Diagnostics & measurements
Interpret fault codes, logs and measurements in context.
Diagnostics & measurements
5 articles found
CVN: what the Calibration Verification Number describes
The CVN forms part of software identification and integrity checking. It is neither a power figure nor, by itself, complete proof of a file’s origin.
Read articleDiagnostic trouble codes: understanding the finding and narrowing down the cause
A trouble code records a detected deviation. Its status, supporting data and targeted checks are what turn it into a reliable diagnosis.
Read articleFreeze-frame data: understanding the moment a fault was recorded
Freeze-frame data adds operating conditions to a trouble code. It helps identify a useful test condition but does not replace data logging.
Read articleLive data and data logging: comparing measurements meaningfully
A useful log answers a specific question. Appropriate parameters, timing and comparable conditions matter more than the number of plotted curves.
Read articleDynamometer testing: putting power graphs into context
A power graph becomes useful when the method and conditions are known. One peak number is not enough for a fair comparison.
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