Diagnosis Procedure

1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
   1. Turn ignition switch OFF.
   2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
   3. Turn ignition switch ON.
   4. Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.
   VOLTAGE SPECIFICATION
   
   

   EVAP canister purge volume control solenoid valve		Ground	Voltage
   Connector	Terminal
   F29	1	Ground	Battery voltage

   Fig 1: Checking Voltage Between EOT Sensor Harness Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   Is the inspection result normal? 

   YES: GO TO 3.

   NO: GO TO 2.

2. DETECT MALFUNCTIONING PART

   Check the following.

   • Harness connectors E11, F2
   • Junction block connectors E44, E45
   • 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 open circuit, short to ground or short to power in harness or connectors.

3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
   1. Turn ignition switch OFF.
   2. Disconnect ECM harness connector.
   3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and ECM harness connector.
      CONTINUITY CHART
      
      

      EVAP canister purge volume control solenoid valve		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      F29	2	F14	25	Existed

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

   Is the inspection result normal? 

   YES-1: With CONSULT-III: GO TO 4.

   YES-2: Without CONSULT-III: GO TO 5.

   NO: Repair open circuit, short to ground or short to power in harness or connectors.

4. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION

   With CONSULT-III 

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

   Does engine speed vary according to the valve opening? 

   YES: GO TO 6.

   NO: GO TO 5.

5. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

   Refer to "COMPONENT INSPECTION ".

   Is the inspection result normal? 

   YES: GO TO 6.

   NO: Replace EVAP canister purge volume control solenoid valve.

6. CHECK INTERMITTENT INCIDENT

   Refer to "INTERMITTENT INCIDENT ".

: INSPECTION END