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Home >> Chrysler >> 2009 >> 300 LX >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P2107 To P2302 >> P2135-Throttle Position Sensor 1/2 Correlation >> Diagnostic Test

Diagnostic Test

  1. DTC IS ACTIVE 
    NOTE: Diagnose and repair any Throttle Body circuit, system voltage, or sensor supply voltage DTCs before continuing with this test.
    1. Start the engine and allow it to reach operating temperature.
      WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.
    2. With the scan tool select View DTCs.
      NOTE: If the DTC does not reset it may be necessary to test drive the vehicle.

      Is the status Active for this DTC?

      Yes 

      • Go to step  2

      No 

  2. (F855) 5 VOLT SUPPLY CIRCUIT HIGH RESISTANCE 
    Fig 1: Performing Voltage Drop Test For 5 Volt Supply Circuit
    GC0097352Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
      CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 along with the #8815-1 to perform the diagnosis.
    2. Using a voltmeter, perform a voltage drop test by backprobing the (F855) 5 Volt Supply circuit at the Throttle Body harness connector and probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter.
      WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.
    3. Start the engine.

      Is the voltage below 0.5 volts?

      Yes 

      • Go to step  3

      No 

  3. (K22) TP SIGNAL 1 CIRCUIT HIGH RESISTANCE 
    Fig 2: Performing Voltage Drop Test For TP Signal 1 Circuit
    GC0097353Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
      CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 along with the #8815-1 to perform the diagnosis.
    2. Using a voltmeter, perform a voltage drop test by backprobing the (K22) TP Signal 1 circuit at the Throttle Body harness connector and probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter.
      WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.
    3. Start the engine.

      Is the voltage below 0.5 volts?

      Yes 

      • Go to step  4

      No 

  4. (K122) TP SIGNAL 2 CIRCUIT HIGH RESISTANCE 
    Fig 3: Performing Voltage Drop Test For TP Signal 2 Circuit
    GC0097354Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
      CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 along with the #8815-1 to perform the diagnosis.
    2. Using a voltmeter, perform a voltage drop test by backprobing the (K122) TP Signal 2 circuit at the Throttle Body harness connector and probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter.
      WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.
    3. Start the engine.

      Is the voltage below 0.5 volts?

      Yes 

      • Go to step  5

      No 

  5. (K922) TP SENSOR GROUND CIRCUIT HIGH RESISTANCE 
    Fig 4: Performing Voltage Drop Test For TP Sensor Ground Circuit
    GC0097355Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
      CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 along with the #8815-1 to perform the diagnosis.
    2. Using a voltmeter, perform a voltage drop test by backprobing the (K922) TP Sensor Ground circuit at the Throttle Body harness connector and probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter.
      WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.
    3. Start the engine.

      Is the voltage below 0.5 volts?

      Yes 

      • Go to step  6

      No 

  6. (K22) TP SIGNAL 1 CIRCUIT SHORTED TO THE (K122) TP SIGNAL 2 CIRCUIT 
    Fig 5: Measuring Resistance Between TP Signal 2 Circuit And TP Signal 1 In Throttle Body Harness Connector
    GC0097356Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Throttle Body connector.
    3. Disconnect the Powertrain Control Module (PCM) connector.
    4. Measure the resistance between the (K22) TP Signal 1 circuit and the (K122) TP Signal 2 in the Throttle Body harness connector.

      Is the resistance below 100 ohms?

      Yes 

      No 

      • Go to step  7
  7. THROTTLE BODY 
    1. Turn the ignition off.
    2. Connect the Powertrain Control Module (PCM) connector.
    3. Connect a jumper wire between the (K22) TP Signal 1 circuit and the (K922) TP Sensor Ground circuit in the Throttle Body harness connector.
    4. Turn the ignition on.
    5. With the scan tool, read the (K22) TP Signal 1 voltage.
      NOTE: The circuit voltage should change from approximately 5.0 volts (plus or minus.1 volt) with the connector disconnected to 0.0 volts (plus or minus.1 volt) with the jumper wire in place.
    6. Turn the ignition off.
    7. Connect a jumper wire between the (K122) TP Signal 2 circuit and the (F855) 5 Volt Supply circuit in the Throttle Body harness connector.
    8. Turn the ignition on.
    9. With a scan tool, read the (K122) TP Signal 2 voltage.
      NOTE: The circuit voltage should change from approximately 0.0 volts (plus or minus.1 volt) with the connector disconnected to 5.0 volts (plus or minus.1 volt) with the jumper wire in place.

      Does the scan tool display the voltage as described above?

      Yes 

      No 

      • Go to step  8
  8. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Throttle Body and the Powertrain Control Module (PCM).
    2. Look for any chafed, pierced, pinched, or partially broken wires.
    3. Look for broken, bent, pushed out or corroded terminals.
    4. Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
    5. Look for the data to change or for the DTC to reset during the wiggle test.
    6. Refer to any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No 

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