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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1133 (Data Communication System) >> Diagnostic Information and Procedures >> DTC B1009 >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The control module reverts to base operation values programmed for those blocks of data that have failed the check sum test.

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