LTX1040 keeps blowing fuse when I connect battery

[skyline0964]

I have an LTX1040 that will blow the 20A fuse the second I connect the battery. I'm trying to get my girlfriends sister tractor running. Can anyone help me diagnose this? I'm at the point of pulling my hair out. I keep getting 12v from the fuse holder even with the key out of the ignition. Meaning there is a short. I checked with the ignition switch unplugged, still 12v. After removing the jumper wire that the small engine shop added the tractor now doesn't get power and just blows fuses. They used a jumper wire from the selenoid to the ignition switch. I reconnected the wire that's going from B on the ignition switch to the fuse holder. Any help would be highly appreciated.

 

[StarTech]

I keep getting 12v from the fuse holder even with the key out of the ignition. Meaning there is a short.

No it don't as that part of the circuit is live all the time according to the wiring diagram you posted.

Now that green wire was not even supposed to be connect were it was connected. You cant ground and hot connect at the same point as that is a dead short.

 

[skyline0964]

No it don't as that part of the circuit is live all the time according to the wiring diagram you posted.

Now that green wire was not even supposed to be connect were it was connected. You cant ground and hot connect at the same point as that is a dead short.

I dont know much about the wiring as you can tell. I already removed that green jumper wire that's not suppose to be there. I'm honestly lost.

 

[Mower King]

I dont know much about the wiring as you can tell. I already removed that green jumper wire that's not suppose to be there. I'm honestly lost.

Yes, a wiring problem can be tricky to find. If you can't read a wiring schematic / diagram....i'd say find another mower like yours and take pics of the wiring.

 

[StarTech]

I dont know much about the wiring as you can tell. I already removed that green jumper wire that's not suppose to be there. I'm honestly lost.

Don't feel bad as many of the techs that I deal with don't have a clue about wiring either even when they have access the correct wiring diagrams. It probably why 3/4 of the wiring reworks that I do are tech introduced problems.

 

[Richie F]

I have an LTX1040 that will blow the 20A fuse the second I connect the battery. I keep getting 12v from the fuse holder even with the key out of the ignition. Meaning there is a short. I checked with the ignition switch unplugged, still 12v. After removing the jumper wire that the small engine shop added the tractor now doesn't get power and just blows fuses. They used a jumper wire from the selenoid to the ignition switch. I reconnected the wire that's going from B on the ignition switch to the fuse holder.

I had to edit your original post to understand this more.
20 amp fuse blows when connected to ignition switch, correct ?
Unplugging the ignition switch and the fuse doesn't blow, correct ?
The green wire you showed is a ground. The only reason it would be on the starter solenoid is if that solenoid needed an external ground for it to work.
Your wiring diagram doesn't show a ground to it, but, the part number on the diagram shows it's a 4 terminal solenoid.

The orange/white wire is the correct wire from solenoid to ignition switch.
Also the green ground wire is factory and the correct length to the starter solenoid.
If you are capable, unplug the ignition switch, use a jumper wire to just the "B" on the ignition switch from battery positive.
Using a test light see what terminal has power to it with the ignition switch in the off position.
If you can do this and see where the power is going thru the switch in the off position report back.
The green ground goes to safety switches, headlights, dashboard (delta monitor) and a module which is on the top of the ignition switch, that I can see.

 

[skyline0964]

I think it'

Don't feel bad as many of the techs that I deal with don't have a clue about wiring either even when they have access the correct wiring diagrams. It probably why 3/4 of the wiring reworks that I do are tech introduced problems.

Found my issue. No more blown fuse, starter turns over too.