2004 Late 2004 Sportsman 500 Fan runs with ignition off

[Deerslayer]

Hi all,

My Late 2004 Sportsman 500 fan runs with the ignition off and is not running to the normal speed. I had to disconnect the battery to shut off the fan. Looking at the wiring diagram it appears that the SSCB No. 1 is the only possible source of the issue. I assume this is also called the ECM but not possitive.

Has anyone else seen this type of issue and is the SSCB need to be replaced or is there other items like dirty connections that may be the source of the issue.

Thanks!

Craig

[dakotademon7]

I don't know much about them but it may be a bad fan relay.

[Deerslayer]

Thanks Dakota Demon! The late 2004 model was the first without a standalone relay for fan control and the fan control is part of the "Logic Box" module and since there is no testing procedure to check the module i was hoping that others have experienced the same sort of problem and the Logic Box fixed their issue.

Thanks again for the support!

Craig