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Ambient temp sensor fan for the climate control system running all of the time

Problem Child

Problem Child

Non Diesel mechanic
Messages
64
Reaction score
10
Location
Mississippi
My wife's 2002 Trailblazer has a little speaker looking thing behind the Driver's seat. From searching the web,I've found out it is a "ambient temp sensor for the climate control system". There's a little fan that pulls inside air into the sensor and the fan seems to be running 24/7. Anyone ever came across this problem ?? Thanks
 
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