Component Function Check

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM-ENGINE CONTROL SYSTEM- ".

1. PERFORM COMPONENT FUNCTION CHECK

   Without CONSULT-III 

   1. Lift up drive wheels.
   2. Start engine (VDC switch OFF) and warm it up to normal operating temperature.
   3. Turn ignition switch OFF, wait at least 10 seconds.
   4. Turn ignition switch ON.
   5. Turn ignition switch OFF, wait at least 10 seconds.
   6. Start engine and wait at least 70 seconds.
   7. Set voltmeter probes to ECM harness connector terminals under the following conditions.
      ECM CONNECTOR TERMINALS REFERENCE CHART
      
      

      ECM
      Connector	+	-
      	Terminal	Terminal
      E10	86 (EVAP control system pressure sensor signal)	96 (Sensor ground)

      Fig 1: Checking Voltage Between ECM Harness Connector Terminals

      Courtesy of NISSAN MOTOR CO., U.S.A.
   8. Check EVAP control system pressure sensor value at idle speed and note it.
   9. Establish and maintain the following conditions for at least 1 minute.
      AIR CONDITIONER SWITCH REFERENCE CHART
      
      

      Air conditioner switch	ON
      Head lamp switch	ON
      Rear window defogger switch	ON
      Engine speed	Approx. 3, 000 RPM
      Gear position	Any position other than P, N or R

   10. Verify that EVAP control system pressure sensor value stays 0.1 V less than the value at idle speed (measured at step  6) for at least 1 second.

       Is the inspection result normal? 

       YES >> INSPECTION END

       NO >> Go to "DIAGNOSIS PROCEDURE ".