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Super Moderator
2010 DTS
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After clearing the codes as mentioned above, have the can hooked up and ready to go. Have someone start the car and have the A/C on max cooling. It should draw in the refrigerant before it can trip the code and shut down again. Hold the can upside down so it fills as a liquid or it will take forever and it WILL disengage the comnpressor.
 
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