So if I disconnect the flasher from the signal switch (after market 7 wire clamp-on) and clamp ohmmeter to the switch power terminal & ground, if I get a reading when engaging L or R signal lever I should get a reading if switch is good right? If I get nothing then the switch is bad. BTW, I have a mechanical 3 prong flasher in now, does it matter to replace it with an electronic flasher or are those just designed for LED lights?