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@ATC4ever I replaced the shift motor recently, but just to check my wife has the same bike so I took her shift motor off her bike and tried it on mine and it does the same thing. 

@TBRider I have replaced everything with Honda parts.

Could it have low oil pressure? How do I check it?

I bought the service manual before I pulled the motor out, but during the re-assembly process I broke the electrical connector off the solenoid assembly B and the solenoid assembly linear so I bought a new ones and installed them. Is there any adjustments that need to be made to the solenoid assembly linear (Picture)?  I also removed the valve body and cleaned it out. Could the clutches be sticking and need to be replacd? 

It is a DCT, 2021 Rubicon Deluxe.

I tried it with the emergency shifter and it does the same. 1st gear is good, I try to shift it to 2nd (no change). When I shift it electronically it displays 2nd but wont shift then I shift to 3rd and it will shift really hard. Then no 4th or 5th.

I have a 2020 Honda Rubicon with Electric shift and it will only shift into 1st and 3rd gear. I rebuilt the motor a few months ago and had this problem so I completely disassembled the motor again to make sure I had all the gears/washers ect. were all in the correct order. Me and my buddy double checked everything and it looks correct but I am still have the same problem. Does anybody have an idea of what could be causing this? Thank you in advance.

@Cory you were correct, the shifter motor went out. Me and my wife have the same bike just different colors so I swapped out the shifter motor with hers and it works perfectly. i have the new one on order and it should be arriving today. Thank you and @toodeep for your help!

@toodeep thank you.I will start looking tomorrow!

@Cory thanks! I will look it up.

@Cory thank you…do you happen to have the part number?

@toodeep I was driving and the rpm’s just went up and the bike started to slow. I looked at the display and is was just a dash. I stopped but the bike was still running. I tried to shift it with the buttons but it would not do anything. So I turned off the bike and it would not start back up. So I brought it home checked the battery and it looked good but I charged it overnight. I got up the next day and still nothing so I got the manual tool and was able to get it into neutral. Then I was able to get the bike started but when I tried to shift it into drive with the buttons the green “N” would disappear and then return. So that is where I am stuck…

@Fishfiles thanks for the help!

Did you ever find a solution to this problem. I am having the same problem.