02 rubicon problems wont move

5135 Views 5 Replies 3 Participants Last post by retro, Nov 2, 2017

3rdgens

Discussion Starter · Oct 29, 2017

so i have a 2002 rubicon 500. the motor runs and no parts are missing. the dash flashes -- where the gear selection should show up. D1 D2 ESP also flash (not a code flash). the atv wont move at all except for pushing in neutral. i started by trying to retieve codes which i think i got a code 5, then tried re intializing everything and it goes right back to the flashing. i removed the angle sensor and followed others steps on checking the resistance and it works, goes up to 2.11 k ohms and down to like .2 k ohms. i removed the shift motor and cleaned it, it spins with 12 volts but cant get the atv to send power to it. also with the shift motor out i turned the gear that moves the swash plate and noticed that the flat shaft that turns the angle sensor never moved, turned the gear atleast 4 roatations and doesnt move the angle sensor shaft at all.
im not sure if i should keep hoping for a sensor problem that i will find some day or i should tear that hondamatic out and check things for obvious problems internaly.

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wheelsquad

· #2 · Oct 29, 2017

3rdgens said:
so i have a 2002 rubicon 500. the motor runs and no parts are missing. the dash flashes -- where the gear selection should show up. D1 D2 ESP also flash (not a code flash). the atv wont move at all except for pushing in neutral. i started by trying to retieve codes which i think i got a code 5, then tried re intializing everything and it goes right back to the flashing. i removed the angle sensor and followed others steps on checking the resistance and it works, goes up to 2.11 k ohms and down to like .2 k ohms. i removed the shift motor and cleaned it, it spins with 12 volts but cant get the atv to send power to it. also with the shift motor out i turned the gear that moves the swash plate and noticed that the flat shaft that turns the angle sensor never moved, turned the gear atleast 4 roatations and doesnt move the angle sensor shaft at all.
im not sure if i should keep hoping for a sensor problem that i will find some day or i should tear that hondamatic out and check things for obvious problems internaly.

Welcome to the forum.

Since yours is the 1st generation Rubicon, with the problematic plastic carrier in one of the hondamatic bearings, that would be the most likely cause.

1) carrier goes out and takes out the whole hondamatic

Or

2) carrier goes out and plugs or takes out the oil pump

Or

3) oil pump goes out on its own before anything in the hondamatic

The hondamatic depends on good oil pressure to do its function.

So I recommend checking oil pressure per the service manual. Also, do you have any chunks of anything in the oil filter or screen? Start there for diagnostic purposes.

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wheelsquad

· #4 · Oct 30, 2017

3rdgens said:
thank you ttwheelsquad for the reply. i will have to check out what you said. you wouldnt happen to know what size adapter i need to check the oil pressure? i pulled the plug on the left side at the front and used the pull start to turn it over and it made a nice mess of oil on the floor. would the hondamatic being bad cause it to not reintialize tho? even without starting the motor or trying to get it to do anything the dash still flashes and the shift motor doesnt seem to be getting power to even try to do anything. i hope its not the hondamatic and ecm both went bad

Oh sorry I guess I misunderstood your not initialization problem. Have you checked the battery voltage lately? I've heard of weak batteries causing weird problems with ECM's and such.

I'm also not sure about the fitting size, but with some searching you should be able to find it. Here's a good informational read for you too: http://www.hondaatvforums.net/forums/repair-maintenance/76538-rubicon-hondamatic-rebuild.html

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wheelsquad

· #5 · Nov 1, 2017

3rdgens said:
thank you ttwheelsquad for the reply. i will have to check out what you said. you wouldnt happen to know what size adapter i need to check the oil pressure? i pulled the plug on the left side at the front and used the pull start to turn it over and it made a nice mess of oil on the floor. would the hondamatic being bad cause it to not reintialize tho? even without starting the motor or trying to get it to do anything the dash still flashes and the shift motor doesnt seem to be getting power to even try to do anything. i hope its not the hondamatic and ecm both went bad

I also forgot to mention earlier to check every electrical connection you can. One at a time. My hondamatic had the same display as yours one time. All it was was a loose connector.

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