LJ71 / 78 Auto solenoid wire pin out

[Big]

Not sure if anyone has these but I need the 3 wire pin out for the LJ71/78 trans ? I have the selector sw but cant find the solenoid wiring to say which has 12v , S1 and S2 .. can anyone help ? Ta or colours ? there is only 3 wires that go to the top of the connector on the trans.. so guessing +12v , S1 , S2 help..lol

[ChurchurDan]

assuming it is an A343e there are 3 solenoids in there, They are earthed internally and get 12v from the ecu to switch them on, the third solenoid is lockup.

[kbushnz]

The auto is ECU controlled so it doesn't take an input directly from shifter...
Unless you are manualizing it...

here is some info on the auto for you.
http://www.autoshop101.com/forms/h16.pdf

Or if you are trying to manualise it here is my attempt at it.
http://www.mediafire.com/view/i4p7hbbpi ... sation.pdf

[kbushnz]

Here is a pic of the plug.... You can work out from it which one is what

[Big]

Here is a pic of the plug.... You can work out from it which one is what

jzz30_a340e_sol_wiring.png

That's the one.. cheers.. interesting though.. the valve body doesn't take a 12v feed like the lexus one does.. so S1 S2 and od S3.. sweet as.. thanks a mill

[kbushnz]

I think the Lexus ones run 4 solinoids one is for pressure regulator. The 3 solinoid units have a cable which does the line pressure. So maybe the 4th one needs a 12 v supply?

There is a 12v supply to the position switch.

[Big]

I think the Lexus ones run 4 solinoids one is for pressure regulator. The 3 solinoid units have a cable which does the line pressure. So maybe the 4th one needs a 12 v supply?

There is a 12v supply to the position switch.

I got 3 sol + 2 x 12v feeds for the valve body plug + selector sw which has it's own 12v feed i'll take a picture
this is the plugs I used for the lexus trans

this is plug pinouts

and

si you can see there some differences..
ALso S4 was a none event.. had no valve.. as it had the cable pressure one and the pen diag was the pinout for the selector sw..looking down on the plug..

[kbushnz]

Have done a search of the net, some auto's also had a speed sensor in them and you ended up with a 6 pin plug as opposed to the 3 pin...
The Lj and KZJ have the speed sensor in the adaptor between the auto and the transfer case... so there is a separate plug.