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Home >> Infiniti >> 2021 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (1 Of 5) >> Engine (ECM) >> DTC P0132: A/F Sensor 1 >> Confirmation Procedure
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Confirmation Procedure

  1. PRECONDITIONING 

    If DTC Confirmation Procedure has been previously conducted, always perform the following procedure 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 10.5 V or more at idle.

    GO TO 2.

  2. CHECK A/F SENSOR FUNCTION 

    SYMBOL 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.

    SYMBOL WITH GST

    Follow the procedure "With CONSULT" above.

    Is the indication constantly approx. 5 V?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE 

    SYMBOL 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.

    SYMBOL WITH GST

    Follow the procedure "With CONSULT" above.

    Is 1st trip DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    INSPECTION END