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Home >> Nissan-Datsun >> 2013 >> Juke S, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0128 >> DTC P0122, P0123: TP Sensor >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect electric throttle control actuator harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between electric throttle control actuator harness connector and ground.
      + - Voltage (Approx.)
      Electric throttle control actuator
      Connector Terminal
      F29 1 Ground 5 V

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
      + - Continuity
      Electric throttle control actuator ECM
      Connector Terminal Connector Terminal
      F29 1 F26 62 Existed
    4. Also check harness for short to power.

      Is the inspection result normal? 

      YES: Perform the trouble diagnosis for power supply circuit.

      NO: Repair or replace error-detected parts.

  3. CHECK THROTTLE POSITION SENSOR 2 GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
      + - Continuity
      Electric throttle control actuator ECM
      Connector Terminal Connector Terminal
      F29 4 F26 74 Existed

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace error-detected parts.

  4. CHECK THROTTLE POSITION SENSOR 2 INPUT SIGNAL CIRCUIT 
    1. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
      + - Continuity
      Electric throttle control actuator ECM
      Connector Terminal Connector Terminal
      F29 3 F26 76 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 THROTTLE POSITION SENSOR 

    Check the throttle position sensor. Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

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

    NO: Replace electric throttle control actuator. Refer to "EXPLODED VIEW ".

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