185 trans to 130 transfer wiring

[mudsurfv6]

tried googling it but can't find the right thing.

need to wire up my A343 VZN185 transmission & A340/3? KZN130 transfer case. 5 wires on the transfer & 6 on the transmission.
presume 1 extra for the centre diff that was in the 185 transfer. both electric engage 4wd.

does anyone have plug pin diagram picture things? join which wire to which? hopefully that simple.

is there a way to wire it so that I can have low 2wd aswell?

[ChurchurDan]

Is it you original transmission with the kzn transfer? Assuming you have the transfer with the 5 wire actuator on the back you can easily wire it with either a DPDT switch for manual operation or relays and use the 4wd switch on the gear lever.
The factory setup uses a switch on the transfer so when you select low range it automatically selects 4wd but if you setup your own controller you can have low 2wd.
Did you use the vzn extension housing or the kzn one? The extension housing has the trans speed sensor in it and they are probably different. I knon the vzn130 and vzn185 have different pulse's per revolution and when in low range the transmission wouldn't change gears.
I do have some notes on these at work if I can find them.

[mudsurfv6]

Is it your original transmission with the kzn transfer?

yep, 1996 vzn185 with a kzn130 transfer case, not sure what year.

Did you use the vzn extension housing or the kzn one?

the kzn130 because the front driveshaft is on the opposite side. the 185 one won't fit a 130 transfer.

The extension housing has the trans speed sensor in it and they are probably different. I knon the vzn130 and vzn185 have different pulse's per revolution and when in low range the transmission wouldn't change gears.

is that the thing on the output shaft on the transmission? because we looked at that and decided it wasn't going to be affected by the different extension, the sensors are in the trans. maybe we are wrong?

is this the black plug for that sensor? whats the other plug for?

these are the wires on 4wd engage thing at back. bottom plug 5 wires from transfer, other 2 from trans, a 6 plug & 2 plug.

where this plug go? on wires going past extension.

this plug at back into transfer case, should all the wires still be in that plug?

or is this a job for someone who knows what they are doing? that doesn't charge the earth.

[ChurchurDan]

I dont think you are going to get the 4wd working with any standard wiring as they look a lot different.
The pic with the sensor in the side with the black plug is the speed sensor and looks to be connected correctly, the last pic is the vehicle speed sensor and you will need all the wires attached to that to get your speedo going and to have overdrive.
I am not to familiar with the 185 series transfer case and i believe there are 2 different types so I am not to certain what the extra plugs are for but would assume they will not have a home to go to on your transfer.

The 5 wires coming out of the actuator are 2 for the motor and 3 for the limit switches, the motor wires are the 2 slightly larger ones. The switch on the side of the actuator is used to engage the front diff disconnect in its original application when the actuator engages 4wd. The front diff then has the switch to turn on the 4wd light. There is also a switch on the side of the transfer that engages when low range is selected and engages the actuator if low is selected without first pressing the 4wd button on the transfer gear lever.

I have seen on here someone had drawn a wiring diagram for either the 4wd actuator or a factory diff lock as they both work exactly the same electrically. The diagram I saw had 2 relays and a 2 way toggle switch, but if you use a third relay you can use the factory 4wd button. This may be the easiest way to get it working and if none of the 2 pin plugs on the spare loom activate the 4wd light check any wiring that went to the front diff.

[ChurchurDan]

This will work for you but if you replace the dash mounted lock-unlock switch with a 3rd change over relay you can use your factory 4wd switch on the 4wd lever. Everything to the left of the dotted line is the actuator.

[mudsurfv6]

thanks for that. I will try and make sense of it and see what I can get sorted.

[mudsurfv6]

whats this?

it goes into hole in middle of picture of 185 transfer.(below) it is the for the unused plug in photo 1 next to the black plug.

there is a screw in bung in the 130 transfer in same place, put in there? won't be easy to get to.

I can't find anywhere on the 185 transfer that the plug in photo 3 (hand holding) goes to, but looks clean inside.

[dvk-kp]

Is that the reverse light switch? or is that In The transfer?

[mudsurfv6]

or is that In The transfer?

that's the drivers side of the transfer case. it uses the blue plug in photo 1. the transmission would attach on right edge of photo. there is 2 that look the same directly on the other side that we have swapped over before it was put back in before coming up to yours. but not sure why that one wasn't swapped.

has your prado got it there? be on passengers side on that.

Is that the reverse light switch?

where is the reverse switch normally? on the transfer case or transmission?

[ChurchurDan]

Reverse switch is in the inhibit, gear position switch where the selector linkage goes into the transmission.
That is a detent switch, it will be for 4wd engaged or low range engaged for the 4wd ecu.

[mudsurfv6]

That is a detent switch, it will be for 4wd engaged or low range engaged for the 4wd ecu.

just been lying in bed thinking about this, can't sleep so thought I might as well be on here.

it won't be needed because the kzn130 transfer lever only goes forwards & backwards on the left side, and there is two of these on that side, the 185 transfer lever goes backwards on left, across to right then forwards again, and back again so would be pushing against this switch.
there would be a place for this switch to go on the right for when the 130 transfer case is in a 130 v6 auto which uses a manual engage 4wd and has the similar U shape movement in the transfer lever as a 185, except no centre diff.
its just not used in the 130 v6 manuals or the kzn130 diesels because they use electric engage 4wd.

so that one is sorted, tape it off, hopefully the 185 computer is happy with that. it goes into low.

the other plug I couldn't find a home for will be for the cat that we have cut out of the exhaust. so tape that off too.

didn't know which wire came from where in the speed sensor plug so if still doesn't work I will play around with wires until it does.

so that just leaves the wires on the 4wd actuator. the wires on the 130 transfer plug & the 185 transfer plug are the same colour, but in a different layout and different shape plug, and 1 less wire on the 130.
there is still an extra 2 wire plug for the 185 though that goes into the actuator. ??? centre diff???

[ChurchurDan]

The vzn130 transfer is hydraulic engagement and different to every other transfer case.
Was you original transfer a center diff type?
I still think it would be easier to make up the stand alone controller for the 4wd actuator and remove the factory 4wd controller which is in the left hand kick panel.

[mudsurfv6]

Was you original transfer a center diff type?

yeah it was.

I still think it would be easier to make up the stand alone controller for the 4wd actuator and remove the factory 4wd controller which is in the left hand kick panel.

it probably will be, might have to get an auto electrician to sort that, I hate electrics.