[K91]

I have an issue with my Rancher that is driving me crazy! A few months back, my buddy was riding one of my 14’ Rancher’s and hit a tree stump on the left side of the quad going about 10 mph. It jolted him and the PS light came on which ultimately rendered the power steering non existent. I parked it over the winter and figured I would get to it one day.

Fast forward to now, I’ve spent the last two days tearing into this thing, got the code 23 Torque Sensor low/high voltage, rapid change and attempted to erase the code. I have not had any luck with erasing the code by following the manual instructions or disconnecting the battery.

I conducted all of the electrical tests per the manual with no luck.

In addition, I took the EPS ECU from my other Rancher (Which is in fine working order) and put it on the disabled one. No luck there either. The PS light just stays illuminated and power steering still not working.

Anyone have any insight on what could be going on here or dealt with a simular issue? Any input, other than “You should have bought one without PS stupid” is much appreciated ! Thanks.

 

[ktriebol]

I'm thinking that the jolt that the power steering unit received when it hit that tree stump may have damaged the torque sensor. It might need to be replaced. Does the service manual show how to test the torque sensor?

 

[retro]

You got a good clue on where to start as ktriebol mentioned! The FSM covers code 23 diagnosis procedures well.

Chances are, something got bent and/or twisted when the bike run over that stump! I'd suspect that the steering stem might have gotten twisted, either the shaft itself, or at a spline/component joint. It could be internal to the PS unit (hence the torque sensor code 23 clue that you got!) or external.

Also look the control arms (upper & lower A-arms) over very closely. If any of the frame brackets and/or A-arms got bent, twisted or pushed back, the wheel alignment (castor, camber, toe) will be way off. That factor alone could throw a fatal code which causes the EPS to shut itself down. The torque sensor and ECU can't deal with bent suspensions/steering & having wheel alignments way out of range.

Keep us posted if you can... we all need more practical experience on EPS systems... new members sharing info helps us all a lot!

Welcome to the forums!

 

[K91]

You got a good clue on where to start as ktriebol mentioned! The FSM covers code 23 diagnosis procedures well.

Chances are, something got bent and/or twisted when the bike run over that stump! I'd suspect that the steering stem might have gotten twisted, either the shaft itself, or at a spline/component joint. It could be internal to the PS unit (hence the torque sensor code 23 clue that you got!) or external.

Also look the control arms (upper & lower A-arms) over very closely. If any of the frame brackets and/or A-arms got bent, twisted or pushed back, the wheel alignment (castor, camber, toe) will be way off. That factor alone could throw a fatal code which causes the EPS to shut itself down. The torque sensor and ECU can't deal with bent suspensions/steering & having wheel alignments way out of range.

Keep us posted if you can... we all need more practical experience on EPS systems... new members sharing info helps us all a lot!

Welcome to the forums!

Yes, I agree, at least that’s what the code is. Funny thing is, I checked the continuity on my other Rancher’s EPS and it read the same. I’m fairly sure the torque sensor is inside the EPS, so no way to isolate it....I think...
I will give it some time and may give in and take it to the dealer. Once I do, I will give an update of what the issue is. I have searched high and low online and there are not many of these units busting, so I guess that’s a good thing! Thanks for the replies guys, Matt