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Home >> Nissan-Datsun >> 2014 >> Juke S, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1217 To P2263 >> DTC P159B: G Sensor >> Diagnosis Procedure

Diagnosis Procedure

  1. PERFORM CALIBRATION OF G SENSOR 

    Perform calibration of G sensor. Refer to "WORK PROCEDURE ".

    : GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 

    Perform DTC Confirmation Procedure. Refer to "DTC LOGIC ".

    Is 1st trip DTC detected? 

    YES: GO TO 3.

    NO: INSPECTION END

  3. CHECK G SENSOR FITTING CONDITION 

    Check G sensor fitting condition.

    Is the inspection result normal? 

    YES: GO TO 4.

    NO:

    1. Adjust parts fitting condition.
    2. Perform calibration of G sensor. Refer to "WORK PROCEDURE ".
  4. CHECK G SENSOR POWER SUPPLY CIRCUIT-I 
    1. Turn ignition switch OFF.
    2. Disconnect G sensor harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between G sensor harness connector terminals.
      G sensor Voltage (Approx.)
      Connector + -
      Terminal
      B32 3 2 5 V

      Is the inspection result normal? 

      YES: GO TO 5.

      NO: GO TO  7.

  5. CHECK G SENSOR SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between G sensor harness connector and ECM harness connector.
      G sensor ECM Continuity
      Connector Terminal Connector Terminal
      B32 1 F26 83 Existed
    4. Also check harness for short to ground and short to power.

      Is the inspection result normal? 

      YES: GO TO 6.

      NO: Repair or replace error-detected parts.

  6. CHECK G SENSOR 

    Check G sensor. Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    NO:

    1. Replace G sensor.
    2. Perform calibration of G sensor. Refer to "WORK PROCEDURE ".
  7. CHECK G SENSOR POWER SUPPLY CIRCUIT-II 

    Check the voltage between G sensor harness connector terminal and ground.

    + - Voltage (Approx.)
    G sensor
    Connector Terminal
    B32 3 Ground 5 V

    Is the inspection result normal? 

    YES: GO TO 8.

    NO: GO TO  10.

  8. CHECK G SENSOR GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between G sensor harness connector and ECM harness connector.
      G sensor ECM Continuity
      Connector Terminal Connector Terminal
      B32 2 F26 87 Existed

      Is the inspection result normal? 

      YES: GO TO 9.

      NO: Repair or replace error-detected parts.

  9. CHECK ECM GROUND CIRCUIT 

    Check the continuity between ECM harness connector and ground.

    ECM Ground Continuity
    Connector Terminal
    F25 1 Ground Existed
    2
    E18 123
    124
    127

    Is the inspection result normal? 

    YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    NO: Repair or replace error-detected parts.

  10. CHECK SENSOR POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connectors and each sensor harness connectors
    3. Check harness connector for short to power and short to ground, between the following terminals.
      ECM Sensor
      Connector Terminal Name Connector Terminal
      F25 39 FRP sensor F5 1
      EOP sensor F43 3
      Turbocharger boost sensor F75 1
      F26 68 Battery current sensor F52 1
      G sensor B32 3
      72 CMP sensor F109 1
      EVT control position sensor F110 1
      E18 118 APP sensor 2 E101 5

      Is the inspection result normal? 

      YES: Perform the trouble diagnosis for power supply circuit.

      NO: Repair or replace error-detected parts.

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