why wont my defroster work on my 90?

JeffP1167

Well-known member
Joined
Dec 21, 2009
Messages
2,727
Location
Yucaipa, CA.
When I push the button on the climate control thingy the indicator light lights up for a second or two then shuts off. What could be causing this to happen? I think this button controls the rear window defroster as well as the heated mirrors.
 
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