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Diagnostic Procedure

WARNING: This page is about a different car, the 2003 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For fuel tank vacuum relief valve, see COMPONENT INSPECTION  under DTC P0442: EVAP CONTROL SYSTEM, for EVAP canister vent control valve, o-ring and circuit DTC confirmation procedure, see DTC CONFIRMATION PROCEDURE  under DTC P1448: EVAP CANISTER VENT CONTROL VALVE, for EVAP canister purge volume control solenoid valve component inspection, see COMPONENT INSPECTION  under DTC P0444 OR DTC P0445: EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE, for fuel tank temperature sensor, see COMPONENT INSPECTION  under DTC P0181: FUEL TANK TEMPERATURE SENSOR, for EVAP control system pressure sensor component inspection, see COMPONENT INSPECTION (2.5L)  or COMPONENT INSPECTION (3.5L)  under DTC P0452: EVAP CONTROL SYSTEM PRESSURE SENSOR, for refueling control valve component inspection, see REFUELING CONTROL VALVE under ON BOARD REFUELING VAPOR RECOVERY SYSTEM in SYSTEM & COMPONENT TESTING article, for fuel level sensor check, see FUEL LEVEL SENSOR UNIT CHECK under COMPONENT TESTS in INSTRUMENT PANELS - ALTIMA article and for intermittents, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.

For diagnostic procedure, see Fig 1 - Fig 6 .

Fig 1: Identifying Diagnostic Procedure For DTC P1456: EVAP Control System (Steps 1-3 Of 24)
G00266120Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Identifying Diagnostic Procedure For DTC P1456: EVAP Control System (Steps 4-6 Of 24)
G00266121Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Identifying Diagnostic Procedure For DTC P1456: EVAP Control System (Steps 7-9 Of 24)
G00266122Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 4: Identifying Diagnostic Procedure For DTC P1456: EVAP Control System (Steps 10-14 Of 24)
G00266123Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 5: Identifying Diagnostic Procedure For DTC P1456: EVAP Control System (Steps 15-22 Of 24)
G00266124Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 6: Identifying Diagnostic Procedure For DTC P1456: EVAP Control System (Steps 23-24 Of 24)
G00266125Courtesy of NISSAN MOTOR CO., U.S.A.
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