Anyone here know how I can test my headlight motor to see if it works by direct hookup to the cars battery ??? Had the motor apart and everything seems to be in working order. Just wanted to see if the motor operates or if it's the relay. Drivers side headlight doesn't come up but will go down by switch if it is raised by the manual ****. 87 T/A. Sorry....don't have a voltage tester as of yet !! Thanks.