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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control System >> Diagnostic Information & Procedures >> DTC B1000: Internal Fault Detection >> Conditions For Running DTC

Conditions For Running DTC

The microprocessor runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.