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Home >> Ford >> 2018 >> Transit Connect XL, Van Cargo >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission, Transfer Case And Power Transfer Unit (2 Of 2) >> Diagnosis And Testing >> Automatic Transmission, Transfer Case and Power Transfer Unit - 2.5L Duratec (125kW/170PS) >> Pinpoint Tests >> Pinpoint Test K : DTCS P0715, P0717, P0718

Pinpoint Test K : DTCS P0715, P0717, P0718

  1. Refer to Transmission Controls - 6F35 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 diagnostic trouble codes (DTCs).

    Are diagnostic trouble codes (DTCs) P0715, P0717, P0718 and/or P0720 present? 

    Yes  For diagnostic trouble codes (DTCs) P0715, P0717 and P0718, GO to  K2 For DTC P0715 and P0720, GO to  K6
    No  REFER to: Diagnosis By Symptom .

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

    • Ignition OFF.

    • Disconnect Transmission Vehicle Harness C143.

    • Disconnect PCM C175E.

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

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C143-2
      GFD304648Courtesy of FORD MOTOR COMPANY
      		 C175E-27

    Is the resistance less than 3 ohms? 

    Yes  GO to  K3
    No  REPAIR the circuit.

  4. K3 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C143-2
      GFD304648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  K4
    No  REPAIR the circuit.

  5. K4 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR SIGNAL CIRCUIT FOR A SHORT TO POWER

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C143-2
      GFD304649Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  K5

  6. K5 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR GROUND CIRCUIT

    • Ignition OFF.

    • Connect PCM C175E.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C143-2
      GFD304649Courtesy of FORD MOTOR COMPANY
      		 C143-1

    Is voltage less than 4.8 volts? 

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

  7. K6 CHECK THE TSS (TURBINE SHAFT SPEED) SENSOR VEHICLE POWER CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect Transmission Vehicle Harness C143.

    • 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
      C143-3
      GFD304649Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage less than 9.5 volts? 

    Yes  INSPECT and REPAIR the circuit. If an open circuit is not found, Refer to PCM Guided Routine Testing .
    No  CLEAR the DTC. If diagnostic trouble codes (DTCs) P0715 and/or P0720 return, Refer to PCM Guided Routine Testing .
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