I am basically aware of electrical things in homes, but not so great with cars yet.
The headlights stopped working. High beams work in the "pull/temporary" mode, but pushing the stalk for high-beams "on" mode does nothing. Setting headlight switch to turn on headlights also does nothing.
The headlight fuse in the engine compartment is good, but when I remove the fuse and measure across the posts, I get nothing, but when I take the COM lead on the meter to the battery neg, I show 12 volts. 1 or 2 other eng compartment fuse locations test similarly. 1 tests fine.
I have located the headlight relay under the dash and that's now easily accessible for any testing required.
So, what can I test to troubleshoot the problem?
(The car had just been to have a smog check before I noticed this, in case this is important. I'm not aware of anything they'd touch that might effect this, but you never know. I cannot say that the headlights were working fine before as my son had the car.)