My 2004 Ranger 500 does "nothing" when I turn the ignition key. No indicator lights on the panel, no cranking. I've confirmed the battery is good. I replaced the ignition switch and the starter solenoid. No luck with that.

So, as you can see I'm not very good at this. My diagnostic skills are poor (I'm no mechanic) but I do like to try to fix things on my own.

So, I've read that the ECM might be the problem. I don't see where I have an ECM. I have three small, shallow, black "boxes" where I think the ECM would be. I got the numbers off of them. One is a engine regulator, one is a regulator/recitifer, and the other is an alternator control switch.

So, am I looking at this correctly and which of those might be my problem, and should I also be looking elsewhere?

Thanks for any help you can give me!

 

#4010740 is the 12vdc cut off module that could possibly be the problem. The other two modules are the hub safety switch and regulator/rectifier. Before I'd guess on parts like this that are fairly expensive I'd go through the 10 buck service manual trouble shooting guides and tests to help narrow it down.2004 Polaris Ranger 500 4X4 Service Manual PDF Download

 

I have that service manual and can not find anyplace in it where these are addressed. Am I overlooking something?

 

OK. I've looked again. Maybe there are some troubleshooting directions that will help me. I'll report back.

 

Chapter 10 on the atv manuals,not sure which one on the Ranger. Ignition trouble shooting guides and tests,plus the wiring schematic can help also.