Variable Displacement Compressor TesterModel: ECV 600 For A C with variable displacement compressor, when thecompressor work status is found abnormal, it is necessary toaccurately diagnose whether the fault is the compressor itself,the ECV solenoid or the electronic control system. ECV600 cantest the control PWM signal issued by the electronic controlsystem, and can also bypass the electronic control system todirectly drive the compressor ECV valve, as well as it can test theresistance of