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Originally Posted by twofiftyseven
Performed both tests. They both have resistance ohms within spec and pull the correct vacuum when applied power to. The 4wd computer seems very confused; if I manually lock the front diff, transfer case etc and move the 4wd shifter into various positions, sometimes I’ll get solid green , sometimes solid green and orange other times just flashing or no lights at all.
One thing I’m confused about is how to manually lock the center diff/ how to have it supply power to the front axle but not be locked. What I’ve been doing is applying power to various pins on the electric transfer case actuator connector. It locks and unlocks. But I’m unsure if it’s splitting 50/50 power front and rear or applying power but using the differential to give power when needed.
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It's been a couple years since I had to test mine, but I looked at my EWD to refresh my memory. The transfer case actuator motor only uses pin 2 and 3 (green and yellow-black) to power the motor. Pins 4, 5, and 6 provide feedback to the 4wd ecu for the 4wd ecu to know when the transfer case actuator motor has reached the correct location for the corresponding 4wd engagement. Here's a link to a 2000 EWD in case you don't have access to one. If it were me, I would try checking the resistance of pin 4-6 at the transfer case actuator motor to the corresponding pins at the 4wd ecu. You might want to clean and check resistance to ground on pin 1 as well.
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2000 SR5 V6 Manual 4WD
https://www.toyota-4runner.org/3rd-g...biography.html
2000 Limited V6 Auto E-Locker Sold 3/2022
