P1474 Lexus Low Fan Control Primary Circuit Malfunction

P1474 Lexus Low Fan Control Primary Circuit Malfunction

Possible causes
  • FCV circuit open or shorted.
  • B+ or ground circuit fault to cooling fan.
  • VPWR open to cooling fan (if applicable).
  • Damaged cooling fan module.
  • PCM damaged.
    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1474 Lexus Description

    This test checks the Fan Control – Variable (FCV) output circuit. The DTC sets if the PCM detects the voltage on the FCV circuit is not within the expected range.

    Lexus Vehicle:Lexus ES,Lexus GS,Lexus GX,Lexus HS,Lexus IS,Lexus LFA,Lexus LS,Lexus LX,Lexus RX,Lexus RX,Lexus SC,Lexus GS350,Lexus GS450H,Lexus IS250,Lexus GX460,Lexus IS350,Lexus LS460,Lexus LS600H,Lexus LX570,Lexus RX350
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