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Home >> Infiniti >> 2015 >> QX60 Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Wiring Diagrams And Diagnostic Trouble Codes (DTCS) U0101-P0161) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC P0130, P0150: O2 Sensor 1 Signal Out Of Range >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. PRECONDITIONING

    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.

    TESTING CONDITION: 

    Before performing the following procedure, confirm that battery voltage is more than 11 V at idle. 

    GO TO STEP 2. 

  2. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A

    1. Start engine and warm it up to normal operating temperature.
    2. Let engine idle for 2 minutes.
    3. Check 1st trip DTC.

    Is 1st trip DTC detected?

    YES 

    Proceed to DIAGNOSIS PROCEDURE .

    NO-1 

    With CONSULT: GO TO STEP 3. 

    NO-2 

    With GST: GO TO STEP   7 . 

  3. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION

    1. Start engine and warm it up to normal operating temperature.
    2. Select "A/F SEN1 (B1)" or "A/F SEN1 (B2)" in "DATA MONITOR" mode with CONSULT.
    3. Check "A/F SEN1 (B1)" or "A/F SEN1 (B2)" indication.

    Does the indication fluctuate around 2.2 V?

    YES 

    GO TO STEP 4. 

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

  4. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-I

    1. Select "A/F SEN1 (B1) P1276" (for DTC P0130) or "A/F SEN1 (B2) P1286" (for DTC P0150) of "A/F SEN1" in "DTC WORK SUPPORT" mode with CONSULT.
    2. Touch "START".
    3. When the following conditions are met, "TESTING" will be displayed on the CONSULT screen.
      ENG SPEED 1, 000 - 3, 200 RPM
      VHCL SPEED SE More than 64 km/h (40 mph)
      B/FUEL SCHDL 1.0 - 10.0 msec
      Selector lever D position

      If "TESTING" is not displayed after 20 seconds, retry from step 2. 

      CAUTION:

      Always drive vehicle at a safe speed.

    Is "TESTING" displayed on CONSULT screen?

    YES 

    GO TO STEP 5. 

    NO 

    Check A/F sensor 1 function again. GO TO STEP   3 . 

  5. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-II

    Release accelerator pedal fully.

    NOTE:

    Never apply brake when releasing the accelerator pedal.

    Which does "TESTING" change to?

    COMPLETED 

    GO TO STEP 6. 

    OUT OF CONDITION 

    Retry DTC CONFIRMATION PROCEDURE. GO TO STEP   4 . 

  6. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-III

    Touch "SELF-DIAG RESULT".

    Which is displayed on CONSULT screen?

    OK 

    INSPECTION END

    NG 

    Proceed to DIAGNOSIS PROCEDURE .

  7. PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B

    Perform component function check. Refer to COMPONENT FUNCTION CHECK .

    NOTE:

    Use component function check to check the overall function of the A/F sensor 1 circuit. During this check, a 1st trip DTC might not be confirmed.

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Proceed to DIAGNOSIS PROCEDURE .

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