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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 656 (Engine Control System (DTC/Circuit Diagnosis) (8 Of 17)) >> DTC/Circuit Diagnosis >> DTC P0223: TP Sensor >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC PRIORITY 

    If DTC P0222 or P0223 is displayed with DTC P0643, first perform the confirmation procedure (trouble diagnosis) for DTC P0643.

    Is DTC P0643 detected?

    YES

    Perform diagnosis for P0643. Refer to DTC Description .

    NO

    GO TO 2.

  2. CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY 
    1. Disconnect electric throttle control actuator harness connector.
    2. Turn ignition switch ON.
    3. Check the voltage between electric throttle control actuator harness connector and ground.

      +

      -

      Voltage

      (Approx.)

      Electric throttle control actuator

      Connector

      Terminal

      F50

      5

      Ground

      5 V

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 3.

  3. CHECK THROTTLE POSITION SENSOR 1 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.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F50

      5

      F78

      35

      Existed
    4. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for ECM power supply circuit. Refer to Diagnosis Procedure .

    NO

    Repair or replace error-detected parts.

  4. CHECK THROTTLE POSITION SENSOR 1 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.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F50

      4

      F78

      44

      Existed
    4. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace error-detected parts.

  5. CHECK ECM GROUND CIRCUIT 
    1. Check the continuity between ECM harness connector and ground.

      ECM

      --

      Continuity

      Connector

      Terminal

      F78

      2

      Ground

      Existed

      7

      F79

      87

      88

      95

      E32

      199

      201

      204
    2. Also check harness for short to power.

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    Repair or replace error-detected parts.

  6. CHECK THROTTLE POSITION SENSOR 1 INPUT SIGNAL CIRCUIT 
    1. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

      Electric throttle control actuator

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F50

      6

      F78

      43

      Existed
    2. Also check harness for short to ground and short to power.

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    Repair or replace error-detected parts.

  7. CHECK THROTTLE POSITION SENSOR 

    Refer to Component Inspection (Throttle Position Sensor) .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace malfunctioning electric throttle control actuator. Refer to INTAKE MANIFOLD COLLECTOR .

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