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Home >> Subaru >> 2006 >> Baja Turbo, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0483 - Cooling Fan Rationality Check - >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

Check the engine coolant temperature (A/D value) when the radiator fan is ON since the radiator fan output turns from OFF to ON with all of the malfunction conditions below completed.

ENABLE CONDITION

Secondary Parameters Enable Conditions
Engine speed 600 - 900 rpm
Idle switch ON
Vehicle speed 0 km/h (0 MPH)
Battery voltage ≥ 10.9 V

Judge NG when the cumulative time until completing the malfunction criteria below becomes more than the time (5 minutes) needed for diagnosis. Also Judge OK when the malfunction criteria below is not completed. And then clear NG.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Radiator fan signal switching OFF to ON
Engine coolant temperature ≥ 105°C (221°F)
Engine coolant temperature Not decreased
Fig 1: Engine Coolant Temperature Graph
G04988960Courtesy of SUBARU OF AMERICA, INC.

Time Needed for Diagnosis  : 5 minutes

Malfunction Indicator Light Illumination  : Illuminates when malfunction occurs in 2 continuous driving cycles.