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Testing HVAC control module

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Old Jan 8, 2014 | 07:55 PM
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Default Testing HVAC control module

I have a 95 GC. By removing the blend door actuator, I can manually move the door so I have heat. How can I test the control module and also test the actuator so see which is defective? The blend door does not move, but I do not believe it is broken since I can move it by hand and get heat.


With the actuator removed and the key on, I tested 5VDC between terminals C40 and D41 at the connector.


I would appreciate some help!
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