It's probably the connector switch. Another possibility is the ground
pin may have contacts with the circuit board melting together. You might
want to take your '97 Taurus to a dealer or a shop and have them do a
reality check. Ask them to peform an oasis test, check the connectors,
wiring diagram, headlight switch, multi-function switch, fuse and especially
the circuit board. You may have a bad ground. (See my post at Dash Light
Problem, 2002 Ford Taurus SEL)
I found this interesting.
I replaced the connector for the passenger side headlight (Ford sure doesn't
give you much wire to play with, do they?). Now the lights function, the
passenger side one is fine, but the driver's side one is very dim.. Should I
go ahead and change the driver's side connector as well?
Here's my philosophy on replacing things that come in sets: If I have to
replace one bulb, I replace both. The other bulb is just as old and has been
subjected to the same amount of vibration, etc, right?
Two days ago a bulb burned out on my garage door opener. I had to use a ladder
to get to it, a screwdriver to remove the cover, and I had to go to the store to
buy replacement bulbs anyway. That second bulb in the opener was working
fine... it was just daring me to button the opener up without changing it, so it
could fail next week. That was not to happen; I changed them both.
What's the old phrase? "Penny wise and pound foolish"? Your other connector is
probably half melted and/or corroded nearly as badly as the one you just
replaced. Get rid of it and the next time, consign yourself to doing jobs like
this in pairs.
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