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Home >> Subaru >> 2017 >> Outback 2.5i Premium >> 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
Actual engine speed - Target engine speed < Value of Map 4

Map 4 (CVT model) 

Engine coolant temperature °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0.00 (32) 10.00 (50) 20.00 (68) 30.00 (86) 40.00 (104) 50.00 (122) 60.00 (140)
Threshold Value rpm -300 -300 -300 -300 -300 -300 -300 -300 -300 -300 -300

Map 4 (MT model) 

Engine coolant temperature °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0.00 (32) 10.00 (50) 20.00 (68) 30.00 (86) 40.00 (104) 50.00 (122) 60.00 (140)
Threshold Value rpm -300 -300 -300 -300 -300 -300 -300 -300 -300 -300 -300

Time needed for diagnosis:  7000 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 SPECIFICATION

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 at engine starting °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) g/s (oz/s) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23)
Threshold value (MT model) g/s (oz/s) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23) 6.5(0.23)

Time needed for diagnosis:  7000 ms

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