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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 P0181 - Fuel Temperature Sensor "A" Circuit Range/Performance - >> Diagnostic Method

Diagnostic Method

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Judge NG when the continuous time until completing the malfunction criteria below becomes more than the time (120 seconds) needed for diagnosis. Also, judge OK when the malfunction criteria below is not completed. And then, clear the NG.

Judgment Value 

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Fuel temperature-engine coolant temperature ≥ 10°C (18°F)
Engine coolant temperature < 80°C (176°F)

Time Needed for Diagnosis  : 120 seconds

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

Stuck Diagnosis

If the fuel temperature which must increase along with engine idling does not increase, the engine is considered to be stuck and NG judgment is done.