One thing to try... go through your fusebox, one at a time, take the fuse
out, wait a few seconds, put it back in, move to the next one. Do that
until you've pulled and re-installed them all. Had this happen a few times
on my 92 caravan. If I recall it did weird stuff - like the dinging when
you have the key in the ignition and the door open - wouldn't work. The
last time it happened to me, I did it with the key in the ignition and the
door open and when I hit the right fuse, the door chime started dinging.
Still can't explain what happened. Probably happened 3 times in the 8 years
or so I've had it...and it's been several years now since it did it.
Hope that works for you!
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