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Diagnose/P0480
P0480High SeverityEngine

Cooling Fan 1 Control Circuit Malfunction

What This Means

The engine cooling fan 1 control circuit has malfunctioned. This fan is critical for maintaining proper engine temperature, especially at low speeds and idle.

Common Symptoms

  • Engine overheating at idle
  • A/C performance reduced
  • Temperature gauge rising
  • Fan not running

Common Causes

  • Failed cooling fan motor
  • Fan relay failure
  • Wiring damage
  • Blown fuse
  • PCM driver circuit failure

Estimated Repair Cost

$150 – $600
Parts and labor (varies by vehicle and location)
Difficulty:Moderate

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.