Reinsert the socket into the headlamp housing and turn on your ... Test for power at the socket. Turn on the light switch, then ground the tester to a clean screw on the body of the car. Probe the ...
First up: Use the screw terminals on switches and receptacles, not the push-in holes. Wires that are “backstabbed,” or pushed into the back of the device ... Reversing hot and neutral to the light ...