Sportsman 500, Radiator Fan Keeps Running, Drains Battery???

[S.D. Ice Angular]

Hello, HELP!!!!!

I have a 2005 Sportsman 500; I just moved it from the garage to the shop in the backyard. I went out a few hours later and “DEAD”. OK I thought I was a moron and just hit the kill switch and not the key. I hook up the battery charger to it and the cooling fan starts immediately. It is 60° F at best. This should not be running, it draws so much juice the starter won’t engage it just spins.

Now this appears to be a stuck thermosensor, but why would it switch on its own with the machine not getting hot enough to even run the fan when I moved it.

Anyone else have a similar experience??

Any Ideas??

Thanks for any help you could provide.

S.D.

[Macgyver55]

Hopefully its just the fan relay that stuck. That would be nice, but more likely the ECM is bad, I have run into a couple of those.

Just remembered...if you have one of these there was a recall for the ECM

Check to see if yours is in this group.

Year -- Name-- CC-- Model

2005 SPRTSMN 500 A05MH50AB

2005 SPRTSMN 500 A05MH50AC

2005 SPRTSMN 500 A05MH50AG

2005 SPRTSMN 500 A05MH50AH

2005 SPRTSMN 500 A05MH50AL

2005 SPRTSMN 500 A05MH50AT

[S.D. Ice Angular]

Thanks Macgyver,

Can you tell me where I can find out what Model I have?

I can find the VIN Number, Do I have to dig out my paperwork??

Thanks

S.D.

[Macgyver55]

As far as I remember the model and serial numbers are printed on a decal attached to the front side of the radiator.

They also recommend that consumers should disconnect the negative (black) battery cable from the battery when the ATV is not in use due to the chance of a fire. (if it is an affected unit)

[S.D. Ice Angular]

Is there somewhere I can look to find out the if there is a recall on the specific model.

Or can I contact Polaris to see if my VIN is under the recall.

Thanks

[Macgyver55]

If you can find it here are the recalled ones. Otherwise a quick search will get you to a site that tells them all.

Models Affected Model Number(s) Serial Number Range

2005 SPORTSMAN 500 A05MH50(AB)(AC)(AG)(AH)(AL)

4XAMH50A*5A

343334 - 343373,

350342 - 351590,

355130 - 355835,

358431 - 360330,

362765 - 365588,

373208 - 373807,

378452 - 380569,

600301 - 600800,

605111 - 606260,

609111 - 609665,

612059 - 612811

4XAMH50A*5B

404297 - 404796,

407877 - 408556,

411833 - 412332,

415200 - 431444,

675381 - 681370

Polaris dealers sold these ATVs nationwide from August 2004 through February 2005 for between $3,799 and $7,699.

Consumers should contact your Polaris ATV dealer to schedule an appointment for ECM replacement. Polaris has notified registered affected consumers directly about this recall.

Consumer Contact: Call Polaris at (800) 765-2747 between 8 a.m. and 12 midnight ET everyday, or log on to the company’s Web site at www.polarisindustries.com

The recall is being conducted in cooperation with the U.S. Consumer Product Safety Commission (CPSC).

[tomfromblaine]

my buddy had to have his ecm replaced last year during duck hunting, exact same thing happened. It's just a plug in unit, you may be able to save yourself some labor costs.

Tom

[Dave S]

my buddy had to have his ecm replaced last year during duck hunting, exact same thing happened. It's just a plug in unit, you may be able to save yourself some labor costs.

Tom

Should be no labor cost if it's part of the recall.

[tomfromblaine]

oopps I forgot he said it was an 05

[S.D. Ice Angular]

I had the ECM replaced when I received the "Recall Letter" back in 2006.

A few days ago I unhooked the battery and charged the battery outside of the machine. I then reinstalled it and everything seems to fine ever since.

I don't know what I could have done to fix anything.

Thanks for the feedback.

[norm]

It's still possible that you need a new ECM. The first recall they just took the ECM and sent it in to get tested and if it tested good it got put back in the machine. There was a more recent recall in 2008 where all the ECMs were replaced with an updated one. I would still call a dealer with your VIN and see if that recall applies to your rig.