Subaru LEGACY 2006 Manual page 580

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Diagnostic Trouble Code (DTC) Detecting Criteria
BK:DTC P0453 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE
SENSOR HIGH INPUT
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the fuel tank pressure sensor.
Judge as NG if it is out of specification.
2. COMPONENT DESCRIPTION
(1) Connector
(2) Terminal
3. ENABLE CONDITION
Secondary Parameters
Vehicle speed
All conditions of EVAP canister purge
Learning value of evaporation gas den-
sity
Main feedback compensation coefficient
Battery voltage
4. GENERAL DRIVING CYCLE
Perform the diagnosis continually when purging.
(1)
(C)
(A) Output voltage
(B) Input voltage
Enable Conditions
≥ 2 km/h (1.24 MPH)
Completed
≤ 0.08
≥ 0.9
≥ 10.9 V
GD(H4SO)-143
GENERAL DESCRIPTION
(2)
(A)
(B)
(C) To fuel tank
EN-03875