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

We knew this about 10 posts ago. You need to remove the cover on the harness and check the wires manually.

Roy

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.

Good find.

Glad it works.

Roy