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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 P084C: 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

    INSPECTINON END

    NO

    GO TO 2.

  2. CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 1) 
    1. Turn ignition switch OFF.
    2. Disconnect TCM connector and CVT unit connector.
    3. Check continuity between TCM harness connector terminals and CVT unit harness connector terminals.

      TCM

      CVT unit

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F16

      11

      F46

      18

      Existed

      17

      13

      26

      22

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace malfunctioning parts.

  3. CHECK CIRCUIT BETWEEN TCM AND CVT UNIT (PART 2) 

    Check continuity between TCM harness connector terminals and ground.

    TCM

    --

    Continuity

    Connector

    Terminal

    F16

    17

    Ground

    Not existed

    26

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Repair or replace malfunctioning parts.

  4. CHECK TERMINAL CORD ASSEMBLY (PART 1) 
    1. Disconnect terminal cord assembly. Refer to CONTROL VALVE : Removal & Installation .
    2. Check continuity between CVT unit harness connector terminals and control valve harness connector terminals.

      CVT unit

      Control valve

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F209

      13

      F207

      10

      Existed

      18

      13

      22

      11

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace malfunctioning parts.

  5. CHECK TERMINAL CORD ASSEMBLY (PART 2) 

    Check damage of terminal cord assembly.

    Is the inspection result normal?

    YES

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

    NO

    Repair or replace malfunctioning parts.