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DTC P0456 EVAP CONTROL SYSTEM EC-367 [KA24DE] C D E F G H I J K L M A EC CAUTION: ● Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, ● If the fuel filler cap is not tightened properly, the MIL may come on. ● Use only a genuine NISSAN rubber tube as a replacement. DTC Confirmation Procedure UBS00D88 NOTE: ● If DTC P0456 or P1456 is displayed with P0442, first perform trouble diagnosis for DTC P0456 or ● Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve ● After repair, make sure that the hoses and clips are installed properly. ● If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait WITH CONSULT-II TESTING CONDITION: ● Open engine hood before conducting following procedure. ● If any of following condition is met just before the DTC confirmation procedure, leave the vehicle – Fuel filler cap is removed. – Refilled or drained the fuel. – EVAP component parts is/are removed. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0456 Evaporative emission control ● EVAP system has a very small ● EVAP system does not operate ● Incorrect fuel tank vacuum relief valve ● Incorrect fuel filler cap used ● Fuel filler cap remains open or fails to close. ● Foreign matter caught in fuel filler cap. ● Leak is in line between intake manifold and ● Foreign matter caught in EVAP canister vent ● EVAP canister or fuel tank leaks ● EVAP purge line (pipe and rubber tube) leaks ● EVAP purge line rubber tube bent ● Blocked or bent rubber tube to EVAP control ● Loose or disconnected rubber tube ● EVAP canister vent control valve and the circuit ● EVAP canister purge volume control solenoid ● Fuel tank temperature sensor ● O-ring of EVAP canister vent control valve is ● Water separator ● EVAP canister is saturated with water ● EVAP control system pressure sensor ● Refueling control valve ● ORVR system leaks ● Fuel level sensor and the circuit ● Foreign matter caught in EVAP canister purge |