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OBDIICodesExplained OBD-IIcodesconsistofanumberofparts.HereisasampleOBD2code:P0171 Hereisabreakdownofwhateachdigitofthecodemeans: FirstCharacter-System Thefirstcharacteridentifiesthesystemrelatedtothetroublecode. •P=Powertrain •B=Body •C=Chassis ...