L40 Cab owners-- what is this elec. connector?

FatTire · Mar 11, 2017

This connector is hanging out to the rear of the door pillar, left hand side. That's the left rear side window behind it. Wires are black and yellow. The prong is bent, so it sorta looks like previous owner had something plugged into. Anybody recognize it?

Thanks,
Dave

sandyc · Mar 11, 2017

Just for grins, put a volt ohmmeter on it and see if it is 12 volt power. Also see if it is switched power. Previous owner may have had a fan or something like that.

FatTire · Mar 11, 2017

That's what I would normally do, but broke my leg a week ago. Suddenly my shop seems distant, and even simple tasks are a hassle. I was just thinking that if this is a factory connector someone might immediately recognize it. I can't picture any factory option that would mount there. The window defrost connectors are up on top.

RjCorazza · Mar 11, 2017

My 60 series cab has the same connector in the same place. I recall reading somewhere it was 12v on the ignition switch. I will test it tomorrow and follow up.

crk133 · Mar 12, 2017

It looks like a rear window defogger plug in. Do you have them on both sides?

FatTire · Mar 12, 2017

Its only on the left. The big rear window has a defroster, it is hooked up with wire lugs (not a plastic connector) on black and yellow wires. The same wire connectors on blk & yel are hanging out at the ceiling where they would connect to the side windows, but those windows don't have the defrosters. I wonder if that is not "normal"? Maybe I can ask my wife to find my DVM and bring the tractor closer to the house and I could see if/when it is energized. It would be fun just to sit in it. Brand new (to me) and I can't do anything, so frustrating.

aczlan · Mar 12, 2017

Our open station L3830 has the same plug in the back with the same colors. It is supposed to be used for a rear work light or something. It is switched to turn on when the key is on.

Aaron Z

FatTire · Mar 12, 2017

aczlan said:
Our open station L3830 has the same plug in the back with the same colors. It is supposed to be used for a rear work light or something. It is switched to turn on when the key is on.

Aaron Z

Hmmm... Wonder what I should use that power for? Maybe I'll just tap into those wires up near the dash for a rear view cam.

buckeyefarmer · Mar 12, 2017

I think it's for defrost. I believe mine has them.
When I added rear lights all the wiring was there.
These wires probably go to the overhead switch area, and there is probably power available there.

TripleR · Mar 12, 2017

FatTire said:
Its only on the left. The big rear window has a defroster, it is hooked up with wire lugs (not a plastic connector) on black and yellow wires. The same wire connectors on blk & yel are hanging out at the ceiling where they would connect to the side windows, but those windows don't have the defrosters. I wonder if that is not "normal"? Maybe I can ask my wife to find my DVM and bring the tractor closer to the house and I could see if/when it is energized. It would be fun just to sit in it. Brand new (to me) and I can't do anything, so frustrating.

Sure don't mean to derail this thread, but is your rear defroster inside the rear glass or applied to it? My 5030HSTC had wires in the glass and my 5740HSTC is applied so I can't use window tint.

Fallon · Mar 12, 2017

My L3200 had that plug under the fender & my new L4060 has that plug in the same place on the left pillar. I have the rear window defroster (dealer said it's actually a whole new rear window with the heater elements in it) & it doesn't use that plug. As the L3200 didn't ever have a cab option I'm pretty sure defroster can be ruled out.

I'm pretty sure it's just a spare accessory wire. I think Original 2 pin Power connector for VHF/UHF Power cords - Power source side | Powerwerx is the plug. Don't remember if that's the same plug or mating plug offhand.

aczlan · Mar 12, 2017

Fallon said:
My L3200 had that plug under the fender & my new L4060 has that plug in the same place on the left pillar. I have the rear window defroster (dealer said it's actually a whole new rear window with the heater elements in it) & it doesn't use that plug. As the L3200 didn't ever have a cab option I'm pretty sure defroster can be ruled out.

I'm pretty sure it's just a spare accessory wire. I think Original 2 pin Power connector for VHF/UHF Power cords - Power source side | Powerwerx is the plug. Don't remember if that's the same plug or mating plug offhand.

The one on our L3830 is that side (the female side).

Aaron Z

FatTire · Mar 13, 2017

TripleR said:
Sure don't mean to derail this thread, but is your rear defroster inside the rear glass or applied to it? My 5030HSTC had wires in the glass and my 5740HSTC is applied so I can't use window tint.

Yes, mine is on the surface too. Are your defroster connections at the top?

Fallon · Mar 13, 2017

FatTire said:
Yes, mine is on the surface too. Are your defroster connections at the top?

Haven't had a chance to look, but the window hinges are on the top & no wires dangle, so the connection must be up there in the roof.

RSF1952 · Mar 13, 2017

I also have a 4060 and asked the dealer about it when I received the tractor. The dealer could not
answer my question. I also purchased a shop manual for the 4060. I believe the plug is part of
the cigarette lighter circuit, and as such is controlled by the ignition switch . I have an electrical
accessory that I have used this circuit to energize and it works just fine. Also don't rely on your
dealer to buy the mate for the connector, it's not on their parts list. I bought a new connector set
at the former Radio Shack and replaced the whole unit to fit my need

TripleR · Mar 13, 2017

FatTire said:
Yes, mine is on the surface too. Are your defroster connections at the top?

To be honest I never looked.

steveky · Mar 13, 2017

Got the same plug on my L 3940 . Good to know

Couple of Achers · Mar 13, 2017

I was told by my dealer (old school ag dealer) that it is just an aux. power source for supplying power to things such as a 2 way radio, or other fancy monitors used in today's modern tractors.

aczlan · Mar 13, 2017

RSF1952 said:
I also have a 4060 and asked the dealer about it when I received the tractor. The dealer could not
answer my question. I also purchased a shop manual for the 4060. I believe the plug is part of
the cigarette lighter circuit, and as such is controlled by the ignition switch . I have an electrical
accessory that I have used this circuit to energize and it works just fine. Also don't rely on your
dealer to buy the mate for the connector, it's not on their parts list. I bought a new connector set
at the former Radio Shack and replaced the whole unit to fit my need

On the open station, there is a work light kit that will plug into that. From what I can see the Kubota part number is 3A011-75904 and Messick's wants $132ish for it.

Aaron Z