source. someone explain this please.

 

I do not quite understand the post. Some fuses are on live lines and some on switched. That has nothing to do with the continuity of the fuse. Depending on where the fuse is in relationship to its switch, you may not always have current to the line and therefore fuse.

 

your pretty much saying the ones that dont light up at all maybe because the control device(switch/relay) isnt enegerized to allow current flow to the fuse correct?


but my main question is why is it that if i hook my test light to the positive side of the battery and touch some of the fuses i can get a couple of them to light up..its confusing because no ground goes to fuses. but yet the test light illuminate? that indicate a short but makes no sense because the fuse isnt blown.

 

the ground that the test light is registering is through the part that's connected to that circuit.

Think headlights, no power to the positive side but the ground is still connected to the other side of the bulb. The bulb's filament is a higher power load that looks like a wire to the test light.
this is the main reason why I never use a test light... they are ok for a quick check but anything more in depth and they will start driving you nuts.

 

sweet i ****ing love you man. this **** was driving me nuts.. greatly appreciated.