I recently developed an issue with my windshield wiper switch where it wasn't properly engaging unless I'd push the lever up for a moment or giggle it around to have it continue to wipe. Here is the damage I found and the fix I came up with. (FYI: the switch comes off easily by removing 2 small long screws that are easily accessible once the steering column cover is removed.)
Circled is the impeding damaged section. Everything easily prys off with a small flat head screw driver.
A front shot of the broken retaining tab for that spring switch that controls the pull control to spray fluid.
Notice all the metal shavings that likely impeded the contact points of the switch. They're definitely steel but I can't imagine from where as nothing in the switch is steel.
Even more metal shavings along with dirty dielectric grease which likely affected conductivity.
Those are all the metals shavings that were in the switch, which is plenty.
More dirty contact points.
Circled is the impeding damaged section. Everything easily prys off with a small flat head screw driver.
A front shot of the broken retaining tab for that spring switch that controls the pull control to spray fluid.
Notice all the metal shavings that likely impeded the contact points of the switch. They're definitely steel but I can't imagine from where as nothing in the switch is steel.
Even more metal shavings along with dirty dielectric grease which likely affected conductivity.
Those are all the metals shavings that were in the switch, which is plenty.
More dirty contact points.