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Testing interior temperature sensor
1986 911 Turbo - I'm having problems with the auto-heating system and have read a bunch of the posts re auto-heat. My current question is: how do I test the interior temperature sensor - I know that I use a multi-meter, but what do parts of the sensor do I need to probe? Does the car need to be running or ignition on? The rear sensor in the left rear flapper seemed to test okay (I tested at the center console) - the ohm readings increased as the car cooled down - is this correct? Thanks in advance for your guidance
Goosh
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