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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P050A Cold Start Idle Air Control System Performance >> Diagnostic Method >> Abnormality Judgment

Abnormality Judgment

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

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

JUDGMENT VALUE REFERENCE CHART

Malfunction Criteria Threshold Value
Estimated exhaust gas temperature < Value of Map 4
ENGINE COOLANT TEMPERATURE REFERENCE CHART

Coolant temperature after starting the engine -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)
Threshold value (AT model) 220 °C (428 °F) 220 °C (428 °F) 220 °C (428 °F) 220 °C (428 °F) 220 °C (428 °F) 214 °C (417.2 °F) 206 °C (402.8 °F) 206 °C (402.8 °F) 184 °C (363.2 °F) 178 °C (352.4 °F)
Threshold value (MT model) 214 °C (417.2 °F) 214 °C (417.2 °F) 214 °C (417.2 °F) 214 °C (417.2 °F) 214 °C (417.2 °F) 214 °C (417.2 °F) 214 °C (417.2 °F) 198 °C (388.4 °F) 194 °C (381.2 °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 REFERENCE CHART

Malfunction Criteria Threshold Value
Actual engine speed - Target engine speed < -50 - -100 rpm (AT model)
< - 100 rpm (MT model)

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 REFERENCE CHART

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
ENGINE COOLANT TEMPERATURE REFERENCE CHART

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)
Threshold value (AT model) 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA
Threshold value (MT model) 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA 3.5 °CA

Time Needed for Diagnosis:  5000 ms

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