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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1376 (Automatic Transmission) >> Diagnosis And Testing >> 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 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. 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 preceding these pinpoint tests.
NOTE: Refer to the DIGITAL TRANSMISSION RANGE (TR) SENSOR DIAGNOSIS CHART  preceding these pinpoint tests.
  1. C1 VERIFY DIAGNOSTIC TROUBLE CODES 
      WARNING: If equipped with fire suppression system, depower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM .
    • With the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING & LIFTING .
    • Vehicle in PARK.
    • Key in OFF position.
      • NOTE: DTC codes P0705 and P0708 cannot be set by an incorrectly adjusted digital TR sensor.
    • Carry out-on board diagnostic test.
    • Are only DTC codes P0705, P0708 present? 

    Yes  : GO to  C4.

    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.
    • Vehicle in 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? 

    Yes  : GO to C3.

    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 SHIFT CABLE/LINKAGE ADJUSTMENT 

    Yes  : GO to C4.

    No  : ADJUST the shift cable/linkage. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS . If equipped with fire suppression system, GO to  C11.

  4. C4 CHECK ELECTRICAL SIGNAL OPERATION 
    • Vehicle in 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? 

    Yes  : REPAIR as required. CLEAR DTCs and REPEAT OBD Tests. If equipped with fire suppression system, GO to  C11.

    No  : If diagnosing a DTC, GO to C5.

    If diagnosing a starting concern or a reversing lamp concern, If equipped with fire suppression system, GO to  C10.

  5. C5 CHECK ELECTRICAL SYSTEM OPERATION (DIGITAL TR AND PCM) 
    • Key in OFF position.
    • Install Diagnostic Tool.
    • Connect: Digital TR Sensor.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan 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, and/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? 

    Yes  : The problem is not in the digital TR sensor system. REFER to DIAGNOSIS BY SYMPTOM  for further diagnosis. If equipped with fire suppression system, GO to  C11.

    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 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? 

    Yes  : Concern is not in the digital TR sensor, GO to C7.

    No  : INSTALL a new digital TR sensor. CLEAR DTCs and REPEAT OBD Tests. If equipped with fire suppression system, GO to  C11.

  7. C7 CHECK PCM HARNESS CIRCUITS FOR OPENS 
    • Key in OFF position.
    • Disconnect: Powertrain Control Module (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 test pin 41 and the signal return circuit pin 2 at digital TR sensor connector harness side.
      Fig 1: Measuring Resistance Between PCM Test Pin 41 And Signal Return Circuit Pin 2
      G04584214Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM test pin 16 and the TR1 circuit pin 4 at the digital TR sensor connector harness side.
      Fig 2: Measuring Resistance Between PCM Test Pin 16 And TR1 Circuit Pin 4
      G04584215Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM test pin 17 and the TR2 circuit pin 5 at the digital TR sensor connector harness side.
      Fig 3: Measuring Resistance Between PCM Test Pin 17 And TR2 Circuit Pin 5
      G04584216Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM test pin 28 and the TR4 circuit pin 6 at the digital TR sensor connector harness side.
      Fig 4: Measuring Resistance Between PCM Test Pin 28 And TR4 Circuit Pin 6
      G04584217Courtesy of FORD MOTOR CO.
    • Measure the resistance between the PCM test pin 27 and TR3A circuit pin 3 at the digital TR sensor connector harness side.
      Fig 5: Measuring Resistance Between PCM Test Pin 27 And TR3A Circuit Pin 3
      G04584218Courtesy of FORD MOTOR CO.
    • Are all resistances less than 5 ohms? 

    Yes  : GO to C8.

    No  : REPAIR open circuit(s). RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests. If equipped with fire suppression system, GO to  C11.

  8. C8 CHECK PCM HARNESS CIRCUITS FOR SHORT TO GROUND OR POWER 
    • Measure the resistance between PCM test pin 41 and chassis ground.
      Fig 6: Measuring Resistance Between PCM Test Pin 41 And Chassis Ground
      G04584219Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 16 and chassis ground.
      Fig 7: Measuring Resistance Between PCM Test Pin 16 And Chassis Ground
      G04584220Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 17 and chassis ground.
      Fig 8: Measuring Resistance Between PCM Test Pin 17 And Chassis Ground
      G04584221Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 28 and chassis ground.
      Fig 9: Measuring Resistance Between PCM Test Pin 28 And Chassis Ground
      G04584222Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 27 and chassis ground.
      Fig 10: Measuring Resistance Between PCM Test Pin 27 And Chassis Ground
      G04584223Courtesy of FORD MOTOR CO.
    • Are all resistances greater than 10,000 ohms? 

    Yes  : GO to C9.

    No  : REPAIR short circuit(s). RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests. If equipped with fire suppression system, GO to  C11.

  9. C9 CHECK FOR SHORT BETWEEN TR/PCM INPUT SIGNAL CIRCUITS 
    • Measure the resistance between PCM test pin 16 and PCM test pins 17, 27 and 28.
      Fig 11: Measuring The Resistance Between PCM Test Pin 16 And PCM Test Pins 17, 27 And 28
      G04584224Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 17 and PCM test pins 16, 27 and 28.
      Fig 12: Measuring The Resistance Between PCM Test Pin 17 And PCM Test Pins 16, 27 And 28
      G04584225Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 27 and PCM test pins 16, 17 and 28.
      Fig 13: Measuring The Resistance Between PCM Test Pin 27 And PCM Test Pins 16, 17 And 28
      G04584226Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM test pin 28 and PCM test pins 16, 17 and 27.
      Fig 14: Measuring The Resistance Between PCM Test Pin 28 And PCM Test Pins 16, 17 And 27
      G04584227Courtesy of FORD MOTOR CO.
    • Are all the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . RECONNECT all components. CLEAR DTCs. REPEAT OBD Tests. If equipped with fire suppression system, GO to  C11.

    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. If equipped with fire suppression system, GO to  C11.

  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? 

    Yes  : Concern is not in the digital TR sensor. For starting system concerns, REFER to STARTING SYSTEM . For reversing lamp concerns, REFER to EXTERIOR LIGHTING . For optional circuits, REFER to the INTRODUCTION - GASOLINE article. If equipped with fire suppression system, GO to C11.

    No  : INSTALL a new digital TR sensor. CLEAR DTCs. REPEAT OBD Tests. If equipped with fire suppression system, GO to C11.

  11. C11 REPOWER THE FIRE SUPPRESSION SYSTEM 
      WARNING: If equipped with fire suppression system, repower the system. For important safety warnings and procedures, refer to FIRE SUPPRESSION SYSTEM .
    • Verify that the fire suppression system is repowered. Refer to FIRE SUPPRESSION SYSTEM .
    • Is the fire suppression system repowered? 

    Yes  : Fire suppression system repowering is complete.

    No  : REFER to FIRE SUPPRESSION SYSTEM for fire suppression system depowering and repowering procedure.

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