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Chevrolet
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1999
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Corvette V8-5.7L VIN G
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Vehicle On-Board & Scan Tool Diagnostics
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Engine Scan Tool Data Definitions
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FC Relay 1
FC Relay 1
The scan tool displays On or Off. When the
PCM
commands a coolant fan relay ON, the scan tool indicates ON. When cooling fan relay #1 is activated, both fans are enabled on low speed.