Vehicle manufacturers have helped you locate a driveability problem by designing Electronic Control Unit s with trouble-code generating capabilities. But, the ECUs aren’t perfect because they don’t cover everything (most glitches and intermittents). On-board diagnostic systems are engineered with fairly wide set limits for sensors, actuat ors, connectors and terminals. When a component exceeds its limit consistently, a trouble code is generated. But to keep warranty costs in line, tolerances aren’t set to catch all transients, even though they can cause some of your worst driveability problems.

Daoc Patch 1.109 Download there. Therefore, repair technicians are finding more and more uses for a Digital Storage Oscilloscope (DSO) and a Digital Multimeter (DMM) thesedays. A DSO can capture a live “signature” of a circuit and store it for later analysis or comparison against Known-good waveforms - an invaluable resource for detecting marginal components.

A GMM (Graphing Multimeter) gives you advanced multimeter capabilities coupled with the visual power of trend graphing and waveform display. This Met er a combination DSO and GMM represents the most powerful and versat ile tool available for troubleshooting automotive electronics since we can track down elusive no-code driveability problems.

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