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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System (Diagnostics) (P0161 To P0685) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P050A Cold Start Idle Control System Performance >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Actual engine speed - Targeted engine speed < Value of Map 4
MAP 4 VALUE SPECIFICATION

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 rpm -235 -235 -235 -235 -235 -285 -300 -300 -260 -260 -260

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 VALUE SPECIFICATION

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 °CA 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5

Time needed for diagnosis:  7000 ms

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