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Home >> Subaru >> 2013 >> Tribeca >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code Detecting Criteria >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P050A Cold Start Idle Air Control System Performance >> Diagnostic Method >> Abnormality Judgment
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Abnormality Judgment

Calculate the estimated exhaust gas temperature when the diagnostic enable condition is established. Judge as NG when the following conditions are established.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Estimated exhaust gas temperature < Value of Map 4
MAP 4

Engine coolant temperature at engine starting -30 °C (-22 °F) -20 °C (-4 °F) -10 °C (14 °F) 0 °C (32 °F) 10 °C (50 °F) 20 °C (68 °F) 30 °C (86 °F) 40 °C (104 °F) 50 °C (122 °F) 60 °C (140 °F)
Threshold Value 200 °C (392 °F) 200 °C (392 °F) 200 °C (392 °F) 225 °C (437 °F) 225 °C (437 °F) 220 °C (428 °F) 210 °C (410 °F) 200 °C (392 °F) 190 °C (374 °F) 190 °C (374 °F)

Time Needed for Diagnosis:  14 seconds

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



Judge as NG when the following conditions are established.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Actual engine speed - Target engine speed < - 125 rpm

Time Needed for Diagnosis:  5000 ms

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



Judge as NG when the following conditions are established.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Final ignition timing - ignition timing during CSERS*
*: Ignition timing during CSERS (Cold Start Emission Reduction Strategy) = Base ignition timing - retard amount
> Value of Map 5
MAP 5

Engine coolant temperature -40 °C (-40 °F) -30 °C (-22 °F) -20 °C (-4 °F) -10 °C (14 °F) 0 °C (32 °F) 10 °C (50 °F) 20 °C (68 °F) 30 °C (86 °F) 40 °C (104 °F) 50 °C (122 °F) 60 °C (140 °F)
Threshold Value 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA 5 °CA

Time Needed for Diagnosis:  5000 ms

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