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Home >> Subaru >> 2018 >> Crosstrek Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0451: EVAP System (CPC) Pressure Sensor/Switch Circuit Range/Performance >> Diagnostic Method
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Diagnostic Method

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
|Evaporative Leak Check Module pressure sensor output value - intake manifold pressure (absolute pressure) when ignition switch is ON| More than 5.1kPa (37.9mmH g, 1.5inHg)

Time needed for diagnosis:  320ms

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