2000 Merc Sable Auto Lights
In automatic on/off mode, my lights automatically turn on (regardless of light conditions) at ignition, but the problem is they no longer turn off in daylight conditions ... that is, they stay on all the time. The auto function itself seems to continue to work, in that the lights do turn off automatically and normally after you turn the engine off.
Trying to figure which part(s) to replace, I don't know if the problem is in the daylight sensor itself (wherever it is -- I don't know), or in a relay somewhere along the line, or the switch itself. Thanks for any help.