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Home >> Ford >> 2003 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2584 (Automatic Transmission 5R110W (TORQSHIFT(R)) -- F450-F550 Super Duty) >> Diagnosis & Testing >> Pinpoint Tests - OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test D: Turbine Shaft Speed (TSS), Intermediate Shaft Speed & Output Shaft Speed (OSS) Sensors

Pinpoint Test D: Turbine Shaft Speed (TSS), Intermediate Shaft Speed & Output Shaft Speed (OSS) Sensors

WARNING: This page is about a different car, the 2011 Ford F550 Super Duty and 2011 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the Transmission Vehicle Harness Connector illustration within the TRANSMISSION CONNECTOR LAYOUTS  procedure in this service information.
NOTE: Refer to the Transmission Internal Harness Connector illustration within the TRANSMISSION CONNECTOR LAYOUTS  procedure in this service information.
NOTE: Read and record all DTCs.
NOTE: Use the PID Chart for available diagnostic PIDs. Refer to DIAGNOSTIC PARAMETERS IDENTIFICATION (PID) CHART  in this service information.
  1. D1 ELECTRONIC DIAGNOSTICS 
    • Select PARK.
    • Ignition OFF.
    • Check to make sure transmission vehicle harness C1385, C193, C1387 and C175T are fully seated, terminals are fully engaged in the connector and are in good condition before proceeding.
    • Connect the scan tool.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: PID List.
    • Select and monitor the appropriate PID for the suspected sensor(s): Turbine Shaft Speed (TSS) sensor, intermediate shaft speed sensor or Output Shaft Speed (OSS) sensor.
      PID DESCRIPTION

      PID Description Value
      ISS_SRC Unfiltered intermediate shaft speed signal rpm
      OSS_SRC Unfiltered OSS  signal rpm
      TSS_SRC Unfiltered TSS  signal rpm
    • Can the appropriate sensor(s) be selected and monitored? 
    • Yes:  Continue to monitor the suspect sensor(s). GO to  D2
    • No:  REPEAT procedure to enter PID. If the sensor(s) cannot be monitored using the diagnostic equipment, REFER to the INTRODUCTION article for diagnosis of the PCM.
  2. D2 DRIVE CYCLE TEST 
    • While monitoring the appropriate sensor PID, drive the vehicle so that the transmission upshifts and downshifts through all gears.
    • Does the TSS  , intermediate shaft speed sensor or OSS  sensor rpm PIDs increase and decrease with engine and vehicle speed?
    • Yes:  GO to  D3
    • No:  If the TSS  , intermediate shaft speed sensor or OSS  sensor rpm PID does not increase and decrease with engine and vehicle speed, the issue may be found with the vehicle harness, PCM, sensor or internal hardware. GO to  D4.
  3. D3 DRIVE CYCLE TEST ERRATIC 
    • While monitoring the appropriate sensor PID, drive the vehicle so that the transmission upshifts and downshifts through all gears.
    • Is the TSS  , intermediate shaft speed sensor or OSS  sensor rpm PID signal erratic (drop to zero or near zero and return to normal operation)?
    • Yes:  If the sensor signal is erratic, there may be an intermittent concern in the vehicle harness sensor or connector. GO to  D4
    • No:  CLEAR the DTCs. RERUN the On-Board Diagnostic (OBD) test.
  4. D4 CHECK FOR SENSOR BATTERY VOLTAGE 
    • Ignition OFF.
    • Disconnect: OSS  Sensor C193.
    • Disconnect: TSS  /Intermediate Shaft Speed Sensor C1387.
    • Inspect for damaged or pushed-out terminals, corrosion or loose wires.
    • Ignition ON.
    • For the OSS  , measure the voltage between C1387-1, circuit LE111 (VT/GN), harness side and ground.
      Fig 1: Measuring Voltage Between C1387-1, Circuit LE111 (VT/GN), Harness Side And Ground
      G07482157Courtesy of FORD MOTOR CO.
    • For the TSS  /intermediate shaft speed sensor, measure the voltage between C1387-1, circuit LE111 (VT/GN), harness side and ground.
      Fig 2: Measuring Voltage Between C1387-1, Circuit LE111 (VT/GN), Harness Side And Ground
      G07482158Courtesy of FORD MOTOR CO.
    • Is voltage greater than 10 volts? 
    • Yes:  GO to  D5
    • No:  REPAIR the open in circuit LE111 (VT/GN). CLEAR the DTCs. TEST the system for normal operation.
  5. D5 CHECK THE TRANSMISSION VEHICLE HARNESS CIRCUITS FOR AN OPEN 
    • Disconnect: PCM C175T.
    • Disconnect: Transmission Vehicle Harness C1385.
    • For TSS  /intermediate shaft speed sensor, measure the resistance between the speed sensor C1387 and PCM C175T using the following chart.
      CIRCUIT REFERENCE CHART

      PCM Connector Circuit Component
      C175T-41 RET24 (BN/BU) C1387-2
      C175T-37 VE744 (GY/BN) C1387-4
      C175T-1 VET33 (WH/OG) C1387-3
      C175T-3 LE111 (VT/GN) C1387-1
    • For OSS  , measure the resistance between OSS  C193 and PCM C175T using the following chart.
      CIRCUIT REFERENCE CHART

      PCM Connector Circuit Component
      C193-1 LE111 (VT/GN) C175T-3
      C193-2 RET04 (YE/OG) C175T-14
      C193-3 RET24 (BN/BU) C175T-41
      Fig 3: Measuring Resistance Between OSS C193 And PCM C175T
      G07482159Courtesy of FORD MOTOR CO.
    • Is resistance less than 5 ohms? 
    • Yes:  GO to  D6
    • No:  REPAIR the circuit that is open. CLEAR the DTCs. TEST the system for normal operation.
  6. D6 CHECK THE TRANSMISSION VEHICLE HARNESS CIRCUITS FOR A SHORT TO GROUND 
    • Measure the resistance between TSS  /intermediate shaft speed sensor C1387, harness side and ground using the following chart.
      CIRCUIT REFERENCE CHART

      TSS  /Intermediate Shaft Speed Sensor Circuit Ground
      C1387-1 LE111 (VT/GN) Ground
      C1387-2 RET24 (BN/BUT) Ground
      C1387-3 VET33 (WH/OG) Ground
      C1387-4 VE744 (GY/BN) Ground
    • Measure the resistance between OSS  C193, harness side and ground using the following chart.
      CIRCUIT REFERENCE CHART

      OSS  Circuit Ground
      C193-1 LE111 (VT/GN) Ground
      C193-2 RET04 (YE/OG) Ground
      C193-3 RET24 (BN/BU) Ground
      Fig 4: Measuring Resistance Between OSS C193, Harness Side And Ground
      G07482160Courtesy of FORD MOTOR CO.
    • Is resistance greater than 10,000 ohms? 
    • Yes:  If DTC P0715, P0717, P0718, P0719, P0793 and/or P0794 were set, REPLACE the TSS  /intermediate shaft speed sensor. If DTC P0720, P0721 and/or P0722 were set, REPLACE the OSS  sensor. CLEAR the DTCs. TEST the system for normal operation.
    • No:  INSPECT and REPAIR the circuit shorted to ground. If a short to ground was not found, REPLACE the PCM. TEST the system for normal operation.
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