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Home >> Pontiac >> 1999 >> Firebird V8-5.7L VIN G >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> FC Relay 2 and 3
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FC Relay 2 and 3

The scan tool displays On or Off. The scan tool displays ON when the PCM commands a coolant fan relay ON. Both cooling fans are enabled on high speed when the PCM commands both fan control circuits ON.
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