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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1807 (Automatic Transmission - 4R70E/4R75E - F150 & Mark LT) >> Diagnostic Tests >> Pinpoint Tests - OSC Equipped Vehicle >> Pinpoint Tests >> Pinpoint Test C: Digital Transmission Range (Tr) Sensor

Pinpoint Test C: Digital Transmission Range (Tr) Sensor

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to the Digital Transmission Range (TR) Sensor Connector illustration Transmission Connector Layouts  in this article.
NOTE: Refer to the Digital Transmission Range (TR) Sensor Diagnosis Chart Transmission Connector Layouts  in this article.
  1. C1 VERIFY DTCs 
    • Select PARK.
    • Key in OFF position.
      • NOTE: DTC codes P0705 and P0708 cannot be set by an incorrectly adjusted digital transmission range (TR) sensor.
    • Carry out on-board diagnostic test.
    • Are only DTC codes P0705, P0708 present? 
    1. YES  : Go to  C4.
    2. NO  : Go to  C2.
  2. C2 VERIFY DIGITAL TRANSMISSION RANGE SENSOR ALIGNMENT 
    • Check to make sure the digital TR sensor harness connector is fully seated, pins are fully engaged in connector and in good condition before proceeding.
    • Apply the parking brake.
    • Select NEUTRAL.
    • Disconnect the shift cable/linkage from the manual lever.
    • Verify that the TR Sensor Alignment Gauge fits in the appropriate slots.
    • Is the digital TR sensor adjustment OK? 
    1. YES  : Go to  C3.
    2. NO  : ADJUST the digital TR sensor. PLACE transmission range selector lever in P and CLEAR DTCs. REPEAT OBD Tests. Go to  C3 .
  3. C3 VERIFY SELECTOR LEVER CABLE/LINKAGE ADJUSTMENT 
    • Place the manual lever in the overdrive position.
    • Select DRIVE.
    • Reconnect the selector lever cable/linkage.
    • Verify that the selector lever cable/linkage is adjusted OK.
    • Is the selector lever cable/linkage adjusted OK?  
    1. YES  : Go to  C4.
    2. NO  : ADJUST the selector lever cable/linkage. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS article.
  4. C4 CHECK ELECTRICAL SIGNAL OPERATION 
    • Select PARK.
    • Disconnect: Digital TR Sensor
      CAUTION: Do not pry on connector. This will damage the connector and result in a transmission concern.

      Press the button and pull out on the digital TR harness connector.

    • Inspect both ends of the connector for damage or pushed-out pins, corrosion, loose wires and missing or damaged seals.
    • Are the connector, pins and harness damaged? 
    1. YES  : REPAIR as required. CLEAR DTCs and REPEAT OBD Tests.
    2. NO  : If diagnosing a DTC, go to  C5 .

      If diagnosing a starting concern or a reversing lamp concern, go to  C10 .

  5. C5 CHECK ELECTRICAL SYSTEM OPERATION (DIGITAL TR AND PCM) 
    • Key in OFF position.
    • Connect the diagnostic tool.
    • Connect: Digital TR Sensor
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: TR PIDS TR, TR_D, TR_V
    • Move transmission range selector lever into each gear and stop.
    • Observe any of the following PIDs, TR and TR_D, TR_V (vehicle dependent) while wiggling harness, tapping on sensor, or driving the vehicle. Use PIDs TR, and TR_D for DTCs P0705, P1704, and P1705. Use PIDs TR, and TR_V for DTC P0708.
    • Compare the PIDs to the Digital Transmission Range (TR) Sensor Diagnosis Chart.
    • Do the PIDs TR, TR_D and TR_V match the Digital Transmission Range (TR) Sensor Diagnosis chart, and does the TR_D PID remain steady when the harness is wiggled, the sensor is tapped, or the vehicle driven? 
    1. YES  : The problem is not in the digital TR sensor system. REFER to Diagnosis By Symptom  in this article for further diagnosis.
    2. NO  : If TR_D changes when wiggling harness, tapping on the sensor, or driving the vehicle, the problem may be intermittent.

      Go to  C6.

  6. C6 CHECK DIGITAL TRANSMISSION RANGE SENSOR OPERATION 
    • Disconnect: Digital TR Sensor
      CAUTION: Do not pry on the connector. This will damage the connector and result in a transmission concern.
    • Connect: TR-E Cable to Transmission Tester
    • Connect: TR-E Cable to Digital TR Sensor
    • Place the Digital TR Overlay onto Transmission Tester.
    • Carry out Sensor Test as instructed on the Digital TR Overlay.
    • Does the status lamp on the tester TRS-E cable match the selected gear positions? 
    1. YES  : Concern is not in the digital TR sensor, go to  C7 .
    2. NO  : INSTALL a new digital TR sensor. CLEAR DTCs and REPEAT OBD Tests.
  7. C7 CHECK PCM HARNESS CIRCUITS FOR OPENS 
    • Key in OFF position.
    • Disconnect: PCM
    • Inspect for damaged or pushed-out pins, corrosion or loose wires.
    • Disconnect: Digital TR Sensor
      CAUTION: Do not pry on the connector. This will damage the connector and result in a transmission concern.

      Disconnect the digital TR sensor connector.

    • Measure the resistance between the PCM pin 43 and signal return circuit pin 2 at digital TR sensor connector harness side.
      • Fig 1: Measuring Resistance Between PCM Pin 43 And Signal Return Circuit Pin 2
      GF0003444Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin 17 and TR1 circuit pin 4 at digital TR sensor connector harness side.
      • Fig 2: Measuring Resistance Between PCM Pin 17 And TR1 Circuit Pin 4
      GF0003445Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin 18 and TR2 circuit pin 5 at digital TR sensor connector harness side.
      • Fig 3: Measuring Resistance Between PCM Pin 18 And TR2 Circuit Pin 5
      GF0003446Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin 32 and TR4 circuit pin 6 at digital TR sensor connector harness side.
      • Fig 4: Measuring Resistance Between PCM Pin 32 And TR4 Circuit Pin 6
      GF0003447Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM pin 19 and TR3A circuit pin 3 at digital TR sensor connector harness side.
      • Fig 5: Measuring Resistance Between PCM Pin 19 And TR3A Circuit Pin 3
      GF0003448Courtesy of FORD MOTOR CO.
    • Are all resistances less than 5 ohms? 
    1. YES  : Go to  C8.
    2. NO  : REPAIR open circuit(s). RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests.
  8. C8 CHECK PCM HARNESS CIRCUITS FOR SHORT TO GROUND OR POWER 
    • Measure the resistance between PCM pin 43 and chassis ground.
      • Fig 6: Measuring Resistance Between PCM Pin 43 And Chassis Ground
      GF0003449Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 17 and chassis ground.
      • Fig 7: Measuring Resistance Between PCM Pin 17 And Chassis Ground
      GF0003450Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 18 and chassis ground.
      • Fig 8: Measuring Resistance Between PCM Pin 18 And Chassis Ground
      GF0003451Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 32 and chassis ground.
      • Fig 9: Measuring Resistance Between PCM Pin 32 And Chassis Ground
      GF0003452Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 19 and chassis ground.
      • Fig 10: Measuring Resistance Between PCM Test Pin 19 And Chassis Ground
      GF0003453Courtesy of FORD MOTOR CO.
    • Are all resistances greater than 10,000 ohms? 
    1. YES  : Go to  C9.
    2. NO  : REPAIR short circuit(s). RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests.
  9. C9 CHECK FOR SHORT BETWEEN TR/PCM INPUT SIGNAL CIRCUITS 
    • Measure the resistance between PCM pin 17 and PCM pins 18, 19, and 32.
      • Fig 11: Measuring Resistance Between PCM Test Pin 17 And PCM Test Pins 18, 19 And 32
      GF0003454Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 18 and PCM pins 17, 19, and 32.
      • Fig 12: Measuring Resistance Between PCM Test Pin 18 And PCM Test Pins 17, 19 And 32
      GF0003455Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 19 and PCM pins 17, 18, and 32.
      • Fig 13: Measuring Resistance Between PCM Test Pin 19 And PCM Test Pins 17, 18 And 32
      GF0003456Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM pin 32 and PCM pins 17, 18, and 19.
      • Fig 14: Measuring Resistance Between PCM Test Pin 32 And PCM Test Pins 17, 18 And 19
      GF0003457Courtesy of FORD MOTOR CO.
    • Are all the resistances greater than 10,000 ohms? 
    1. YES  : INSTALL a new PCM. REFER to FUEL CHARGING AND CONTROLS - 4.2L article, FUEL CHARGING AND CONTROLS - 4.6L (2V) article or FUEL CHARGING AND CONTROLS - 5.4L (3V) article. RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests.
    2. NO  : REPAIR shorts on circuits having less than 10,000 ohms between other TR/PCM input signal circuits. RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests.
  10. C10 CHECK THE NON-PCM INTERNAL CIRCUITS OF SENSOR 
    • Connect: TRS-E Cable to Transmission Tester
    • Connect: TRS-E Cable to Digital TR Sensor
    • Place the Digital TR Overlay onto Transmission Tester.
    • Carry out Switch Test as instructed on the Digital TR Overlay.
    • Does the status lamp on the tester indicate RED for the correct gear position? 
    1. YES  : Concern is not in the digital TR sensor. For starting system concerns, REFER to FUEL CHARGING AND CONTROLS - 4.2L article, FUEL CHARGING AND CONTROLS - 4.6L (2V) article or FUEL CHARGING AND CONTROLS - 5.4L (3V) article. For reversing lamp concerns, REFER to EXTERIOR LIGHTING article. For optional circuits, REFER to the INTRODUCTION - GASOLINE ENGINES article for diagnosis.
    2. NO  : INSTALL a new digital TR sensor. CLEAR DTCs. REPEAT OBD Tests.
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