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Diagnostic Test

  1. DTC IS ACTIVE 
    NOTE:

    If this DTC sets intermittently, it is possible that the controller is overheating in extremely hot temperatures. This is considered a normal protection operation. No repair is necessary.

    NOTE:

    Low battery voltage can cause excessive current draw in very hot and cold ambient temperatures. Make sure the battery can pass a load test before continuing. Review Freeze Frame information to determine the ambient temperature when the DTC set.

    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 hand near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in possible serious or fatal injury.

      NOTE:

      Attempt to operate the vehicle under conditions similar to which the DTC was set.

      NOTE:

      It may be necessary to test drive the vehicle within the DTC monitoring conditions in order for this DTC to set.

    2. With a scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2.

      No 

  2. THROTTLE PLATE INSPECTION 
    1. Turn the ignition off.
    2. Remove the air cleaner assembly.
    3. Check for any signs of a foreign material (ice or dirt) on the throttle plate or in the throttle bore that can cause the throttle plate to stick.

      Were any problems found?

      Yes 

      • Remove the debris if possible or replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and perform the ETC RELEARN function.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  3.
  3. (K124) ETC MOTOR (+) CIRCUIT SHORTED TO VOLTAGE 
    Fig 1: Checking ETC Motor (+) Circuit For Short To Voltage
    GC0097646Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Throttle Body harness connector.
    3. Disconnect the C2 Powertrain Control Module (PCM) harness connector.
    4. Turn the ignition on.
    5. Using a 12-volt test light connected to ground, probe the (K124) ETC Motor (+) circuit in the Throttle Body harness connector.

      Does the test light illuminate brightly?

      Yes 

      • Repair the short to voltage in the (K124) ETC Motor (+) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  4.
  4. (K126) ETC MOTOR (-) CIRCUIT SHORTED TO VOLTAGE 
    Fig 2: Checking ETC Motor (-) Circuit For Short To Voltage
    GC0097647Courtesy of CHRYSLER GROUP, LLC
    1. Using a 12-volt test light connected to ground, probe the (K126) ETC Motor (-) circuit in the Throttle Body harness connector.

      Does the test light illuminate brightly?

      Yes 

      • Repair the short to voltage in the (K126) ETC Motor (-) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  5.
  5. (K124) ETC MOTOR (+) CIRCUIT SHORTED TO THE (K126) ETC MOTOR (-) CIRCUIT 
    Fig 3: Checking ETC Motor (+) Circuit For Short To ETC Motor (-) Circuit
    GC0097648Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance between the (K124) ETC Motor (+) circuit and the (K126) ETC Motor (-) circuit.

      Is the resistance below 100 ohms?

      Yes 

      • Repair the short to between the (K124) ETC Motor (+) circuit and the (K126) ETC Motor (-) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  6.
  6. (K124) ETC MOTOR (+) CIRCUIT SHORTED TO GROUND 
    Fig 4: Checking ETC Motor (+) Circuit For Short To Ground
    GC0097649Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (K124) ETC Motor (+) circuit.

      Is the resistance below 100 ohms?

      Yes 

      • Repair the short to ground in the (K124) ETC Motor (+) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  7.
  7. (K126) ETC MOTOR (-) CIRCUIT SHORTED TO GROUND 
    Fig 5: Checking ETC Motor (-) Circuit For Short To Ground
    GC0097650Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (K126) ETC Motor (-) circuit.

      Is the resistance below 100 ohms?

      Yes 

      • Repair the short to ground in the (K126) ETC Motor (-) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  8.
  8. (K126) ETC MOTOR (-) CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 6: Checking ETC Motor (-) Circuit For Open Or High Resistance
    GC0097651Courtesy of CHRYSLER GROUP, LLC
    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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.

    1. Measure the resistance of the (K126) ETC Motor (-) circuit between the Throttle Body connector and the appropriate terminal of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance below 5.0 ohms?

      Yes 

      • Go To  9.

      No 

      • Repair the excessive resistance in the (K126) ETC Motor (-) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  9. (K124) ETC MOTOR (+) CIRCUIT OPEN OR HIGH RESISTANCE 
    Fig 7: Checking ETC Motor (+) Circuit For Open Or High Resistance
    GC0097652Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (K124) ETC Motor (+) circuit between the Throttle Body connector and the appropriate terminal of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance below 5.0 ohms?

      Yes 

      • Go To  10.

      No 

      • Repair the excessive resistance in the (K124) ETC Motor (+) circuit.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  10. ETC MOTOR 
    Fig 8: Checking ETC Motor Resistance
    GC0097653Courtesy of CHRYSLER GROUP, LLC
    1. Reconnect the Throttle Body 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.

    2. Measure the resistance between the (K124) ETC Motor (+) circuit and the (K126) ETC Motor (-) circuit in the appropriate terminals of special tool (special tool #8815A, Kit, NGC, 38 Position).

      Is the resistance between 2.5 and 25 ohms at closed throttle?

      Yes 

      • Go To  11.

      No 

      • Replace the Throttle Body Assembly. Disconnect the Battery when replacing the Throttle Body Assembly. After installation is complete, use a scan tool and perform the ETC RELEARN function.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  11. 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. Refer to any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No 

      • Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
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