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Home >> BMW >> 2009 >> 528xi Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2259 (Self Diagnosis - Theory & Operation (N54)) >> 1.14 Comprehensive Component Monitoring OBD II Siemens VDO function definition >> 1.14.1 Strategy >> 1.14.1.3 Rationality Check

1.14.1.3 Rationality Check

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Components  are checked for the integrity of their values. This is accomplished by the use of a model or other sensor inputs. If a component does not function as expected or the integrity is in question (values are not within a threshold) it is considered out of range/plausible.

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