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Home >> Nissan-Datsun >> 2008 >> Rogue SL, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (MEXICO) >> Component Diagnosis [For MEXICO] >> P0137 Ho2S2 >> Diagnosis Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Diagnosis Procedure

  1. CHECK GROUND CONNECTION
    1. Turn ignition switch OFF.
    2. Check ground connection E21. Refer to Ground Inspection in "CIRCUIT INSPECTION ".

    Is the inspection result normal?

    YES: GO TO 2.

    NO: Repair or replace ground connection.

  2. CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE
    1. Clear the mixture ratio self-learning value. Refer to "MIXTURE RATIO SELF-LEARNING VALUE CLEAR : Special Repair Requirement ".
    2. Run engine for at least 10 minutes at idle speed.

    Is the 1st trip DTC P0171 detected? Is it difficult to start engine?

    YES: Perform trouble diagnosis for DTC P0171. Refer to "DTC LOGIC ".

    NO: GO TO 3.

  3. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
    1. Turn ignition switch OFF.
    2. Disconnect heated oxygen sensor 2 harness connector.
    3. Disconnect ECM harness connector.
    4. Check the continuity between HO2S2 harness connector and ECM harness connector.
      TERMINALS CONTINUITY REFERENCE

      HO2S2 ECM Continuity
      Connector Terminal Connector Terminal
      F31 1 F8 35 Existed
    5. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES: GO TO 4.

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

  4. CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
    1. Check the continuity between HO2S2 harness connector and ECM harness connector.
      TERMINALS CONTINUITY REFERENCE

      HO2S2 ECM Continuity
      Connector Terminal Connector Terminal
      F31 4 F8 33 Existed
    2. Check the continuity between HO2S2 harness connector or ECM harness connector and ground.
      TERMINALS CONTINUITY REFERENCE

      HO2S2 ECM Ground Continuity
      Connector Terminal Connector Terminal
      F31 4 F8 33 Ground Not existed
    3. 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 HEATED OXYGEN SENSOR 2

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal?

    YES: GO TO  7.

    NO: GO TO 6.

  6. REPLACE HEATED OXYGEN SENSOR 2

    Replace heated oxygen sensor 2.

    CAUTION:
    • Discard any heated oxygen 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 oxygen 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

  7. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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