DTC Confirmation Procedure

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

   GO TO 2.

1. Activate "INSPECTION MODE 1 " to start engine, and warm up engine to normal operating temperature.
2. Wait at least 10 seconds at idle speed.
3. Check 1st trip DTC.

Is 1st trip DTC detected? 

YES : Go to "DIAGNOSIS PROCEDURE ".

NO-1 : With CONSULT-III: GO TO 3.

NO-2 : With GST: GO TO  5.

1. Activate "INSPECTION MODE 1 " to start engine, and warm up engine to normal operating temperature.
2. Select "DATA MONITOR" mode with CONSULT-III.
3. Check the voltage of "MAS A/F SE-B1" with "DATA MONITOR".
4. Increases engine speed to about 2,500 rpm.
5. Monitor the linear voltage rise in response to engine speed increases.

Fig 1: Checking Voltage Of "MAS A/F SE-B1"

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

Is the inspection result normal? 

YES : GO TO 4.

NO : Go to "DIAGNOSIS PROCEDURE ".

1. Turn ignition switch OFF.
2. Turn ignition switch ON (READY) and drive vehicle.
3. Maintain the following conditions for at least 10 consecutive seconds.
   ENGINE SPEED AND VOLTAGE SPECIFICATION
   
   

   ENG SPEED	More than 2,000 rpm
   THRTL SEN 1-B1	More than 3V
   THRTL SEN 2-B1	More than 3V
   Shift lever	Suitable position
   Driving location	Driving vehicle uphill (Increased engine load) will help maintain the driving conditions required for this test.

   CAUTION: Always drive vehicle at a safe speed.
4. Check 1st trip DTC.

Is 1st trip DTC detected? 

YES : Go to "DIAGNOSIS PROCEDURE ".

NO : INSPECTION END

Perform component function check. Refer to "COMPONENT FUNCTION CHECK ".

Is the inspection result normal? 

YES : INSPECTION END

NO : Go to "DIAGNOSIS PROCEDURE ".