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Old 05-09-2003, 02:43 PM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,126
That device sucks air through the vent in the dome light cluster. Behind the vent is the ACC cabin temp sensor. The cabin temp sensor doesn't get a good sampling of cabin air unless the motor is sucking air through the vent.

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