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Published on December 20th, 2023
Innova R&D Team
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Innova diagnostic scanners assist you in understanding your vehicle, finding problems, and providing guidance for repairs. You can access the same advanced technology used by professionals, without the high costs or subscription fees.Learn more about Innova Scanners
Explain what FSC means when next to a diagnostic trouble code.
FSC is a term for OEM diagnostic codes used by General Motors. When the abbreviation FSC appears next to a diagnostic trouble code, this mean Failed Since Cleared. The Test Failed Since Code Cleared mode displays all DTCs that have reported a diagnostic test failure since the last time DTCs were cleared.
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The Failure Records mode displays diagnostic data information about the state of the vehicle PCM or VCM system when an emission or non-emission related Diagnostic Trouble Code (DTC) is stored in PCM or VCM memory. This information includes the DTC that caused the Failure Record and diagnostic data parameters (per GM's Enhanced OBD II and SAE J1979).
Failure Record data is read from the PCM or VCM using GM's Class 2 communication link. This mode does not affect vehicle operation, and diagnostic data information can be read from the PCM or VCM to allow for quick analysis of critical input and output parameter values. Failure Record data is displayed in parameter pairs, including the DTC which caused the failure record. All data list active keys are available for scrolling through the data parameters.
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