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I'm working on my brother in law's 2005 Honda Rancher TRX350FE. He said sometimes it would get stuck in gear but if he shut it off and went back the next day a lot of times it would go back to neutral and then work again. Gradually got worse until I picked it up to take a look.

When I first picked it up it had a #3 code for the angle sensor so I bought a replacement and put it on...still wouldn't shift. I noticed the old sensor would only turn so far before stopping & the new one would turn completely around...I thought I'd maybe got a bad one or broken it so I tried another one & still won't do anything. When I push the shift buttons it doesn't do anything at all.

I had a friend take a look at it...we put a wrench on the manual shifter shaft and it goes through the gears if you rock it a bit...should it have to be rocked? I thought maybe I should be able to shift it without rocking it (when turned off) but he said it felt normal.

So...I went back through the troubleshooting steps in the manual I ordered. If I shift it manually with the engine off & key on the position indicator shows the correct gears. I can't find any connections that look bad. I disconnected the ECU connector & I have continuity when pushing the shift buttons so they should be fine. The next step in the manual was to replace the ECU...so I did that & still no change.

I manually shifted into 1st and the button will shift it back to N...but only once. After that it won't do a thing. I pulled the shift motor plug apart and I'm not getting any power to it when I push the shift buttons.

I've seen the threads about the part that breaks in the front of the trans that you have to basically pull the engine to get to. Is that my next step? If something was binding should I hear it trying to shift?
Have you figured anything out?I just bought a 2006 honda rancher 350es FE and it shift fine into first and back to neutral but won’t go into second or reverse the only way to get it to go into second gear is to spam both up and down buttons for every gear but once in a gear it only wants to shift up and down between those gears. Before I bought the previous owner did it wouldn’t shift at all then he installed a es bypass and only let him shift in first. I cannot figure out what is wrong with it
 

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What you have is a TRX350FE (FE = 4 wheel drive with electric shift). What I don't know is if it equipped with ESP (Electric Shift Program). Since I know it's been monkeyed with and a "bypass" has been installed, you are on your own. I can provide you with a service manual in PDF and if you read it and understand what you read, you might be able to figure it out, but answer this; when the transmission shifts, does it display the gear it's in on the readout? If not, then that's the reason it only shifts up and down between adjacent gears - it has to know it's in 3rd before it will shift to 4th - otherwise the shift is not complete and you can only shift to the gear you were previously in.
 

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What you have is a TRX350FE (FE = 4 wheel drive with electric shift). What I don't know is if it equipped with ESP (Electric Shift Program). Since I know it's been monkeyed with and a "bypass" has been installed, you are on your own. I can provide you with a service manual in PDF and if you read it and understand what you read, you might be able to figure it out, but answer this; when the transmission shifts, does it display the gear it's in on the readout? If not, then that's the reason it only shifts up and down between adjacent gears - it has to know it's in 3rd before it will shift to 4th - otherwise the shift is not complete and you can only shift to the gear you were previously in.
Yes it shows what gear I am in when I take the bypass if displays code 5 and I’m keeping it out.
 
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