Bad Windshield Wiper Switch - 1990 200Q

[Tony]

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Well, after an extended layup the wiper switch on my 200Q has given up.

Do I have to pull the steering wheel to change it out?

On the same note, has anybody here had any luck taking it apart and cleaning the contacts?  (That thing is an expensive little booger!)

TIA,
Tony

1990 200Q