1G 93 talon awd auto no overdrive .

[1SIC1Gb]

So my 93 awd w4a33 trans doesn't have overdrive. It's not the typical slipping when in od, this just doesn't even try. Has every other gear . It just stays in 3rd no matter if the OD switch is on or off. Switch is showing off or on correctly on the cluster . Just installed new end clutches just in case but no difference .

What wires do I need to be checking . I looked at a diagram and I cant figure it out. I see the 4 green wires coming off the cover where the end clutches reside but couldn't find them on the diagram

Thanks

 

[1SIC1Gb]

Tried to pull the codes but I need an analog multimeter. Would anyone happen to know which wires should have power/ground when od swith is turned on?

 

[1SIC1Gb]

It has a 2 plug tcu. I can't seem to find a good wiring diagram that shows the overdrive switch . Wanted to check the connection to the tcu.

 

[1SIC1Gb]

So I tan a straight wire from the red/ white on the ecm and ran it to the red/white on the shifter of button . Now it has od , oddly enough the OD works when the OD switch is off . Still better than before of coarse since it has od.