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Conditions for Setting the DTC

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The microprocessor first writes information to a cell, or address, adds 0.25 to the value, calculates a check sum. If this check sum minus 0.25 is not equal to the cell value, the module sets the DTC.

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