Live data measurement is a cornerstone of effective diagnostics, providing real-time insights into vehicle systems. Diagnostic tools allow technicians to monitor parameters such as:

• engine speed
• fuel pressure
• brake pedal position
• suspension height
• and so on

For example, a technician troubleshooting a fuel system issue might observe live fuel rail pressure readings under various load conditions. If the pressure fluctuates abnormally during acceleration, this could indicate a failing fuel pump or clogged injector. Similarly, live data can help diagnose ABS problems by tracking individual wheel speed sensor outputs while the vehicle is in motion.

Live data is also instrumental in validating repairs. After replacing a component, technicians can use live measurements to confirm proper operation. For instance, after repairing an ECAS actuator, the technician can monitor the suspension height in real-time as the system adjusts to different loads. This immediate feedback ensures the repair was successful and reduces the likelihood of repeat issues.

TruckTester features

• Graph view
• 3x3 view
• full live data listing
• export to CSV file
• printing
• PDF export