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Pinpoint Test C: Digital Transmission Range (Tr) Sensor

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to Transmission Connector Layouts .
  1. C1 VERIFY DTCs 
    • Select PARK.
    • Key in OFF position.
    • Carry out On-Board Diagnostic Test.
    • Are only DTCs P0705 and P0708 present? 
    1. YES  : Go to  C4.
    2. NO  : Go to  C2.
  2. C2 VERIFY DIGITAL TRANSMISSION RANGE (TR) SENSOR ALIGNMENT 
    • Select PARK.
    • Key in OFF position.
    • Check to make sure the digital TR sensor harness connector is fully seated, terminals are fully engaged in connector and in good condition before proceeding.
    • Apply the parking brake.
    • Select NEUTRAL.
    • Disconnect the selector lever cable/linkage from the manual lever.
    • Verify that the TR Sensor Alignment Gauge fits in the appropriate slots.
    • Is the digital TR sensor correctly adjusted? 
    1. YES  : Go to  C3.
    2. NO  : ADJUST the digital TR sensor. REFER to Digital Transmission Range (TR) Sensor . PLACE selector lever into PARK and CLEAR DTCs. RERUN OBD Tests. Go to  C3.
  3. C3 VERIFY SELECTOR LEVER CABLE/LINKAGE ADJUSTMENT 
    • Connect the selector lever cable/linkage.
    • Place the selector lever in D.
    • Verify that the selector lever cable/linkage is correctly adjusted. Refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS .
    • Is the selector lever cable/linkage correctly adjusted? 
    1. YES  : Go to  C4.
    2. NO  : ADJUST the selector lever cable/linkage. REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS . Go to  C4.
  4. C4 CHECK ELECTRICAL SIGNAL OPERATION 
    • Select PARK.
    • Disconnect: Digital TR Sensor C167
      CAUTION: Do not pry on connector. This will damage the connector and result in a transmission concern.
    • Inspect both ends of the connector for damage or pushed-out pins, corrosion, loose wires and missing or damaged seals.
    • Is there damage to the connector, pins or harness? 
    1. YES  : REPAIR as necessary. CLEAR DTCs and RERUN OBD Tests.
    2. NO  : If diagnosing a DTC, go to  C5.

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

  5. C5 CHECK ELECTRICAL SYSTEM OPERATION (DIGITAL TR AND PCM) 
    • Key in OFF position.
    • Connect: Digital TR Sensor C167
    • Connect the diagnostic tool.
    • Key in ON position.
    • Access the transmission PIDs.
    • Move transmission range selector lever into each gear and stop.
    • Observe the PIDs, TR, TR1, TR2, TR3, TR3_V and TR4 while wiggling harness, tapping on sensor or driving the vehicle.
    • Compare the PIDs to the Digital Transmission Range (TR) Sensor Diagnosis Chart.
    • Do the PIDs TR, TR1, TR2, TR3, TR3_V and TR4 match the Digital Transmission Range (TR) Sensor Diagnosis chart, and do the PIDs remain steady when the harness is wiggled, the sensor is tapped on or the vehicle driven? 
    1. YES  : The problem is not in the digital TR sensor system. REFER to Diagnosis By Symptom  for further diagnosis.
    2. NO  : If the PIDs change when wiggling harness, tapping on the sensor or driving the vehicle, the problem may be intermittent. Go to  C6.
  6. C6 CHECK DIGITAL TR SENSOR OPERATION 
    • Disconnect: Digital TR Sensor C167
      • Fig 1: Measuring Resistance Between Digital TR Sensor Pin 10 & 12, Component Side With Selector Lever In PARK & NEUTRAL
      GF0009956Courtesy of FORD MOTOR CO.
      CAUTION: Do not pry on connector. This will damage the connector and result in a transmission concern.
    • Measure the resistance between digital TR sensor pin 10 and pin 12, component side, with the selector lever in PARK and then NEUTRAL.
      • Fig 2: Measuring Resistance Between Digital TR Sensor C167-2, Pins 4 & 5, Component Side With Selector Lever In REVERSE
      GF0015425Courtesy of FORD MOTOR CO.
    • Measure the resistance between digital TR sensor C167-2, and pins 4 and 5, component side, with the selector lever in REVERSE.
    • Are all the resistances less than 5 ohms? 
    1. YES  : Concern is not in the digital TR sensor, REFER to STARTING SYSTEM or EXTERIOR LIGHTING .
    2. NO  : INSTALL a new digital TR sensor. CLEAR DTCs and REPEAT OBD Tests.
  7. C7 CHECK DIGITAL TR SENSOR OPERATION 
    • Disconnect: Digital TR Sensor C167
      • Fig 3: Measuring Resistance Between Digital TR Sensor Pin 2 & Pins 3, 4, 5 And 6, Component Side
      GF0009958Courtesy of FORD MOTOR CO.
      CAUTION: Do not pry on connector. This will damage the connector and result in a transmission concern.
    • Measure the resistance between digital TR sensor pin 2 and pins 3, 4, 5 and 6, component side, with the selector lever in each position. Compare the measurements to the Digital Transmission Range (TR) Sensor Diagnosis Chart.
    • Do the measurements match Digital Transmission Range (TR) Sensor Diagnosis Chart? 
    1. YES  : Concern is not in the digital TR sensor, go to  C8.
    2. NO  : INSTALL a new digital TR sensor. CLEAR DTCs and REPEAT OBD Tests.
  8. C8 CHECK PCM HARNESS CIRCUITS FOR OPENS 
    • Key in OFF position.
    • Disconnect: PCM C175T
    • Inspect for damaged or pushed-out pins, corrosion or loose wires.
    • Disconnect: Digital TR Sensor C167
      CAUTION: Do not pry the connector. This will damage the connector and result in a transmission concern.
      • Fig 4: Checking PCM Harness Circuits For Opens (1 Of 5)
      GF0009959Courtesy of FORD MOTOR CO.
    • Measure the resistance between TR sensor C167-2, circuit 359 (GY/RD) harness side and signal return PCM C175T-41, circuit 359 (GY/RD) harness side.
      • Fig 5: Checking PCM Harness Circuits For Opens (2 Of 5)
      GF0009960Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-16, circuit 1144 (YE/BK) harness side and TR sensor C167-4, circuit 1144 (YE/BK) harness side.
      • Fig 6: Checking PCM Harness Circuits For Opens (3 Of 5)
      GF0009961Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-17, circuit 1145 (LB/BK) harness side and TR sensor C167-5, circuit 1145 (LB/BK) harness side.
      • Fig 7: Checking PCM Harness Circuits For Opens (4 Of 5)
      GF0009962Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-28, circuit 1143 (WH/BK) harness side and TR sensor C167-6, circuit 1143 (WH/BK) harness side.
      • Fig 8: Checking PCM Harness Circuits For Opens (5 Of 5)
      GF0009963Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-27, circuit 1268 (RD/BK) harness side and TR sensor C167-3, circuit 1268 (RD/BK) harness side.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  C9.
    2. NO  : REPAIR the circuits. TEST the system for normal operation.
  9. C9 CHECK PCM HARNESS CIRCUITS FOR SHORT TO GROUND OR POWER 
      Fig 9: Measuring Resistance Between PCM C175T-41, Circuit 359 (GY/RD) Harness Side
      GF0015426Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-41, circuit 359 (GY/RD) harness side and TR C167-10, circuit 32 (WH/PK) harness side, and TR C167-12, circuit 12 (WH/PK), harness side and ground.
      • Fig 10: Measuring Resistance Between PCM C175T-16, Circuit 1144 (YE/BK) Harness Side & Ground
      GF0009964Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-16, circuit 1144 (YE/BK) harness side and ground; and PCM C175T-41, circuit 359 (GY/RD) harness side and ground.
      • Fig 11: Measuring Resistance Between PCM C175T-17, Circuit 1145 (LB/BK) Harness Side & Ground
      GF0009965Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-17, circuit 1145 (LB/BK) harness side and ground; and PCM C175T-41, circuit 359 (GY/RD) harness side and ground.
      • Fig 12: Measuring Resistance Between PCM C175T-28, Circuit 1143 (WH/BK) Harness Side & Ground
      GF0009967Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-28, circuit 1143 (WH/BK) harness side and ground; and PCM C175T-41, circuit 359 (GY/RD) harness side and ground.
      • Fig 13: Measuring Resistance Between PCM C175-27, Circuit 1268 (RD/BK) Harness Side & Ground
      GF0009966Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175-27, circuit 1268 (RD/BK) harness side and ground; and PCM C175T-41, circuit 359 (GY/RD) harness side and ground.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  C10.
    2. NO  : REPAIR the circuits. TEST the system for normal operation. CLEAR DTCs. RERUN OBD Tests.
  10. C10 CHECK FOR SHORT BETWEEN TR/PCM INPUT SIGNAL CIRCUITS 
      Fig 14: Measuring Resistance Between PCM C175T-16, Circuit 1144 (YE/BK) Harness Side
      GF0009968Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-16, circuit 1144 (YE/BK) harness side; and PCM C175T-17, circuit 1145 (LB/BK), PCM C175T-27, circuit 1268 (RD/BK) and PCM C175T-28, circuit 1143 (WH/BK) harness side.
      • Fig 15: Measuring Resistance Between PCM C175T-17, Circuit 1145 (LB/BK) Harness Side
      GF0009969Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-17, circuit 1145 (LB/BK) harness side; and between PCM C175T-27, circuit 1268 (RD/BK) and PCM C175T-28, circuit 1143 (WH/BK) harness side.
      • Fig 16: Measuring Resistance Between PCM C175T-27, Circuit 1268 (RD/BK) Harness Side
      GF0009970Courtesy of FORD MOTOR CO.
    • Measure the resistance between PCM C175T-27, circuit 1268 (RD/BK) harness side; and between PCM C175T-28, circuit 1143 (WH/BK) harness side.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : INSTALL a new PCM. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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