Product DescriptionThe Compressor Electronic Control Valve Tester can test electronic control valves in variable displacement compressors. The tester can be placed in-line between the compressor control valve and wiring harness connector, so control valve issues can be diagnosed before condemning the compressor. The electronic control valve regulates internal compressor pressure to change compressor displacement. The tester regulates the input signal to the control valve to verify the valve operation. A compressor with a low-pressure differential may simply have a defective or dirty electronic control valve or not be receiving the proper voltage signal to the control valve. This tool allows the technician to diagnose problems with external control valve compressors with three easy steps. This 12v operated unit allows the technician to check the resistance of the control valve, test the input signal from the ECU, and manually drive the compressor control valve with multiple commands to ensure that the compressor is working properly. This unit provides digital readings of the resistance of the control valve and the percent of duty cycle that is being received from the ECU. Includes many model specific adaptors and one universal.Part Number CCA-23270
