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P1477 Diagnostic Trouble Code Discussion for August 2010

Medium Fan Control Primary Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1477
Help Request Posted
2002 Ford Taurus LX 3.0L MIL Lamp on VIN: 1FAFP52U82
P1477: High Speed Fan Power Fault. ... illuminated & DTC P1504, Idle Air Control Circuit Fault, stored. No other symptoms were noted by the customer or the technician. Testing requires checking for power @ IAC, (Battery voltage recorded). Check resistance of IAC between 6-13 ohms, (10.5 ohm...
August 27, 2010