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Home >> Chevrolet >> 2003 >> Chevy Express H2500 >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Body Control System >> Diagnostic Information and Procedures >> DTC B1009: EEPROM Check Sum Error >> Conditions for Running the DTC
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Conditions for Running the DTC

The module runs the program to detect an EEPROM checksum error after each wake-up. The only requirements are battery positive voltage and ground. This program runs even if the voltage is out of the valid operating range.