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Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0183 >> DTC P0132, P0152: A/F Sensor 1 >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. PRECONDITIONING 
    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 10.5 V or more at idle. 

      : GO TO 2.

  2. CHECK A/F SENSOR FUNCTION 

    WITH CONSULT

    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.

      WITH GST

      Follow the procedure "With CONSULT" above.

      Is the indication constantly approx. 5 V? 

      YES: Proceed to "DIAGNOSIS PROCEDURE ".

      NO: GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE 

    WITH CONSULT

    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.
    4. Restart engine.
    5. Drive and accelerate vehicle to more than 40 km/h (25 MPH) within 20 seconds after restarting engine.
      CAUTION: Always drive vehicle at a safe speed.
    6. Maintain the following conditions for approximately 20 consecutive seconds.
      ENG SPEED 1, 000 - 3, 200 rpm
      VHCL SPEED SE More than 40 km/h (25 mph)
      B/FUEL SCHDL 1.5 - 9.0 msec
      Selector lever Suitable position
      NOTE:
      • Keep the accelerator pedal as steady as possible during cruising.
      • If this procedure is not completed within 1 minute after restarting engine at step  1, return to step  1.
    7. Check 1st trip DTC.

      WITH GST

      Follow the procedure "With CONSULT" above.

      Is 1st trip DTC detected? 

      YES: Proceed to "DIAGNOSIS PROCEDURE ".

      NO: INSPECTION END