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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 Through P0153 >> DTC P006A, P0101: MAF Sensor >> 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.

      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.

  2. PERFORM DTC CONFIRMATION PROCEDURE

    WITH CONSULT-III

    1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-III.
    2. Start engine and warm it up to normal operating temperature.
    3. Accelerate the vehicle from 0 km/h (0 MPH) to 88 km/h (55 MPH) under the following conditions:
      CAUTION: Always drive at a safe speed.
      NOTE:
      • Accelerate with the accelerator pedal kept constant.
      • The acceleration at engine speed 2, 000 and 3, 000 RPM allows easy diagnoses
      SELECTOR LEVER POSITION

      ACCEL SEN 1 1.4 - 2.0 V
      Selector lever D position
    4. Check 1st trip DTC.

    WITHOUT CONSULT-III 

    1. Start engine and warm it up to normal operating temperature.
    2. With selector lever in D position, accelerate the vehicle from 0 km/h (0 MPH) to 88 km/h (55 MPH) under the following conditions:
      NOTE:
      • Accelerate with the accelerator pedal kept constant.
      • The acceleration at engine speed 2, 000 and 3, 000 RPM allows easy diagnoses.
      VOLTAGE SPECIFICATION

      Accelerator pedal position sensor 1 Ground Voltage (V)
      Connector Terminal
      E110 (Whthout ICC) 3 Ground 1.4 - 2.0
      E67 (With ICC) 10
      CAUTION: Always drive at a safe speed.
    3. Check 1st trip DTC.

      Is 1st trip DTC detected? 

      YES: Proceed to "DIAGNOSIS PROCEDURE ".

      NO: INSPECTION END