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HOMESERVICE MANUALSNISSAN-DATSUN2012XTERRA S, 4WD, AUTOMATIC TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - DTCS P0222 TO P0603DTC P0327, P0328, P0332, P0333: KSDIAGNOSIS PROCEDURE
2012 Nissan-Datsun Xterra S, 4WD, Automatic Trans

Diagnosis Procedure

2012 Nissan-Datsun Xterra S, 4WD, Automatic TransSECTION Diagnosis Procedure
  1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check resistance between ECM terminals 15, 36 and ground. Refer to WIRING DIAGRAM Wiring Diagram.
      NOTE: It is necessary to use an ohmmeter which can measure more than 10 MΩ.

      Resistance: Approximately 532 - 588 kΩ [at 20°C (68°F)] 

    4. Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO  5.

    NG: GO TO 2.

  2. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
    1. Disconnect knock sensor harness connector.
    2. Check harness continuity between ECM terminal 15 and knock sensor (bank1) terminal 1, ECM terminal 36 and knock sensor (bank 2) terminal 1.

      Refer to WIRING DIAGRAM Wiring Diagram.

      Continuity should exist. 

    3. Also check harness for short to ground and short to power.

    OK or NG 

    OK: GO TO  4.

    NG: GO TO 3.

    Fig 1: Identifying Knock Sensor
    G04897004Courtesy of NISSAN NORTH AMERICA, INC.
  3. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors F67, F250
    • Harness for open or short between ECM and knock sensor

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

  4. CHECK KNOCK SENSOR

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 5.

    NG: Replace malfunctioning knock sensor. Refer to "EXPLODED VIEW ".

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

    Refer to "GROUND INSPECTION ".

    Fig 2: Checking Ground Connections
    G04895412Courtesy of NISSAN NORTH AMERICA, INC.

    OK or NG 

    OK: GO TO 6.

    NG: Repair or replace ground connections.

  6. CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
    1. Disconnect knock sensor harness connector.
    2. Check harness continuity between knock sensor terminal 2 and ground. Refer to WIRING DIAGRAM Wiring Diagram.

    Continuity should exist. 

    OK or NG 

    OK: GO TO  8.

    NG: GO TO  7.

  7. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors F67, F250
    • Harness connectors F14, E5
    • Harness for open or short between knock sensor and ground

    : Repair open circuit or short power in harness or connectors.

  8. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END 

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.