Fuse block 1974 Roadrunner troubleshooting

[flamesoldier]

Fuse block number 2,3,and 4 have power in off, all the others receive power after key is switched to on is this normal? My 1973 duster fuse panel doesnt have any power when key is off to anyfuse. Scratching my head.

 

[pnora]

Get a wiring diagram or FSM. No power sounds like a bad fuse link or wiring problem.

 

[QuickBpBp]

Can’t stand electrical issues but might want to change your user name from flamesoldier while addressing this!!

 

[davek]

go here and download Wiring – MyMopar

 

[flamesoldier]

The question is….with key off does number 1-8 supposed to have power or not have power, as example with test light, it lights up on 2,3,and4 all others no power. The. When key is switched to on, power is at all the fuses.

 

[davek]

on my 69/70 some are hot some are not when key is off. Same on my 74 challenger I had.

 

[flamesoldier]

on my 69/70 some are hot some are not when key is off. Same on my 74 challenger I had.

Thats what exactly im trying to find out thanks you

 

[flamesoldier]

Does anyone know what fuse numbers run what? The wiring diagram doesn’t show that

 

[moparmarks]

Yes part of the fuse block is battery hot and part is switched hot.

 

[davek]

does it look like this?

 

[flamesoldier]

does it look like this? View attachment 1406759

Yes it does

 

[Nacho-RT74]

If you look on bottom part of fuse box, will find two embossed male terminals. One says BATT the other one says ACC. The BATT terminal and the fuses row above it is allways powered. The ACC terminal and the fuses row above just powered in ACC ign key position.

Firts ones on top of both rows are diff, feeding certain equipment which doesn’t need to work while in ACC or BATT… seatbelt warning system, brake light on cluster for example from ign switch just in RUN… dimmered lighting network just when lights are on. These two are isolated from backing buss bars.

that’s how it works.

 

[flamesoldier]

If you look on bottom part of fuse box, will find two enbossed male terminals. One says BATT the other one says ACC. The BATT terminal and the fuses row above it is allways powered. The ACC terminal and the fuses row above just powered in ACC ign key position.

Firts ones on top of both rows are diff, feeding certain equipment which doesn’t need to work while in ACC or BATT… seatbelt warning system, brake light on cluster for example from ign switch just in RUN… dimmered lighting network just when lights are on. These two are isolated from backing buss bars.

that’s how it works.

That was exactly what i needed thank you

 

[flamesoldier]

Can someone just go over the underdash buss terminal #3,#4, and #20 doesnt have a color on the diagram

 

[Nacho-RT74]

Already replied about this diagram on another thread.