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Prev Professional Automotive Repair Technical Discussions for October 20, 2021
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2015 GMC Sierra 3500 HD 6.6L Monitor incomplete VIN: 1GD311C86F
Thank you all for your input. I discovered that this particular monitor will not complete until it has accumulated enough regenerations to calculate a regen frequency value. There is no published number but for us it was 5 active regenerations.
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