If you look at the printed circuit very carefully and look at the solder joints you will see a small circle in the solder around the bad pin, or it will be dull gray instead of bright and shinny. Look especially close to any big pins that go to the plug or heavy componets such as relays. Use a magnifying glass unless you are young and good eye site. I have to use a magnifying glass but my grandson can see them without any aid and in the dark. Oh to be young again. Resolder any pins that look funny.
Paul
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84 500 SEL (307,xxx miles)
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