electrical nightmare

[80SeriesFan]

So the FL POWER 30 amp rectangular fuse blew, I replaced it and it blew a week later. Now it blows every time I put one in.

Tried to trace it down, to no avail yet. Any tips?
It is the fuse that controls the windows,seats,locks and I think some other stuff.....

Anyone know where it goes? It appears to be a blue wire from the back of the fuse block going into a huge wire harness.....

I need to get this fixed somehow cheap.

If buisness does not pick up I might be forced to sell my toy.....
entertaining offers.... it has factory lockers.... I really want to keep it but not sure I can do what I want with it if buisness doesnt pick up......

 

[landtank]

you'll most likely need a EWD to trck it down unless you can spot some aftermarket stuff that might have been installed previously and is now causing a problem.

 

[80SeriesFan]

Ewd?

 

[psfpilot]

EWD = Electrical Wiring Diagram, it's a factory publication that you can order to supplement the FSM.

 

[CJF]

Have you been using your A/C? Don't know if it was the fuse you're talking about or not, but a couple of folks have had a similar issue; turned out (I think) to be the A/C clutch coil shorting out.

If this sounds to you like a possibility, make sure the A/C is off, and try replacing the fuse one more time. If your lucky, it'll be fine as long as the A/C's off, and then will pop as soon as you touch the button.

Curtis

 

[80SeriesFan]

its the fuse to the right of the a/c fuse..... I am trying again to trace
it down..... it is tough.... I thought mabey someone knew where it went so i could see if it was a short in the wire itself or what.....

somehow I need to get it done, hotwiring my windows all the time is getting old......

 

[CJF]

its the fuse to the right of the a/c fuse

The fuse I'm talking about is NOT the A/C fuse; it's one that controls most of what you're talking about (the window isuue is what made me think of it) that for whatever reason pops when you turn on the A/C.

Curtis

 

[dfmorse]

80SeriesFan;

To the rescue ;

I've just put together a chart that may help in trouble shooting fuse problems. Keep in mind I'm still working on this work of art. My web site will have 3 pages of info, pics of the panels and 2 tables of info.

http://homepage.mac.com/dfmorse/FuseChart/index.html

I hope this is readable on your browzer . I've checked it with Safari, FireFox and IE.

Look down the right hand column for SYMPTOMS and correlate the page numbers to look at in the EWD [Electrical Wiring Diagrams; part no. EWD189U for 1994 Cruiser] . This book (part no.) of diagrams may be different for your year of cruiser. 1993 & 1994 will be very similar.

This chart will give u ideas where to start; in ur case, this is not going to be easy work. The fuse # = 16 in my pics.

Let us know what u do with this trouble shooting. Also let us know if u can read and follow my web site, its still under construction.

...

edit: find and disconnect the connector for the power seats, that should help with finding problem; the same goes for the overhead moon roof. There are connectors behind the overhead light system. Buy the EWD for this cruiser...

 

[CJF]

Here're the threads I had in mind:

https://forum.ih8mud.com/showthread.php?t=98844&highlight=fuse

https://forum.ih8mud.com/showthread.php?t=90184&highlight=cluster

Maybe/not what you're dealing with.

Good luck,

Curtis

 

[80SeriesFan]

ok I have checked if it blows with the power seats unhooked AND the ac off.... yes it blows.....

I can say the pages load fine DF , and yes I am sure it is #16 ..... now if only there was a online manual for the wiring .... heh ....

Anyhow gonna have to camp for a few days so I am going to tear apart the dash tommorow......well the underside anyhow.... and if it kills me I will trace the wire down and figure where the stupid thing is shorting..... I really have no choice.... I need the windows... the seats would be nice too....the locks I could wait on ....

Any more advice I will be up for a while and check mail before leaving tommorow morning to camp for a few days.

 

[dfmorse]

80SeriesFan;

I am going to start guessing here. Since the left drivers door is the most used door in the cruiser, there could be a short in the leads or the master control switch system.

On the left hand side of the cruiser, near your left foot, is a unit called R/B No. 1 [Relay Block No 1] that has 6 relays (or what ever) mounted on this panel. The top left is the Defogger Relay; next to the right is the Power Main Relay. This relay is common to your problem.

Just for grins, if u get into the cruiser; you've installed a new 30 amp fuse; and u turn the ignition ON. Is the fuse #16 still ok?







Assume fuse is ok; If u pull this Power Main Relay, is fuse still ok?

Does fuse the fuse blow when this relay is plugged in?

Wait, I need to know if this fuse blows when ignition is turned on or when the windows are operated. What I'm sensing, is this fuse blows when ign is turned on, Right?

The point here is that the afore mentioned relay controls power to major motor systems (window, etc) . When the relay operates, its SPST contacts run juice from the 50A AM1 fuse (#24), thru the fuse #16, thru a blue lead to the "PowerMainRelay", thru a Blue/Black stripe wire to the window motor control circuits. Need to find where this short which blow a 30A fuse is...

If the "PowerMainRelay" is removed, and Fuse#16 is not blown, then problem must be in the window motor areas.

Otherwise, the main BLUE lead from Fuse Block Pin#4 is shorted somewhere.

That should be enough crap for a while..

Edit 2;
I must learn how to read someday.
Pull the relay , "PowerMainRelay", and install a new fuse. If it blow, the blue lead from the fuse block F13 is shorted to ground.

I must be confusing u by now!

...


...

 

[80SeriesFan]

heh, thanks , I will try that.... I do know that it does blow as soon as I turn the key on, well a second or two after anyhow......will report back on what it does after that test.