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Home >> Subaru >> 2021 >> Outback Limited XT >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (2.4L) (Diagnostics) (4 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P24B9: EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance >> General Description >> Diagnostic Method

Diagnostic Method

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

JUDGMENT VALUE - DIAGNOSIS 1

Malfunction Criteria Threshold Value
|Pressure sensor output value in leak check valve assembly - Intake manifold pressure (absolute pressure) when ignition switch is ON| 14.6 kPa (109.5 mmHg,
4.3 inHg) or more
JUDGMENT VALUE - DIAGNOSIS 2

Malfunction Criteria Threshold Value
|Pressure sensor output value in leak check valve assembly - Intake manifold pressure (absolute pressure)| 14.6 kPa (109.5 mmHg, 4.3 inHg) or more

Time needed for diagnosis 

Diagnosis 1:  320 ms

Diagnosis 2:  320 ms

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