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Home >> Ford >> 2018 >> Focus SEL, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Automatic Transmission - 6-Speed Automatic Transmission - 6F15 (2 Of2)) >> Diagnosis And Testing >> Automatic Transmission - 6-Speed Automatic Transmission - 6F15 >> Pinpoint Tests >> Pinpoint Test K : DTCS P0715, P0717, P0718

Pinpoint Test K : DTCS P0715, P0717, P0718

WARNING: This page is about a different variant/trim than selected.
  1. Refer to Transmission Controls - 6F15 for schematic and connector information.

    Normal Operation and Fault Conditions 

    The TSS sensor is a Hall-effect sensor that sends a signal to the PCM that indicates transmission turbine shaft input speed. The TSS sensor provides converter turbine speed information for TCC strategy.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    PCM P0715:00 Input/Turbine Shaft Speed Sensor "A" Circuit: No Sub Type Information No input from the TSS sensor.
    PCM P0717:00 Input/Turbine Shaft Speed Sensor "A" Circuit No Signal: No Sub Type Information No input from the TSS sensor.
    PCM P0718:00 Input/Turbine Shaft Speed Sensor "A" Circuit Intermittent: No Sub Type Information Unrealistic change in the TSS sensor signal, erratic or intermittently no input.

    Possible Sources 

    • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
    • TSS sensor
    • PCM

  2. K1 RETRIEVE AND RECORD ALL DTCS

    • Using the diagnostic scan tool, retrieve all DTCs.

    Are DTCs P0715, P0717, P0718 present? 

    Yes  GO to  K2
    No  REFER to: Diagnosis By Symptom .

  3. K2 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR VEHICLE POWER CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect Turbine Shaft Speed sensor C1520B.

    • Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1520B-3
      GFD440702Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  K3
    No  REPAIR the open circuit, if an open circuit is not found, Refer to PCM Guided Routine Testing . CARRY OUT the Transmission Strategy Download, REFER to: Transmission Strategy Download .

  4. K3 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR GROUND CIRCUIT

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1520B-3
      GFD440702Courtesy of FORD MOTOR COMPANY
      		 C1520B-1

    Is the voltage greater than 11 volts? 

    Yes  GO to  K4
    No  REPAIR the open circuit, if an open circuit is not found, Refer to PCM Guided Routine Testing . CARRY OUT the Transmission Strategy Download, REFER to: Transmission Strategy Download .

  5. K4 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR SIGNAL CIRCUIT FOR AN OPEN

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1520B-2
      GFD440702Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 4.5 volts? 

    Yes  INSTALL a new TSS sensor. REFER to: Turbine Shaft Speed (TSS) Sensor .
    No  INSPECT and REPAIR the circuit. If an open circuit is not found, Refer to PCM Guided Routine Testing . CARRY OUT the Transmission Strategy Download, REFER to: Transmission Strategy Download .
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