Sensors such as wheel speed or position sensors output digital signals with characteristic rise/fall times. CHEPQ oscilloscopes measure these transitions with nanosecond resolution. Slower-than-expected rise times can indicate resistive wiring faults, degraded sensor elements, or interference, causing delayed or false triggering in control algorithms. Conversely, excessively fast edges may cause signal ringing or EMI issues. Fine-tuning signal transitions ensures that ECUs receive clean, temporally accurate inputs, vital for stability control, ABS, and other safety systems.