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Home >> Subaru >> 2009 >> Tribeca Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H6DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0400 Exhaust Gas RECIRCULATION Flow >> Enable Condition

Enable Condition

ENABLE CONDITION REFERENCE

Secondary Parameters Enable Conditions
Elapsed time after starting the engine ≥ 40 s
Engine coolant temperature ≥ 75°C(167°F)
Engine speed 1200 RPM - 3250 RPM
Intake manifold pressure (absolute pressure) < 46.7 kPa (350 mmHg, 13.8 inHg)
Ambient air temperature ≥ 5 °C(41 °F)
Throttle position < 0.25 °
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75 kPa (563 mmHg, 22.2 inHg)
Vehicle speed ≥53 km/h (32.9 MPH)
Fuel shut-off function In operation
Neutral switch OFF
After neutral switch ON/OFF change ≥ Value from Map
No load change (A/C, power steering, lighting, rear defogger, heater fan and radiator fan) ≥ 5000 ms

Map 

ENGINE COOLANT TEMPERATURE REFERENCE

Engine coolant temperature °C (°F) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86)
After neutral switch change msec 0 0 0 0 0 0 0 0
ENGINE COOLANT TEMPERATURE REFERENCE

Engine coolant temperature °C (°F) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
After neutral switch change msec 0 0 0 0 0 0 0 0