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Discussion Starter #1
:frown:

Thought I'd start a new thread of my own, just for the specific problems with the Honda ATV's which appear to be prevalant.

1. Code 6 - angle sensor. Many issues with these, replaced mine, problem is gone.

2. Code 12 - shift control motor (or circuit). I replaced the shift control motor, which after reading many forums, I understand a LOT of people do this as well and still have problems. Me too! Big surprise.

3. 4X4 is flashing 4 times, which indicates system voltage issue apparently? Has anyone had any encounters with this one?

Did I seriously pickup the biggest POS Honda in the world? After much reading online, I thought I was getting into one of the toughest and longest lasting ATV's in in the market.

I've di-greased most of the connections on the machine, and didn't see any obvious signs of corrosion.

I'm still blowing the 30amp shift control motor fuse, which leads me to believe there is some form of wiring issue, likely shorting to ground?

Does anyone have any recommendations or ideas?

When I start the machine, it goes right to the error codes, and I cannot drive it other than in limp mode. BRUTAL!!! Getting so frustrated with this thing.

Help, help, help, for the love of god ....
 

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Seems that I remember reading about faulty ecms and the dealers were picking up the tab. Cant be sure with out contacting the dealer tho. With 4x4 light flashing my guess is an ecm issue but thats just a guess.
 

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I agree with Saber and mud check the wiring first if you don't find anything then check into what saber was telling you.
 

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Discussion Starter #6
Hey guys - props for supporting a guy in need ! LOL. Really though, it's great that you support those with issues and less product knowledge than yourselves.

I used a multi-meter and traced the wires back per the troubleshooting schematic. Battery to ECM, ECM to the shift control motor, etc. I picked-up solid signal and the appropriate voltage to the ECM from the battery.

Could I really be the guy with a bad ECM? I've read dozens of forums where guys do all I have done (angle sensor, shift control motor, and ECM) and STILL have a dead ATV.

I found a line on a NOS (new old stock) ECM for around $100 shipped, which compared to the local dealer cost is a steal of a deal. I'm thinking of getting it just in case it is the ECM. I need to start plowing my driveway very soon, so I'm worried I'll be stuck without a machine.

Any other thoughts, comments, etc. would be appreciated.

I'm still concerned as to why I keep blowing the 30amp shift control motor fuse. For some reason the system is drawing in excess of 30 amps, but throughout the wiring system related to the shift control motor, all checked out. Baffled in Ontario.....
 

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Discussion Starter #7
Mind you I didn't check the wires going TO the fuse, just leading away from it through the shift control motor circuit. Shouldn't those wires come directly from a voltage regulator of some sort? Could this be why I'm having the 4X4 light flashing 4 times indicating a system voltage issue?

Thoughts/comments more than welcome!
 

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Discussion Starter #9
Just to be on the safe side I would check both sides.
I'll do that .....and I just ordered a new ECM.

So....IF I plug in the new ECM and go through the reinitialization process and the machine still gives me the error codes.....THEN WHAT?

I've read of this many times, and I'm scared that will be the result.

Fingers are crossed.....:r_c:
 

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Found some info...


 

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Discussion Starter #12
New ECM here....

I received a new ECM today, and was wondering if there is any risk of frying it if indeed my current one is pooched? Ie...is there a risk of an electrical current abnormality frying my new ECM?

I've done everything the troubleshooting calls for on the code 12. Replaced the shift control motor with a new one, traced all the wiring schematic and it checks out for that circuit. Now down the final path of ECM replacement.

If it isn't that....I'm really up s**t creek...what to do next???

Merry Xmas and Happy New Years to all, especially those that have helped out thus far.
 

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i have a 05 with the same problem throwing a code 12.i have replaced shift motor angel senser and all other stuff. the place i took mine said they had no idea what was wrong and couldnt fix the problem. said replace wiring harness and that may or may not fix the problem.has yours been alot of water?anything you find out let me know as i will with you
 

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2004 Ranchers are bad on electrical things.
 

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Discussion Starter #15
I have to wonder if Honda will take responsibility for any of this? I've been troubleshooting this eroneous code for weeks now, replacing parts and still no success. WTF???
 

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Discussion Starter #16
Another update.....

I've now replaced the angle sensor (yes; it's preloaded), and the shift control motor (along with checking the associated circuitry for voltage and signal) and just replaced the ECM. It's still doing the exact same thing. Flashing code 12, and the 4X4 light flashes 4 times. I am using the quad to plow snow still, but it's perpetually in limp mode so 1 gear forward and no gears backwards. It keeps kicking out of 4X4 and giving me the flashing light 4 times while in use.
It will intermittently find Neutral, but typically goes right to flashing code 12.

I have to wonder if it's a shifter position sensor or something similar? Oddly, my plow only works intermittently now as well. Still wondering if I have a short to ground somewhere?

Any other ideas guys? I'm about ready to sell this POS and buy a Yamaha or something......
 

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Just to recap did you reinitialize the computer after install?
 

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Discussion Starter #19
Tried, but cannot get it to go to Neutral. It just keeps flashing the 12 code, so cannot continue with the initialization......
 

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Is there a tool to manually shift on that model? Look in the manual. some have a manual shift procedure.
 
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