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I have a 2001 Honda Forman rubicon 500 and it is flashing D1,D2 and ESP while driving. It has no power in reverse and putt putt putts in reverse.
I did the code thing and it flashes all D1, D2 and ESP twice then break then twice again so I replaced the speed sensor with no luck.
Checked the connector for the speed sensor and it looks good with no corrosion
Help need some guidance or ideas.
Tks,
Matt
 

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Try resetting the ECM and go from there. I had that on my 2003. Took it to a Dealer and 1st time they said loose/corroded connector. It worked for a few miles. Took it back to the Dealer and they replaced the angle sensor. Problem came back. This was over two years as my Rube stays at my Camp 8 hours away most of the year. Tried a new dealer this past fall. They replaced the ECM and properly indexed the angle sensor. 100 miles later no issues. I also had them adjust the valves which resulted in a much improved starting routine.
Zero out the ECM by resetting it and then take notice of the codes you are getting. I had an 11 then a 10. Also put dielectric grease on all connectors (lightly), If you have a service manual go through the troubleshooting procedures to narrow down the codes. Lots of You Tube videos on this. Good luck.
 

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Just be aware that first year Rubicons have known transmission failures. I know this since I own one and went through lots of troubleshooting, hoping it was electrical. In the end it needed over 2 grand spent to get a new Hondamatic for it to run properly. Since newer quads are so expensive, it was worth it since the Honda is a great machine and wasn't worn out. Hope you find a fix and it doesn't break the bank!
 
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