Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
3. Turn ignition switch ON.
   Fig 1: Identifying EVAP Service Port And EVAP Canister Purge Volume Control Solenoid Valve

   Courtesy of NISSAN NORTH AMERICA, INC.
4. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 and ground with CONSULT or tester.

   Voltage: Battery voltage 

   Fig 2: Checking Voltage Between EVAP Canister Purge Volume Control Solenoid Valve Terminal 1 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.

   OK or NG 

   OK: GO TO  3.

   NG: GO TO 2.

Check the following.

• Harness connectors E2, F32
• Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
• Harness for open or short between EVAP canister purge volume control solenoid valve and ECM

  : Repair harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 45 and EVAP canister purge volume control solenoid valve terminal 2. Refer to WIRING DIAGRAM .

   Continuity should exist. 

4. Also check harness for short to ground and short to power.

   OK or NG 

   OK: GO TO 4.

   NG: Repair open circuit or short to ground or short to power in harness or connectors.

1. Disconnect EVAP control system pressure sensor harness connector.
2. Check connectors for water.

   Water should not exist. 

   OK or NG 

   OK: GO TO 5.

   NG: Replace EVAP control system pressure sensor. Refer to EVAP CANISTER .

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK (With CONSULT): GO TO 6.

OK (Without CONSULT): GO TO  7.

NG: Replace EVAP control system pressure sensor. Refer to EVAP CANISTER .

With CONSULT 

1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Start engine.
4. Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT. Check that engine speed varies according to the valve opening.

   OK or NG 

   OK: GO TO  8.

   NG: GO TO 7.

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO 8.

NG: Replace EVAP canister purge volume control solenoid valve. Refer to INTAKE MANIFOLD .

1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging.

   OK or NG 

   OK: GO TO 9.

   NG: Clean the rubber tube using an air blower.

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO 10.

NG: Replace EVAP canister vent control valve. Refer to EVAP CANISTER .

1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. Refer to EVAP CANISTER .
2. Check if water will drain from the EVAP canister.

   Yes or No 

   Yes: GO TO 11.

   No: GO TO  13.

   Fig 3: Checking Water Drain From EVAP Canister

   Courtesy of NISSAN NORTH AMERICA, INC.

Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.

The weight should be less than 2.5 kg (5.5 lb). 

OK or NG 

OK: GO TO  13.

NG: GO TO 12.

Check the following.

• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle frame for clogging or poor connection

  : Repair hose or replace EVAP canister. Refer to "REMOVAL AND INSTALLATION " or "REMOVAL AND INSTALLATION ".

Refer to "HOW TO CHECK TERMINAL " and "INTERMITTENT INCIDENT ".

INSPECTION END