P1474 Mercedes-Benz Low Fan Control Primary Circuit Malfunction

P1474 Mercedes-Benz 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 Mercedes-Benz 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.

    Mercedes-Benz Vehicle:Mercedes-Benz C-Class,Mercedes-Benz CL-Class,Mercedes-Benz CLK-Class,Mercedes-Benz CLS-Class,Mercedes-Benz E-Class,Mercedes-Benz G-Class,Mercedes-Benz GL-Class,Mercedes-Benz GLK-Class,Mercedes-Benz M-Class,Mercedes-Benz R-Class,Mercedes-Benz S-Class,Mercedes-Benz SL-Class,Mercedes-Benz SLK-Class,Mercedes-Benz SLS-Class,Mercedes-Benz Sprinter 2500,Mercedes-Benz Sprinter 3500,
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