yes brewski is correct, the laptop software would be needed to run diagnostics over and above what the ECM already does.
Which brings me to this question, are there any codes being displayed or in the error log?
IF there are any issues with the EPR it should trigger an error code being it is controlled by the ECM.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.