Diagnostic Test

1. Turn ignition switch OFF.
2. Remove EVAP canister vent control valve from EVAP canister.
3. Check portion (A) of EVAP canister vent control valve for being rusted.
   Fig 1: Checking EVAP Canister Vent Control Valve-I

   Courtesy of NISSAN NORTH AMERICA, INC.

Is it rusted?

YES 

Replace EVAP canister vent control valve. Refer to EXPLODED VIEW .

NO 

GO TO STEP 2  .

With CONSULT 

1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform "VENT CONTROL/V" in "ACTIVE TEST" mode.
4. Check air passage continuity and operation delay time.
   Fig 2: Checking Air Passage Continuity

   Courtesy of NISSAN NORTH AMERICA, INC.

   Make sure that new O-ring is installed properly. 

   Condition VENT CONT/V	Air passage continuity between (A) and (B)
   ON	Not existed
   OFF	Existed

   Operation takes less than 1 second. 

Without CONSULT 

1. Disconnect EVAP canister vent control valve harness connector.
2. Check air passage continuity and operation delay time under the following conditions.

   Make sure that new O-ring is installed properly. 

   Condition	Air passage continuity between (A) and (B)
   12 V direct current supply between terminals 1 and 2	Not existed
   OFF	Existed

   Operation takes less than 1 second. 

Is the inspection result normal?

YES 

INSPECTION END

NO 

GO TO STEP 3  .

With CONSULT 

1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Perform "VENT CONTROL/V" in "ACTIVE TEST" mode.
3. Check air passage continuity and operation delay time.
   Fig 3: Checking Air Passage Continuity

   Courtesy of NISSAN NORTH AMERICA, INC.

   Make sure that new O-ring is installed properly. 

   Condition VENT CONT/V	Air passage continuity between (A) and (B)
   ON	Not existed
   OFF	Existed

   Operation takes less than 1 second. 

Without CONSULT 

1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Check air passage continuity and operation delay time under the following conditions.

   Make sure that new O-ring is installed properly. 

   Condition	Air passage continuity between (A) and (B)
   12 V direct current supply between terminals 1 and 2	Not existed
   OFF	Existed

   Operation takes less than 1 second. 

Is the inspection result normal?

YES 

INSPECTION END

NO 

Replace EVAP canister vent control valve. Refer to EXPLODED VIEW .