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Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    NOTE:

    Diagnose and repair any system voltage or sensor reference voltage DTCs before continuing with this test.

    NOTE:

    Diagnose and repair any Throttle Position Sensor Low or High DTCs before continuing.

    1. Turn the ignition on.
    2. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2

      No 

  2. CHECK THE (F855) 5-VOLT SUPPLY CIRCUIT VOLTAGE 
    Fig 1: Measuring Voltage Of 5 Volt Supply Circuit In Throttle Body Harness Connector
    GC0099768Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Throttle Body harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (F855) 5-Volt Supply circuit in the Throttle Body harness connector.

      Is the voltage between 4.8 and 5.2 volts?

      Yes 

      • Go To  3

      No 

      • Repair the (F855) 5-Volt Supply circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  3. CHECK THE (K22) TPS SIGNAL 1 CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 2: Measuring Voltage Of TP Signal Circuit In Throttle Body Harness Connector
    GC0099769Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the (K22) TPS Signal 1 circuit in the Throttle Body harness connector.

      Is the voltage above 5.2 volts?

      Yes 

      • Go To  10

      No 

      • Go To  4
  4. CHECK THE (K122) TPS SIGNAL 2 CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 3: Measuring Voltage Of TP Signal Circuit In Throttle Body Harness Connector
    GC0099817Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the (K122) TPS Signal 2 circuit in the Throttle Body harness connector.

      Is there any voltage present?

      Yes 

      • Go To  11

      No 

      • Go To  5
  5. CHECK THE (K922) TPS GROUND CIRCUIT 
    Fig 4: Using 12 Volt Test Light Connected To 12 Volts To Check TP Sensor Ground In Throttle Body Harness Connector
    GC0099770Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Using a 12-volt test light connected to 12 volts, check the (K922) TPS Ground circuit in the Throttle Body harness connector.
      NOTE:

      The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

      Is the test light illuminated and bright?

      Yes 

      • Go To  6

      No 

      • Repair the (K922) TPS Ground circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  6. CHECK FOR THE (K22) TPS SIGNAL 1 CIRCUIT SHORTED TO (K922) TPS GROUND CIRCUIT 
    Fig 5: Measuring Resistance Between TP Signal Circuit And TP Sensor Ground Circuit
    GC0099776Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the PCM C2 harness connector.
    2. Measure the resistance between the (K22) TPS Signal 1 circuit and the (K922) TPS Ground circuit in the Throttle Body harness connector.

      Is the resistance above 10k Ohms?

      Yes 

      • Go To  7

      No 

      • Repair the (K22) TPS Signal 1 circuit for a short to the (K922) TPS Ground circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  7. CHECK THE (K22) TPS SIGNAL 1 CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    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 the GPEC Diagnostic Adaptor to perform the diagnosis.

    1. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
    2. Measure the resistance of the (K22) TPS Signal 1 circuit between the Throttle Body harness connector and the GPEC Adaptor.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  8

      No 

      • Repair the (K22) TPS Signal 1 circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  8. CHECK THE (K122) TPS SIGNAL 2 CIRCUIT FOR AN OPEN/HIGH RESISTANCE 
    1. Measure the resistance of the (K122) TPS Signal 2 circuit between the Throttle Body harness connector and the GPEC Adaptor.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  9

      No 

      • Repair the (K122) TPS Signal 2 circuit for an open or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  9. THROTTLE BODY 
    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. Inspect the Throttle Body for any condition that would result in an incorrect signal, such as damage or contamination.

      Were any problems found?

      Yes 

      No 

  10. CHECK FOR THE (K22) TPS SIGNAL 1 CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY CIRCUIT 
    1. Disconnect the PCM C2 harness connector.
      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 the GPEC Diagnostic Adaptor to perform the diagnosis.

    2. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
    3. Measure the resistance between the (K22) TPS Signal 1 circuit and all other voltage supply circuits at the GPEC Adaptor.

      Is the resistance above 10k Ohms between the (K22) TPS Signal 1 circuit and all other voltage supply circuits?

      Yes 

      • Go To  12

      No 

      • Repair the (K22) TPS Signal 1 circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  11. CHECK FOR THE (K122) TPS SIGNAL 2 CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY CIRCUIT 
    1. Disconnect the PCM C2 harness connector.
      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 the GPEC Diagnostic Adaptor to perform the diagnosis.

    2. Connect the (special tool #10436, Adapter, GPEC Diagnostic).
    3. Measure the resistance between the (K122) TPS Signal 2 circuit and all other voltage supply circuits at the GPEC Adaptor.

      Is there any voltage present?

      Yes 

      • Go To  12

      No 

      • Repair the (K122) TPs Signal 2 circuit for a short to voltage.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST . .
  12. 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. Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No 

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