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Home >> Nissan-Datsun >> 2008 >> Versa SL, 4D Hatchback, Automatic CVT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 To P0133 >> DTC P0132 A/F Sensor 1 >> Diagnostic Procedure

Diagnostic Procedure

  1. CHECK GROUND CONNECTIONS 
    1. Turn ignition switch OFF.
    2. Loosen and retighten three ground screws on the body.

      Refer to "GROUND INSPECTION ".

      Fig 1: Identifying E24, E15 Body Ground And F9, F16 Engine Ground Screws
      G04812031Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK >> GO TO 2.

    NG >> Repair or replace ground connections.

  2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT 
    1. Disconnect A/F sensor 1 harness connector (1).
    2. Turn ignition switch ON.
      Fig 2: Identifying Air Fuel Ratio Sensor 1 And A/F Sensor 1 Harness Connector
      G04812049Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check voltage between A/F sensor 1 terminal 4 and ground with CONSULT-II or tester.

      Voltage: Battery voltage 

    OK or NG 

    OK >> GO TO  4.

    NG >> GO TO 3.

    Fig 3: Checking Voltage Between A/F Sensor 1 Terminal 4 And Ground
    G04812050Courtesy of NISSAN MOTOR CO., U.S.A.
  3. DETECT MALFUNCTIONING PART 

    Check the following.

    • Harness connectors E8, F8
    • 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 harness continuity between the following terminals. Refer to WIRING DIAGRAM .
      TERMINALS REFERENCE FOR CONTINUITY

      A/F sensor 1 terminal ECM terminal
      1 49
      2 53

      Continuity should exist. 

    4. Check harness continuity between ECM terminals 49, 53 or A/F sensor 1 terminals 1, 2 and ground.

      Refer to WIRING DIAGRAM .

      Continuity should not exist. 

    5. Also check harness for short to power.

    OK or NG 

    OK >> GO TO 5.

    NG >> Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK INTERMITTENT INCIDENT 

    Perform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

    OK or NG 

    OK >> GO TO 6.

    NG >> Repair or replace.

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

    Replace air fuel ratio (A/F) sensor 1.

    CAUTION:
    • Discard any A/F 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 A/F sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.

    >> INSPECTION END 

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