Component Function Check

With GST 

1. Lift up drive wheels.
2. Start engine (VDC switch OFF) and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Turn ignition switch OFF and 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 condition.
   ECM SPECIFICATIONS
   
   

   ECM
   Connector	+	-
   	Terminal	Terminal
   M9	102 (EVAP control system pressure sensor signal)	112

   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 CHART
   
   

   Air conditioner switch	ON
   Headlamp 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 ".