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Toyota Repair/A/C pressure readings

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Question
Hello, I own a 2008 Highlander Sport with the 3.5L engine and 66,500 miles. I purchased the vehicle used with about 58,000 miles on it. The vehicle has the driver and passenger auto a/c system. It does not have the rear auto a/c control. What should the correct high and low side pressure readings be on a fully charged system at a 90-93 degree ambient temperature? I just started having a problem with the drivers side blowing warm air but the passenger side still blows cold air. I would like to check the pressure readings first off. What else could be the problem if the pressure readings are good on the gauges? Thank you for your time.

Answer
Hello, with the engine running and the a/c compressor running the low side pressure should be 35-38 PSI, the high side should be about 125-150. The vent problem may be due to a malfunction air door actuator or the control system, if it has the auto control the system has to be diagnosed using a diagnostic tool that can access the auto air control system.

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