Originally Posted by jhagan1980
Can't seem to figure out how to test to find my problem. My mirrors will not work, I've hooked mirrors straight to battery and they work. I'm not sure how I go about checking the wiring and switch to find the problem. I bought a new switch but don't know how to test with meter. I have a Haynes manual but it really doesn't explain we'll enough.
You set the meter to voltage in the 12 volts DC range, ground the black wire and use the red to check for volts.