im working on a friends sanbar supercharged ecvt trans . it wont move , no clutch at all . I tested the amperage in line to the brushes and I don't have anything in all three modes . threw harness side shows battery voltage on the red and white, I checked the pedel sensor and its working , I cant find the controller for the trans ether . customer was plowing with is and it started to slip , then worse and worse til it quit. am I right to think the powder clutch is shot and cant pull the amperage threw the powder . should I have amperage at the brushes regardless?