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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 P2122, P2123: App Sensor >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK APP SENSOR 1 POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect accelerator pedal position (APP) sensor harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between APP sensor harness connector and ground.
      + - Voltage (Approx.)
      APP sensor
      Connector Terminal
      E101 4 Ground 5 V

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between APP sensor harness connector and ECM harness connector.
      + - Continuity
      APP sensor ECM
      Connector Terminal Connector Terminal
      E101 4 E18 101 Existed
    4. Also check harness for short to ground.

      Is the inspection result normal? 

      YES: Perform the trouble diagnosis for power supply circuit.

      NO: Repair or replace error-detected parts.

  3. CHECK APP SENSOR 1 GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between APP sensor harness connector and ECM harness connector.
      + - Continuity
      APP sensor ECM
      Connector Terminal Connector Terminal
      E101 2 E18 105 Existed
    4. Also check harness for short to power.

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace error-detected parts.

  4. CHECK APP SENSOR INPUT SIGNAL CIRCUIT 
    1. Check the continuity between APP sensor harness connector and ECM harness connector.
      + - Continuity
      APP sensor ECM
      Connector Terminal Connector Terminal
      E101 3 E18 102 Existed
    2. Also check harness for short to ground and to power.

      Is the inspection result normal? 

      YES: GO TO 5.

      NO: Repair or replace error-detected parts.

  5. CHECK APP SENSOR 

    Check the APP sensor. Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

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

    NO: Replace accelerator pedal assembly. Refer to "EXPLODED VIEW ".