DTC Confirmation Procedure

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

If engine will not start or stops soon, wait at least 10 seconds with engine stopped (Ignition switch ON) instead of running engine at idle speed.

GO TO 2.

1. Start engine and warm it up to normal operating temperature.
2. Run engine for 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: Without CONSULT-III: GO TO  5.

1. Turn ignition switch ON.
2. Start engine and warm it up to normal operating temperature.

   If engine cannot be started, go to  "DIAGNOSIS PROCEDURE ".

3. Select "MAS A/F SE-B1/B2" in "DATA MONITOR" mode with CONSULT-III.
4. Check the voltage of "MAS A/F SE-B1/B2".
5. Increases engine speed to about 4, 000 rpm.
6. Monitor the linear voltage rise in response to engine speed increases.

Fig 1: Voltage Reference Graph

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

Is the inspection result normal? 

YES: GO TO 4.

NO: Go to "DIAGNOSIS PROCEDURE ".

1. Maintain the following conditions for at least 10 consecutive seconds.
   ENG SPEED SPECIFICATIONS
   
   

   ENG SPEED	More than 2, 000 rpm
   TP SEN 1-B1	More than 3V
   TP SEN 2-B1	More than 3V
   TP SEN 1-B2	More than 3V
   TP SEN 2-B2	More than 3V
   Selector 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.
2. Check 1st rip 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 ".