Need help with electric, and winch.

[Db0y]

Well, i have an 83 k5 (Originally thought it was an 82 lol) with a 350/700r4 and dual batteries, that doesnt have power going to the cab, i have the headlights, and blinkers working but the horn, cig. lighter, dome light, power windows and locks aren't working.
i dont know what to do because it's my DD and i need most of them lol.


And for the winch, it is wired to the second battery which is brand new, the winch is Ramsey DC200r 8000lb, but i think its older than the blazer because my grandpa had it on his 72' when he bought it new lol.
But the winch seems like it isn't getting any power or wanting to move.





so does anybody have any ideas of what could be wrong?

 

[Fordum]

That one may be impossible to figure out online. No way to know what has been done to the electric system.

But, I'll give it a try.
First check the grounds for both batteries. If the winch is not working, then that may be a clue as to the lost power in the cab.
The PO may have split the electrical system and be letting the cab run off the winch battery.

Then, check the fusable links from the starter up. They are the red wires hooked to where the battery hooks to the starter solenoid, and supply power to the entire truck.

They will melt internally and kill power before bad things happen elsewhere, but don't always look bad.

Also trace the positive wire of the winch battery to see if its going anywhere besides the winch.
If its dead and is supplying part of the truck, it might crank and run but not have power to the cab.
Also look to see how the winch battery is hooked to the alternator. There may be a small box with heat sinks and three terminals involved.

If so, it may have a blown diode.

 

[Russell]

Check your fusible links! There are two primary power feed wires coming from the starter terminal on your truck. Right at the starter there is a special type of wire that will burn up if too much current passes through it (fusible link). You can tell they are bad simply by giving them a gentle tug. If the link is burnt then they will pull apart. You can also disconnect the junction block connector at the fuse block and use a multimeter to check for 12V on the blades of the two big red wires going into the cab to make sure power is making it there.

If there is power at the junction block, then you need to have a look at your fuse block and make sure that all the fuses and the two circuit breakers are good as well as look for evidence of burnt wiring.

Your winch is most likely having a problem with the solenoid pack. Do any of the solenoids click when you try to move the winch? Have you checked for good supply voltage at the solenoid pack and coming out of the solenoid pack?

 

[Db0y]

That one may be impossible to figure out online. No way to know what has been done to the electric system.

But, I'll give it a try.
First check the grounds for both batteries. If the winch is not working, then that may be a clue as to the lost power in the cab.
The PO may have split the electrical system and be letting the cab run off the winch battery.

Then, check the fusable links from the starter up. They are the red wires hooked to where the battery hooks to the starter solenoid, and supply power to the entire truck.

They will melt internally and kill power before bad things happen elsewhere, but don't always look bad.

Also trace the positive wire of the winch battery to see if its going anywhere besides the winch.
If its dead and is supplying part of the truck, it might crank and run but not have power to the cab.
Also look to see how the winch battery is hooked to the alternator. There may be a small box with heat sinks and three terminals involved.

If so, it may have a blown diode.

Thanks for the reply.

I've already checked both grounds and they were solid.
And I know that the cab power is hooked up to the winch battery because i had power in the cab when i didn't have the second battery yet.

The winch cable just goes straight from the winch to the battery.

It just happened this morning, I had power in the cab and the winch last night, and this morning no power...

 

[Db0y]

Check your fusible links! There are two primary power feed wires coming from the starter terminal on your truck. Right at the starter there is a special type of wire that will burn up if too much current passes through it (fusible link). You can tell they are bad simply by giving them a gentle tug. If the link is burnt then they will pull apart. You can also disconnect the junction block connector at the fuse block and use a multimeter to check for 12V on the blades of the two big red wires going into the cab to make sure power is making it there.

If there is power at the junction block, then you need to have a look at your fuse block and make sure that all the fuses and the two circuit breakers are good as well as look for evidence of burnt wiring.

Your winch is most likely having a problem with the solenoid pack. Do any of the solenoids click when you try to move the winch? Have you checked for good supply voltage at the solenoid pack and coming out of the solenoid pack?

I'll go check the fusible link when i get out of class.

and i haven't checked the solenoid pack yet, but it does click, just wont move.