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Home › Infiniti › 2004 › QX56 AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System › DTC P1446: EVAP Canister Vent Control Valve › Component Inspection › EVAP Canister Vent Control Valve › Without CONSULT-II

Without CONSULT-II

  1. Remove EVAP canister vent control valve from EVAP canister.
  2. Check portion B  of EVAP canister vent control valve for being rusted
    Fig 1: Perform "VENT CONTROL/V" In "ACTIVE TEST" Mode With CONSULT-II
    G02691806Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Portion B Of EVAP Canister Vent Control Valve For Rust Without CONSULT-II
    G02691807Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check air passage continuity and operation delay time under the following conditions.

    Make sure that new O-ring is install properly. 

    CHECKING AIR PASSAGE CONTINUITY CONDITION

    Condition Air passage continuity between A and B
    12V direct current supply between terminals 1 and 2 No
    OFF Yes

    Operation takes less than 1 second. 

    If NG, replace EVAP canister vent control valve.

    If OK, go to next step.

  4. Clean the air passage (Portion A  to B  ) of EVAP canister vent control valve using an air blower.
  5. Perform step 3 again.
    Fig 3: Checking EVAP Canister Vent Control Valve Continuity
    G02691808Courtesy of NISSAN MOTOR CO., U.S.A.
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