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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Automatic Transmission (Re0F10E) (DTC/Circuit Diagnosis) (Except Hybrid) (2 Of 2)) >> DTC/Circuit Diagnosis >> DTC P0715: Input Speed Sensor A >> Diagnosis Procedure >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK PRIMARY SPEED SENSOR POWER CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect primary speed sensor connector.
    3. Turn ignition switch ON.
    4. Check voltage between primary speed sensor harness connector terminal and ground.
      + - Voltage
      Primary speed sensor
      Connector Terminal
      F35 3 Ground 10 - 16 V

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    GO TO STEP   6  .

  2. CHECK PRIMARY SPEED SENSOR GROUND CIRCUIT

    Check continuity between primary speed sensor harness connector terminal and ground.

    Primary speed sensor - Continuity
    Connector Terminal
    F35 1 Ground Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace malfunctioning parts.

  3. CHECK CIRCUIT BETWEEN PRIMARY SPEED SENSOR AND TCM (PART 1)

    1. Turn ignition switch OFF.
    2. Disconnect TCM connector.
    3. Check continuity between primary speed sensor harness connector terminal and TCM harness connector terminal.
      Primary speed sensor TCM Continuity
      Connector Terminal Connector Terminal
      F35 2 F25 35 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    Repair or replace malfunctioning parts.

  4. CHECK CIRCUIT BETWEEN PRIMARY SPEED SENSOR AND TCM (PART 2)

    Check continuity between primary speed sensor harness connector terminal and ground.

    Primary speed sensor - Continuity
    Connector Terminal
    F35 2 Ground Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace malfunctioning parts.

  5. CHECK TCM INPUT SIGNALS

    1. Connect all of disconnected connectors.
    2. Lift the vehicle.
    3. Start the engine.
    4. Check frequency of primary speed sensor.
      + - Condition Frequency
      (Approx.)
      TCM
      Connector Terminal
      F25 35 Ground
      • Selector lever: "M1" position
      • Vehicle speed: 20 km/h (12 MPH)
      		 700 Hz
      GNSJSDIA1905GB-905Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Replace primary speed sensor. Refer to REMOVAL AND INSTALLATION .

  6. DETECT MALFUNCTIONING ITEMS

    Check the following items:

    • Harness open circuit or short circuit between ignition switch and IPDM E/R. Refer to WIRING DIAGRAM - IGNITION POWER SUPPLY - .
    • Harness open circuit or short circuit between IPDM E/R connector terminal 61 and primary speed sensor connector terminal 3.
    • 10A fuse (No. 46, located in the IPDM E/R). Refer to IPDM E/R TERMINAL ARRANGEMENT .
    • IPDM E/R

    Is the check result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    Repair or replace malfunctioning parts.

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