3L30 lock up control

[Hangar5]

ok 2000,  that is very different , drive line, the 2000 has wider frame rails so lots of changes there generation 1 to 3,  
in 1966 (gen2) they changes splines on the rear of the transfer cased, but you have no such case. not sure what changed  on all 2wd, never seen one, but did convert one to 4wd.
yes, it does matter, the 2000 has no 3speed TCC relay,   and does drive, from 2.0L ECU to the transmission.
the 4 speed is fully electronic box,  it is NOT a hydramatic like 3L30, it a 100% solenoid controlled valve body in the 4speed.  the  3L30  (th180) is a 1975 early transmission .
yes one can make a box with say and ARM card or Arduino and program it to shift the box, based on RPM/load/speed. just like the 1989 does.

2000 tracker has 1.6L or 2.0L engine and only 4speed auto (electronic) and 5speed and no 3speed,box.  they phased out  the 3l30, long ago. and no flexplate to crank shaft parts.
2000 vitara  2L and 2.5L v6  
2000 GV has all three engines G16, J20 and H25
and all 3 have no 3speed BOXES , then.
The PCM on all 3 have 12 AT box connections,  PRNDL (6 wires for this alone and 3 solenoid wires. and speed sensors and more the 3rd solenoid is TCC lockup.)

the 2000 only has the 4speed, PCM shifted, transmission. fitting up the old 3sp to that IDK about the flexplate, nor if the TCC output of the PCM would work on the 3speed.
the PCM cant work at all 2000 , it knows of no such box. it only knows 4speed and the PCM does all the shifting.
So it will not send TCC signals out, to any 3SP, due to all inputs to the PCM (AT pins) are reading wrong.


here is the 3L30 lockup rules, (ECU firmware this is) last one built is 1998,
the ECU knows weight car too,  2doors are 3speed, so 2000 lb car is possible  (kite light)
The ECU knows, load,speed (VSS) and engine RPM (tranny input RPM to clutch)
as you can see it is non trivial how this works , for one silly white wire, might seem?
no 2000 car has this trans. + the axle ratios are not the same for 3 transmission.  so if that is wrong the brain (ECM) shifts the TCC wrong, or if 4speed gets them all wrong.

The Aisin 4spd may turn out to be the logical route.