Transmission will not go on reverse only first gear, codes P0891, P1775, P0731, P0732, P0841and P0846

Yes, but I did not understand it and because I have not seen the proof to confirm it, I was still insisting to find out. Now I have seen the affected circuit the work will now be easy and straight. Thank you so much for your assistance.

Wow! I am happy to announce to you that I have solved the vehicle problem. The problem is not from wire harness but a component failure, I look at this wire harness and saw it was still in its factory pack and that the wires are still new. Then I couple everything and started the vehicle, I shifted from park to Reverse and the engine revolution lower, I remove my leg from brake pedal but it didn't move, I shifted to "D" no sign of engagement at all. I scan it and pick P0891, P0652, P0846 and P0750. I cleared it, and started the vehicle again, shift only reverse and P0750 came back, so I loosen the solenoid/pressure switch assembly and I used diagram to identify the position of L/R solenoid pin7, I remove that L/R solenoid and put another one. I installed it and add up oil, I started the vehicle and shift to Reverse, removing my leg from brake pedal, it moves immediately, I shifted to "D" and I removed leg, it moved. I went to test-drive like 50km and I came back and scan, no trouble code stored. So the cause of P0846 is faulty pressure-switch not circuit problem. Thanks for your assistance and contributions so far.