Hello I have a 2004 polaris that has no power for the lights instruments etc. I have see several posts the same some say ecm?  how can I check the ecm  I ordered a manual but it hasn't arrived yet. The battery is new and if I jump it at the solenoid the machine will turn over but wont start, no spark and no power at the gauge cluster. I checked continuity at the fusible link near the battery. how can I check ecm?

thank you