4LO ATP transfer switch madness

[Blubber22]

Beginning to lose it 😂😂 D40 2010

AMBER 4x4 light came on not long back, car would start showing 2wd then after 10 mins would jump to 4x4 amber light. Turn off and on again back to showing normal. Truck still operates normal going into 2wd, 4wd, and 4Lo. So I done some research and everything pointed to transmission sensors. Bought all 3 from Milner changed them and changed the fluid at same time. Turns ignition red ATP lights on. Sticks it to drive and 4Lo flashing. Still selecting 2wd, 4wd and 4lo fine. I removed neutral switch from transfer and manually pressed it and ATP disappears and 2wd shows as normal. 

Any ideas anyone …….. please ……. I’m begging aha