LAUNCH TECH X-431 EURO TAB User Manual
Also see for X-431 EURO TAB: User manual
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LAUNCH X431 EURO TAB User Manual44sensorbox, and then the other end to the test probe or electronic controlconverting cable.3. Connect one end of the sensor test cable (red) into the “VΩHz” interface ofthe sensorbox, and then the other end to the test probe or electronic controlconverting cable.Note: Choose corresponding cables and test probes according to different terminals.9.3.2 Simulation testSimulation test enables users to exactly judge if the sensor is good or not toavoid replacing components blindly. For example, the trouble code indicates thefault is in water temperature sensor itself. But we need to confirm whether thefault results from water temperature sensor or the connections between ECUand sensors, or ECU itself. In this case, we can make full use of simulation testto input the signal of simulating water temperature sensor, instead of watertemperature sensor, to the microcomputer. If the engine works better and thefault vanishes, the fault is in the water temperature sensor. If the fault still occurs,input the signal to the corresponding terminals of ECU. Consequently, if the faultdisappears, the fault lies in the connection between water temperature sensorand ECU, otherwise, the fault exists in ECU.After all connections are properly made (refer to Chapter 9.3.1 for details),launch X-431 EURO TAB application and enter the function menu interface,then tap “Toolbox” -> “Sensor” to enter the test selection screen. See Fig. 9-2.Fig. 9-21. DC voltage simulationIn Fig. 9-2, tap [Current voltage], then tap “+” or “-” to adjust the output voltagevalue. Alternatively, user can also tap edit box, then use the on-screen keyboard(C) Diagtools & Launch Europe www.diagtools.lv, Riga, Pernavas 43A, LV-1009, t. +371 67704152, +371 29416069 |
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