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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Automatic Transmission (Re0F10D) (DTC/Circuit Diagnosis)) >> DTC Diagnosis >> Transmission (TCM) >> DTC P084D: Transmission Fluid Pressure Sen/SW H >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK TCM INPUT SIGNALS 
    1. Turn ignition switch OFF.
    2. Start the engine.
    3. Check voltage between TCM harness connector terminal and ground.

      +

      -

      Condition

      Voltage

      TCM

      Connector

      Terminal

      F16

      17

      Ground

      • Shift position: "N" position
      • At idle

      0.70- 0.85V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 2.

  2. CHECK PRIMARY PRESSURE SENSOR POWER CIRCUIT 
    1. Turn ignition switch OFF.
    2. Connect TCM connector.
    3. Disconnect CVT unit connector.
    4. Turn ignition switch ON.
    5. Check voltage between CVT unit harness connector terminal and ground.

      +

      -

      Voltage

      (Approx.)

      CVT unit

      Connector

      Terminal

      F46

      22

      Ground

      5.0 V

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace malfunctioning parts.

  3. CHECK PRIMARY PRESSURE SENSOR SIGNAL CIRCUIT 

    Check voltage between CVT unit harness connector terminal and ground.

    +

    -

    Voltage

    (Approx.)

    CVT unit

    Connector

    Terminal

    F46

    13

    Ground

    0 V

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace malfunctioning parts.

  4. CHECK TERMINAL CORD ASSEMBLY 
    1. Turn ignition switch OFF.
    2. Remove terminal cord assembly. Refer to CONTROL VALVE : Removal & Installation .
    3. Check damage of terminal cord assembly.

    Is the inspection result normal?

    YES

    There is malfunction of secondary pressure sensor. Replace control valve assembly. Refer to CONTROL VALVE : Removal & Installation .

    NO

    Repair or replace malfunctioning parts.