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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0527: Cooling Fan Speed Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0527 Cooling fan speed sensor circuit range/performance The number of fan speed signals is 16 rpm or less during engine rev.
  • Harness or connectors

    (The Electrically - controlled cooling fan coupling circuit is open or shorted)

  • Electrically - controlled cooling fan coupling
  • Cooling fan
  • IPDM E/R
  • Sensor power supply 2