I have an issue with my Lexus RC350 2015(I believe similar to IS model) my AC cannot close the outdoor air, all servo motors were replaced by 1st owner earlier with new ones but still one is stuck and recirculation damper not closing. How can I fix it myself?
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You might benefit from using Toyota’s techstream obd2 diagnostic computer program that works with all Lexus and Toyota models 1996 and newer. There are some specific customizable features regarding the air conditioning and how it behaves. There are also some diagnostic utility tests for various sub-systems of different sections of the car.
Depending on what year and model your car is, will determine what techstream version you will need to be able to benefit and utilize these functions. If your car is newer than a more recently released version of techstream will likely be required.
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