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Can anyone please help me? The ac in my truck isn't working. I have troubleshot it extensively. I tested the wires from the climate control unit in the dash to the resistor under pass side dash, green and green/black....they are good. I have tested wires up to relay under hood and its working and getting power when turning the knob to on inside vehicle. I have replaced the resistor under the pass side dash. I have jumped out the wires leading to the blower and it works but i have either high speed or nothing, obviously because nothing tell the motor how fast to run and its getting full voltage. however if i leave it like that it blows the fusible 40amp link under hood. What voltage changes should i see from the climate control module to the resistor? Any help to save myself from going broke at the dealer would be greatly appriciated
 
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