LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - Component Testing >> Electrically-Controlled Cooling Fan Coupling >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

  1. CHECK COOLING FAN FUNCTION

    WITH CONSULT-III

    1. Start the engine.
    2. Perform "FAN DUTY CONTROL" in "ACTIVE TEST" mode with CONSULT-III.
    3. Check that cooling fan speed varies according to the percentage.
      NOTE: Speed changes gradually as the percentage changes.

    WITHOUT CONSULT-III

    1. Start the engine and warm up the engine until engine coolant temperature reaches at least 98°C (209°F).
    2. Check that cooling fan speed increase.

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Proceed to "DIAGNOSIS PROCEDURE ".