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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1397 (Body Control System) >> Diagnostic Information and Procedures >> DTC B1009: EEPROM Checksum Error >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The module retains an inverse copy of the digital value stored in certain blocks of memory in the EEPROM. The module then reads the information from those certain blocks and adds the stored inverse value to the current value. If they do not equal 0, the module sets the DTC.

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