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Home >> Subaru >> 2017 >> Crosstrek Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DO) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P050A: Cold Start Idle Control System Performance >> Diagnostic Method
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Diagnostic Method

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Final ignition timing - ignition timing during CSERS(1) > Value of Map 3
(1) Ignition timing during CSERS (Cold Start Emission Reduction Strategy) = Base ignition timing - retard amount
MAP SPECIFICATION 3

Engine coolant temperature °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86) 40 (104) 50 (122) 60 (140)
Threshold value (CVT model) 6 6 6 6 6 6 6 6 6 6 6
Threshold value (MT model) 6 6 6 6 6 6 6 6 6 6 6

Time needed for diagnosis:  7000 ms

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.