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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (Engine Control System (Diagnostics) (P000A To P015B) (H4DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control >> Diagnostic Method

Diagnostic Method

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

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Engine coolant temperature < -15°C (5°F)
Elapsed time after starting the engine
((Smaller value of either engine coolant temperature and intake air temperature at engine start) ≥ -23.3°C (-9.9°F))
or
((Smaller value of either engine coolant temperature and intake air temperature at engine start) < -23.3°C (-9.9°F))
≥ Value from Map
MAP SPECIFICATION

  Smaller value either one of engine coolant temperature and intake air temperature at engine start °C (°F)
-40 (-40) -23.4 (-10.1) -23.3 (-9.9) 0 (32) 20 (68) 40 (104) 60 (140) 80 (176)
Percentage of time when engine is at stop against time elapsed since engine start 0.0 300000 300000 120000 120000 120000 120000 120000 120000
  0.3 300000 300000 120000 120000 120000 120000 120000 120000
  0.6 300000 300000 120000 120000 120000 120000 120000 120000
  1.0 300000 300000 120000 120000 120000 120000 120000 120000
ms

Time needed for diagnosis:  120 or 300 seconds

Malfunction indicator light illumination:  Illuminates as soon as a malfunction occurs.