Data Integrity Check Failed HP Tuners February 17, 2021 17:53 Updated The Data Integrity Check Failed error can be caused by previous tuning that has corrupted the tune.Please open a support ticket and provide the following:1) Tune causing the error2) VCM Suite Infolog while connected to the vehicle. Related articles How to Generate a VCM Suite Infolog Controller Unlocker Web Exception, Name Resolution Failure Definition Failed to Load / Validate Checksum Failed Contacting HP Tuners Locating a Debug.dat and License.dat File Comments 1 comment Sort by Date Votes 123 Run Forest Run June 01, 2021 18:55 I'm a home tuner and when I load the first tune of the day to my vehicle, I get the Fail response. If I hit Load again for a second try it completes correctly. Seems like a problem with the HPt server response to me. I have a strong WIFI connection. I test it before attempting a tune load to be sure. If I don't retry the Load, the tune is fine and datalogs correctly. Any ideas? 0 Please sign in to leave a comment.