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Home >> Cadillac >> 1999 >> Seville STS V8-4.6L VIN 9 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data, Normal Values and Definitions >> Scan Tool Data Definitions - Powertrain Systems >> FC Relay 2 and 3 Command
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FC Relay 2 and 3 Command

Display shows Fan Control Relay state as On or Off. When the PCM is commanding the Fan 2 and 3 Relays On, the scan tool display will switch from Off to On.
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