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Home › Nissan-Datsun › 2014 › Juke SL, FWD, Standard Trans › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTCS P0130 To P0420 › DTC P0234: TC System › Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BOOST CONTROL ACTUATOR HOSE 

    Check disconnection, looseness or improper connection of hose between turbocharger boost control solenoid valve and boost control actuator.

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace error-detected parts.

  2. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect turbocharger boost control solenoid valve harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between turbocharger boost control solenoid valve harness connector and ground.
      + - Voltage
      Turbocharger boost control solenoid valve
      Connector Terminal
      F54 2 Ground Battery voltage

      Is the inspection result normal? 

      YES: GO TO  4.

      NO: GO TO 3.

  3. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector.
    3. Check the continuity between turbocharger boost control solenoid valve harness connector and IPDM E/R harness connector.
      + - Continuity
      Turbocharger boost control solenoid valve IPDM E/R
      Connector Terminal Connector Terminal
      F54 2 E14 36 Existed
    4. Also check harness for short to ground and short.

      Is the inspection result normal? 

      YES: Perform the trouble diagnosis for power supply circuit.

      NO: Repair or replace error-detected parts.

  4. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between turbocharger boost control solenoid valve harness connector and ECM harness connector.
      + - Continuity
      Turbocharger boost control solenoid valve ECM
      Connector Terminal Connector Terminal
      F54 1 F26 73 Existed
    4. Also check harness for short to power.

      Is the inspection result normal? 

      YES: GO TO 5.

      NO: Repair or replace error-detected parts.

  5. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE 

    Check the turbocharger boost control solenoid valve. Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 6.

    NO: Replace turbocharger boost control solenoid valve. Refer to "EXPLODED VIEW ".

  6. CHECK BOOST CONTROL ACTUATOR 

    Check the boost control actuator. Refer to "INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 7.

    NO: Replace exhaust manifold and turbocharger assembly. Refer to "EXPLODED VIEW ".

  7. CHECK TURBOCHARGER BOOST SENSOR 

    Check the turbocharger boost sensor. Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

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

    NO: Replace turbocharger boost sensor. Refer to "EXPLODED VIEW ".

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