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Home >> Chrysler >> 2001 >> Sebring LX, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Diagnosis - Automatic Transmission - Coupe) >> Automatic Transaxle Diagnosis >> Diagnostic Trouble Code Procedures >> DTC 12: TP Sensor System (Open Circuit) >> Diagnosis

DTC 12: TP Sensor System (Open Circuit): Diagnosis

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tool: 

  1. STEP 1. Using scan tool MB991502, check data list item 11: TP Sensor. 
    CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502.
    1. Connect scan tool MB991502 to the data link connector.
    2. Turn the ignition switch to the "ON" position.
    3. Set scan tool MB991502 to the data reading mode for item 11, TP Sensor.
      • With the throttle valve in the idle position, voltage should measure between 535 and 735 mV.
      • With the throttle valve in the full-open position, voltage should measure between 4,500 and 5,500 mV.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage between 535 and 735 mV at idle, and between 4,500 and 5,500 mV in the full-open position? 

    YES  : It can be assumed that this malfunction is intermittent. Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS .

    NO:  Go to Step 2.

    Fig 1: Connecting Scan Tool MB991502 To Data Link Connector
    G04541806Courtesy of CHRYSLER CORP.
  2. STEP 2. Measure the TP sensor output voltage at the TP sensor connector B-07 by backprobing. 
    1. Do not disconnect connector B-07.
    2. Turn the ignition switch to the "ON" position.
      Fig 2: Locating TP Sensor Connector B-07
      G04541807Courtesy of CHRYSLER CORP.
    3. Measure the voltage between terminal 3 and ground by backprobing.
      • With the throttle valve in the idle position, voltage should measure between 0.535 and 0.735 volt.
      • With the throttle valve in the full-open position, the voltage should measure between 4.5 and 5.5 volts.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage between 0.535 and 0.735 volt at idle, and between 4.5 and 5.5 volts in the full-open position? 

    YES  : Go to Step 3.

    NO:  Go to  Step 8.

    Fig 3: Measuring Voltage Between Terminal 3 And Ground
    G04541808Courtesy of CHRYSLER CORP.
  3. STEP 3. Measure the TP sensor output voltage at PCM connector C-117 < 2.4L Engine > or C-119 < 3.0L Engine > by backprobing. 
    1. Do not disconnect connector C-117 < 2.4L Engine > or C-119 < 3.0L Engine >.
    2. Turn the ignition switch to the "ON" position.
      Fig 4: Identifying PCM Connector C-117 Or C-119
      G04541809Courtesy of CHRYSLER CORP.
    3. Measure the voltage between terminal 78 and ground by backprobing.
      • With the throttle valve in the idle position, voltage should measure between 0.535 and 0.735 volt.
      • With the throttle valve in the full-open position, voltage should measure between 4.5 and 5.5 volts.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage between 0.535 and 0.735 volt at idle, and between 4.5 and 5.5 volts in the full-open position? 

    YES  : Go to Step 4.

    NO:  Go to  Step 6.

    Fig 5: Measuring Voltage Between Terminal 78 And Ground
    G04541810Courtesy of CHRYSLER CORP.
  4. STEP 4. Check TP sensor connector B-07 and PCM connector C-117 < 2.4L Engine > or C-119 < 3.0L Engine > for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 5.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 6: Locating TP Sensor Connector B-07
    G04541811Courtesy of CHRYSLER CORP.
    Fig 7: Locating PCM Connector C-117 Or C-119
    G04541812Courtesy of CHRYSLER CORP.
  5. STEP 5. Using scan tool MB991502, check data list item 11: TP Sensor. 
    CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502.
    1. Connect scan tool MB991502 to the data link connector.
    2. Turn the ignition switch to the "ON" position.
    3. Set scan tool MB991502 to the data reading mode for item 11, TP Sensor.
      • With the throttle valve in the idle position, voltage should measure between 535 and 735 mV.
      • With the throttle valve in the full-open position, voltage should measure between 4,500 and 5,500 mV.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the sensor voltage between 535 and 735 mV at idle, and between 4,500 and 5,500 mV in the full-open position? 

    YES  : It can be assumed that this malfunction is intermittent. Refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS .

    NO:  Replace the PCM.

    Fig 8: Connecting Scan Tool MB991502 To Data Link Connector
    G04541813Courtesy of CHRYSLER CORP.
  6. STEP 6. Check TP sensor connector B-07 and PCM connector C-117 < 2.4L Engine > or C-119 < 3.0L Engine > for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 7.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 9: Locating TP Sensor Connector B-07
    G04541814Courtesy of CHRYSLER CORP.
    Fig 10: Locating PCM Connector C-117 Or C-119
    G04541815Courtesy of CHRYSLER CORP.
  7. STEP 7. Check the harness for open circuit or damage between TP sensor connector B-07 terminal 3 and PCM connector C-117 < 2.4L Engine > or C-119 < 3.0L Engine > terminal 78. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 5.

    NO:  Repair or replace the harness wire.

    Fig 11: Identifying TP Sensor Connector B-07
    G04541816Courtesy of CHRYSLER CORP.
    Fig 12: Identifying PCM Connector C-117 Or C-119
    G04541817Courtesy of CHRYSLER CORP.
  8. STEP 8. Measure the power supply voltage from the PCM at the TP sensor connector B-07 by backprobing. 
    1. Do not disconnect connector B-07.
    2. Turn the ignition switch to the "ON" position.
      Fig 13: Locating TP Sensor Connector B-07
      G04541818Courtesy of CHRYSLER CORP.
    3. Measure the voltage between terminal 4 and ground by backprobing.
      • The voltage should measure between 4.9 and 5.1 volts.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage between 4.9 and 5.1 volts? 

    YES  : Go to  Step 14.

    NO:  Go to Step 9.

    Fig 14: Measuring Voltage Between Terminal 4 And Ground
    G04541819Courtesy of CHRYSLER CORP.
  9. STEP 9. Measure the power supply voltage at PCM connector C-114 < 2.4L Engine > or C-115 < 3.0L Engine > by backprobing. 
    1. Do not disconnect connector C-114 < 2.4L Engine > or C-115 < 3.0L Engine >.
    2. Turn the ignition switch to the "ON" position.
      Fig 15: Locating PCM Connector C-114 Or C-115
      G04541820Courtesy of CHRYSLER CORP.
    3. Measure the voltage between terminal 46 and ground by backprobing.
      • The voltage should measure between 4.9 and 5.1 volts.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the measured voltage between 4.9 and 5.1 volts? 

    YES  : Go to Step 10.

    NO:  Go to  Step 12.

    Fig 16: Measuring Voltage Between Terminal 46 And Ground
    G04541821Courtesy of CHRYSLER CORP.
  10. STEP 10. Check TP sensor connector B-07 and PCM connector C-114 < 2.4L Engine > or C-115 < 3.0L Engine > for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 11.

    NO:  Repair or replace the defective components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 17: Locating TP Sensor Connector B-07
    G04541822Courtesy of CHRYSLER CORP.
    Fig 18: Locating PCM Connector C-114 Or C-115
    G04541823Courtesy of CHRYSLER CORP.
  11. STEP 11. Check the harness for open circuit or damage between TP sensor connector B-07 terminal 4 and PCM connector C-114 < 2.4L Engine > or C-115 < 3.0L Engine > terminal 46. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 5.

    NO:  Repair or replace the harness wire.

    Fig 19: Identifying TP Sensor Connector B-07
    G04541824Courtesy of CHRYSLER CORP.
    Fig 20: Identifying PCM Connector C-114 Or C-115
    G04541825Courtesy of CHRYSLER CORP.
  12. STEP 12. Check TP sensor connector B-07 and PCM connector C-114 < 2.4L Engine > or C-115 < 3.0L Engine > for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 13.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 21: Locating TP Sensor Connector B-07
    G04541826Courtesy of CHRYSLER CORP.
    Fig 22: Locating PCM Connector C-114 Or C-115
    G04541827Courtesy of CHRYSLER CORP.
  13. STEP 13. Check the harness for a short circuit to ground between TP sensor connector B-07 terminal 4 and PCM connector C-114 < 2.4L Engine > or C-115 < 3.0L Engine > terminal 46. 

    Q: Is the harness wire in good condition? 

    YES  : Go to  Step 5.

    NO:  Repair or replace the harness wire.

    Fig 23: Identifying TP Sensor Connector B-07
    G04541828Courtesy of CHRYSLER CORP.
    Fig 24: Identifying PCM Connector C-114 Or C-115
    G04541829Courtesy of CHRYSLER CORP.
  14. STEP 14. Check TP sensor connector B-07 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connector and terminals in good condition? 

    YES  : Go to Step 15.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 25: Locating TP Sensor Connector B-07
    G04541830Courtesy of CHRYSLER CORP.
  15. STEP 15. Check the TP sensor. 
    1. Disconnect connector B-07 and measure at the TP sensor side.
      Fig 26: Identifying Connector B-07
      G04541831Courtesy of CHRYSLER CORP.
    2. Measure the resistance between the TP sensor connector terminals 1 and 4.

      Specified resistance: 3.5 - 6.5 kΩ 

      Fig 27: Measuring Resistance Between TP Sensor Connector Terminals 1 And 4
      G04541832Courtesy of CHRYSLER CORP.
    3. Measure the resistance between the TP sensor connector terminals 1 and 3.
    4. Move the throttle valve from the idle position to the full-open position.
      • The resistance should change smoothly in proportion to the opening angle of the throttle valve.

    Q: Does the resistance change smoothly between 3.5 - 6.5 kΩ in proportion to the opening angle of the throttle valve? 

    YES  : Go to Step 16.

    NO:  Replace the TP sensor. Refer to < 2.4L Engine >, THROTTLE BODY ASSEMBLY or < 3.0L Engine >, THROTTLE BODY ASSEMBLY .

    Fig 28: Measuring Resistance Between TP Sensor Connector Terminals 1 And 3
    G04541833Courtesy of CHRYSLER CORP.
  16. STEP 16. Check PCM connectors C-114 < 2.4L Engine > or C-115 < 3.0L Engine > and C-117 < 2.4L Engine > or C-119 < 3.0L Engine > for loose, corroded or damaged terminals, or terminals pushed back in the connector. 

    Q: Are the connectors and terminals in good condition? 

    YES  : Go to Step 17.

    NO:  Repair or replace the damaged components. Refer to HARNESS CONNECTOR INSPECTION .

    Fig 29: Locating PCM Connectors C-114 Or C-115 And C-117 Or C-119
    G04541834Courtesy of CHRYSLER CORP.
  17. STEP 17. Check the harness for a short circuit to ground or damage between TP sensor connector B-07 terminal 3 and PCM connector C-117 < 2.4L Engine > or C-119 < 3.0L Engine > terminal 78. 

    Q: Is the harness wire in good condition? 

    YES  : Go to Step 18.

    NO:  Repair or replace the harness wire.

    Fig 30: Locating TP Sensor Connector B-07
    G04541835Courtesy of CHRYSLER CORP.
    Fig 31: Locating PCM Connector C-117 Or C-119
    G04541836Courtesy of CHRYSLER CORP.
  18. STEP 18. Check the TP sensor connector and harness for a short circuit to ground between the TP sensor and the auto-cruise control-ECU connector. 

    Q: Are the connector and harness wire in good condition? 

    YES  : Adjust the TP sensor. Refer to < 2.4L Engine >, ON-VEHICLE SERVICE - TP SENSOR ADJUSTMENT or < 3.0L Engine >, On-vehicle Service - TP SENSOR ADJUSTMENT .

    NO:  Repair or replace the damaged components.

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