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Home >> Nissan-Datsun >> 2011 >> Cube Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC U0101 Through DTC P0172 (For CALIFORNIA) >> DTC P0130: A/F Sensor 1 >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK GROUND CONNECTION
    1. Turn ignition switch OFF.
    2. Check ground connection E38. Refer to "CIRCUIT INSPECTION ".

      Is the inspection result normal? 

      YES: Go to 2.

      NO: Repair or replace ground connection.

  2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
    1. Disconnect A/F sensor 1 harness connector.
    2. Turn ignition switch ON.
    3. Check the voltage between A/F sensor 1 harness connector and ground.
      VOLTAGE REFERENCE CHART

      A/F sensor 1 Ground Voltage
      Connector Terminal
      F51 4 Ground Battery voltage

      Is the inspection result normal? 

      YES: Go to  4.

      NO: Go to 3.

  3. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors E8, F1
    • IPDM E/R harness connector E15
    • 15 A fuse (No. 61)
    • Harness for open or short between A/F sensor 1 and fuse

      Repair or replace harness or connectors.

  4. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
      CONTINUITY CHART

      A/F sensor 1 ECM Continuity
      Connector Terminal Connector Terminal
      F51 1 F8 49 Existed
      2 53
    4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector and ground.
      CONTINUITY CHART

      A/F sensor 1 Ground Continuity
      Connector Terminal
      F51 1 Ground Not existed
      2
      CONTINUITY CHART

      ECM Ground Continuity
      Connector Terminal
      F8 49 Ground Not existed
      53
    5. Also check harness for short to power.

      Is the inspection result normal? 

      YES: Go to 5.

      NO: Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK INTERMITTENT INCIDENT

    Perform "INTERMITTENT INCIDENT ".

    Is the inspection result normal? 

    YES: Go to 6.

    NO: Repair or replace.

  6. REPLACE AIR FUEL RATIO (A/F) SENSOR 1

    Replace air fuel ratio (A/F) sensor 1. Refer to "EXPLODED VIEW ".

    CAUTION:
    • Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
    • Before installing new sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial service tool).

    INSPECTION END

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