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Home >> Nissan-Datsun >> 2012 >> Cube Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1212 To P2A00 (CALIFORNIA) >> DTC P2138: App Sensor >> Diagnosis Procedure

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 APP SENSOR 1 POWER SUPPLY CIRCUIT
    1. Disconnect accelerator pedal position (APP) sensor harness connector.
    2. Turn ignition switch ON.
    3. Check the voltage between APP sensor harness connector and ground.
      APP sensor Ground Voltage
      Connector Terminal
      E110 4 Ground Approx. 5 V

      Is the inspection result normal? 

      YES >> GO TO 3.

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

  3. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
    1. Check the voltage between APP sensor harness connector and ground.
      APP sensor Ground Voltage
      Connector Terminal
      E110 5 Ground Approx. 5 V

      Is the inspection result normal? 

      YES >> GO TO  7.

      NO >> GO TO 4.

  4. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between APP sensor harness connector and ECM harness connector.
      APP sensor ECM Continuity
      Connector Terminal Connector Terminal
      E110 4 E16 106 Existed

      Is the inspection result normal? 

      YES >> GO TO 5.

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

  5. CHECK SENSOR POWER SUPPLY CIRCUIT

    Check harness for short to power and short to ground, between the following terminals.

    ECM Sensor
    Connector Terminal Name Connector Terminal
    F8 69 Tumble control valve actuator F22 1
    71 Battery current sensor F53 1
    74 Refrigerant pressure sensor E49 3
    75 CKP sensor (POS) F20 1
    76 EVAP control system pressure sensor B21 3
    E16 102 APP sensor E110 5

    Is the inspection result normal? 

    YES >> GO TO 6.

    NO >> Repair short to ground or short to power in harness or connectors.

  6. CHECK COMPONENTS

    Check the following.

  7. CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between APP sensor harness connector and ECM harness connector as per the following.
      APP sensor ECM Continuity
      Connector Terminal Connector Terminal
      E110 2 E16 111 Existed
      1 104
    4. Also check harness for short to ground and short to power.

      Is the inspection result normal? 

      YES >> GO TO 8.

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

  8. CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
    1. Check the continuity between APP sensor harness connector and ECM harness connector as per the following.
      APP sensor ECM Continuity
      Connector Terminal Connector Terminal
      E110 3 E16 110 Existed
      6 103
    2. Also check harness for short to ground and short to power.

      Is the inspection result normal? 

      YES >> GO TO 9.

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

  9. CHECK APP SENSOR

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES >> GO TO  11.

    NO >> GO TO 10.

  10. REPLACE ACCELERATOR PEDAL ASSEMBLY

    Replace accelerator pedal assembly. Refer to "REMOVAL AND INSTALLATION ".

    >> INSPECTION END

  11. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    >> INSPECTION END

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