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Home >> GMC >> 2009 >> Yukon Base, 4.8 C >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1817 >> DTC Descriptor

July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptor

DTC U1817 00: Lost Communication With Hybrid Powertrain Control Module on Bus "B"

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