72 GS, No Pwr windows,pwr door locks, turn sigs etc etc

Ok I searched and checked previous threads and found 1 thread(2018) where the cruise control lead was causing issues for the members' turn signals. Just about same scenario as mine but I do not have cruise. Been driving car on and off for about 3 weeks since weather turned nice. Went to take out for ride on Sunday and when I started it I noticed my seat belt buzzer would not shut off unless I moved seat belt about 5-6 inches from retractor. If I buckle seat belt the buzzer goes off then my seatbelt warning light lights up(have 72 with gauges)and stays on(only in drive if any other gear Park, Neutral or Reverse it stays buzzing constantly. So I checked fuse and of course its blown. So I checked manual and decided to check my windows, reverse lights since they are same fuse and they do not work. Since I dont have AC off course my drivers side window is stuck open. I do not have a tcs solenoid.

Replaced fuse and when I turn key it blows right away. I disconnected the rear defogger,turn signal switch, back up lights, kickdown switch, power window circuit breaker(40 amp) and seat belt connections one at a time and still blowing fuses. Getting hard to find fuses here in stock at local autopart stores.


Any ideas. Been working late and messing with car in evenings but with 2 fake knees its not fun getting on ground playing with this stuff. At least wife helps me up from floor of car.

I did not check window relay yet. Could that cause a short if stuck closed. I am not an electrical expert but will try anything, once twice or however long it takes.

Thanks in advance.

PS I usually check the forums in the late evening, so I will reply then.

 

Take a look at the wires in the door jamb(s) .

 

Larry, I did do that guess I will go over again this weekend. Matt, that is one place I did not check, will do that over weekend also. Thanks for replies

 

Ok, at wits end. Everthing is disconnected at neutral park switch except the the starting wires--disconnected the back up and seatbelt warning at the NSS. Unplugged rear wiring harness at back bumper. Wires look good going through door jamb. I also disconnected hot battery lead which feeds power window relay so I figured since I did that I don't have to remove kick panel to check relay since that is what powers the relay and the Y connect at the ign fuse tap(feeds rear defog and pwr window relay) was also disconnected which also goes to relay so I figure there was nothing else going to door that be hot. Unwrapped wires under hood that comes from fuse block and all look good. So only thing left is the fuse block so I will take that out tomorrow but if wires are good on hood side then I am lost. Might end up taking to shop unless you folks have any other ideas.

thanks

 

Just thinking — could it be the neutral start switch (nss) even though though the back up and seat belt warning is disconnected. My shop manual is working overtime this weekend.

Thanks

 

just wondering how you solved your problem,seems my power windows are causing my fuse problem.

 

If you're sure it's the window, look for a pinched or grounded power wire in that circuit to the windows (including the switches). If you have power seats, they are most likely on that circuit, too.

To save money on fuses, I disconnected the battery and removed the fuse. Then hooked up my meter between the hot side of the fuse and a good ground. With the meter set on continuity, so it beeps when you have continuity, turn the key to the on position and start unplugging things. When the beeping stops, you found the offending item. If you've unplugged everything and it still beeps, the problem is most likely in the dash harness somewhere.

Finding the cause of the blown fuse can be very, very frustrating and time consuming.

 

I took it to 2 local shops that are supposed to be good at electrical issues, in fact that is all one shop does and both told me I needed a new fuse box!! I said BS to that and retraced everything I did to my car in the previous month. I had replaced the passenger side valve cover gasket about a week earlier and some how I pinched a wire that was out of the harness under the valve cover. I took valve cover off, seen the pinch and discolored wire where it was grounding out and fixed. Everything worked fine afterwards. So much for the pros--I even provided the wiring schematics from the 72 GS manual and both said it was fuse block.

HTH