In the engine operating state can not choose this test mode. To select this mode, how to sell the compressor speed, the engine must be stopped and the key switch in the "on" position. When the engine is stopped, this mode generates a wastegate control signal to the exhaust bypass valve. Diagnostic procedures for detecting the exhaust bypass valve-related failures. When the exhaust gas control test mode is selected, a 30 Hz pulse width modulated signal is input to the wastegate. The duty cycle of the signal is displayed on the screen. If the solenoid valve is working properly, the compressor speed sales center, you can hear the high-speed solenoid valve impact noise when running this mode. Check the system error code system error code display fault code storage and related instructions. If there is no fault code display, compressor control, the software displays no error message. Clear system fault code Clear fault code from the memory, use the arrow keys to move the cursor to highlight FAULT. Press Enter. In the diagnostic process, before clearing the record all fault code as a reference. As clear all faults, press "C". Reads the program identification information (PROM ID) and date code (Date Code) program identification information (PROM ID) and date code (Date Code) is located in the upper right diagnosis of the screen, this information is used to track the ECM calibration file versions. To confirm any software updates and calibration files. Compressor governor _ Shenyang Empire automation equipment _ compressor speed provided by the Shenyang Automation Equipment Co., Ltd. Empire. "Automation control equipment, machinery and equipment, electronic equipment development and design" preferred Empire Shenyang Automation Equipment Co., Ltd. (www.syepe.net), the company is located: Tiexi District of Shenyang Xinghua North Street 18 A 1404, over the years, Shenyang TU Pyle Automation Equipment Co., Ltd. to provide customers with the best quality service, contact: Lien Ning. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Empire Shenyang Automation Equipment Co. expect to be your long-term partner!