Home/Nissan/Altima/Nissan Altima L30 (1997-1999)/Repair manual/Testing & Diagnostics/DTC P0440 OR P1440: EVAPORATIVE EMISSION (EVAP) CONTROL SYS…
Contents Wiring diagrams Section: Testing & Diagnostics All sections

DTC P0440 OR P1440: EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM Nissan Altima L30

Note. Using the following diagnostic procedure assumes the presence of a current (hard) DTC or the ability to duplicate the setting of the DTC using described procedures (see DTC CONFIRMATION), intermittent recreation procedures or a test drive under conditions stored in freeze frame data. See TESTING PROCEDURE under SELF-DIAGNOSTIC SYSTEM in TESTS W/CODES - INTRODUCTION article. If DTC cannot be duplicated, proceed to TESTS W/O CODES article for diagnosis by symptom.