1991 L98 21,000 mi. Other day, headlight doors stayed open when I turned the switch/car off. Checked that both headlights still shine/work, put on highbeams and tried switch again, nothing. There appears to be on one motor for each. lI then closed them manually, then tried to open with car on and switch, nothing. do these have a fuse or relay that could have gone? I have a service manual but all it talks about is how to change the motors or remove headlight assembly. At same time, horn does not work when button pushed form steering column, but so sound with security alarm. on same circut somewhere? thank you