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Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) 
    NOTE:

    Diagnose any Misfire DTCs before continuing.

    1. Turn the ignition on.
    2. With a scan tool, read the DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2.

      No 

      • Refer to STANDARD PROCEDURE and perform the INTERMITTENT CONDITION diagnostic procedure.
  2. CHECKING THE MDS SOLENOID CONTROL CIRCUIT BETWEEN THE C101 IN-LINE HARNESS CONNECTOR AN THE PCM 
    NOTE:

    The DTC must not be active for the actuator test to operate properly, clear all DTC before continuing.

    1. Turn the ignition off.
    2. Disconnect the C101 harness connector located behind the left side cylinder head.
    3. Using a 12-volt test light, jump from the Ground circuit to the (K451) MDS Solenoid No. 1 Control circuit in the C101 harness connector (PCM side).
    4. Turn the ignition on.
    5. Using the scan tool, actuate the MDS Solenoid No. 1.

      Does the 12-volt test light flash on and off?

      Yes 

      • Go To  3.

      No 

      • Go To  4.
  3. MDS SOLENOID RESISTANCE 
    1. Turn the ignition off.
    2. Measure the resistance between the Ground circuit and the (K451) MDS Solenoid No. 1 Control circuit in the C101 harness connector (MDS side).
      NOTE:

      It is important to follow the below temp/resistance values to ensure an accurate reading.

      MDS SOLENOID RESISTANCE
      TEMPERATURE VALUE RESISTANCE - MINIMUM RESISTANCE - MAXIMUM
      -18° C (0° F) 7.22 ? 8.12 ?
      0° C (32° F) 7.92 ? 8.82 ?
      20° C (68° F) 8.72 ? 9.62 ?
      38° C (100° F) 9.42 ? 10.32 ?
      66° C (150° F) 10.62 ? 11.52 ?
      93° C (200° F) 11.82 ? 12.72 ?
      121° C (250° F) 12.82 ? 13.72 ?
      149° C (300° F) 14.02 ? 14.92 ?

      Is the resistance within an acceptable range?

      Yes 

      • Go To  12.

      No 

      • Go To  8.
  4. GROUND CIRCUIT OPEN (PCM SIDE) 
    1. Turn the ignition off.
    2. Using a 12-volt test light connected to the 12 volts, probe the Ground circuit in the C101 harness connector (PCM side).

      Does the test light illuminate brightly?

      Yes 

      • Go To  5.

      No 

      • Repair the open in the Ground circuit.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
  5. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE (PCM SIDE) 
    1. Disconnect the PCM C2 harness connector.
    2. Turn the ignition on.
    3. Measure the voltage on the (K451) MDS Solenoid No. 1 Control circuit in the C101 harness connector (PCM side).

      Does the Voltmeter indicate voltage present?

      Yes 

      • Repair the short to battery voltage in the (K451) MDS Solenoid No. 1 Control circuit between the PCM C2 harness connector and C101 harness connector.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.

      No 

      • Go To  6.
  6. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT SHORTED TO GROUND (PCM SIDE) 
    1. Turn the ignition off.
    2. Measure the resistance between ground and the (K451) MDS Solenoid No. 1 Control circuit in the C101 harness connector (PCM side).

      Is the resistance below 100 Ohms?

      Yes 

      • Repair the short to ground in the (K451) MDS Solenoid No. 1 Control circuit between the PCM harness connector and the C101 harness connector.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.

      No 

      • Go To  7.
  7. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT OPEN (PCM SIDE) 
    1. Measure the resistance of the (K451) MDS Solenoid No. 1 Control circuit from the C101 harness connector to the PCM C2 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Repair the open in the (K451) MDS Solenoid No. 1 Control circuit between the C101 harness connector and the PCM C2 harness connector.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
  8. GROUND CIRCUIT OPEN (MDS SIDE) 
    1. Turn the ignition off.
    2. Gain access to the MDS Solenoid. Refer to SOLENOID, MULTIPLE DISPLACEMENT [ESG], REMOVAL .
    3. Disconnect the MDS harness connector.
    4. Measure the resistance of the Ground circuit between the C101 harness connector and the MDS 1 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  9.

      No 

      • Repair the open in the Ground circuit.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
  9. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE (MDS SIDE) 
    Fig 1: Checking MDS Solenoid Control Circuit For Short To Battery Voltage
    GC0141999Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition on.
    2. Measure the voltage on the (K451) MDS Solenoid No. 1 Control circuit in the MDS Solenoid No. 1 harness connector.

      Does the Voltmeter indicate voltage present?

      Yes 

      • Repair the short to battery voltage in the (K451) MDS Solenoid No. 1 Control circuit between the C101 harness connector and the MDS 1 harness connector.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.

      No 

      • Go To  10.
  10. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT SHORTED TO GROUND (MDS SIDE) 
    Fig 2: Checking MDS Solenoid Control Circuit For Short To Ground
    GC0142000Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance between ground and the (K451) MDS Solenoid No. 1 Control circuit in the MDS Solenoid 1 harness connector.

      Is the resistance below 100 Ohms?

      Yes 

      • Repair the short to ground in the (K451) MDS Solenoid No. 1 Control circuit between the C101 harness connector and the MDS harness connector.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.

      No 

      • Go To  11.
  11. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT OPEN (MDS SIDE) 
    1. Measure the resistance of the (K451) MDS Solenoid No. 1 Control circuit from the MDS Solenoid No. 1 harness connector to the C101 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Repair the open in the (K451) MDS Solenoid No. 1 Control circuit between the C101 harness connector and the MDS harness connector.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
  12. CHECKING HARNESS CONNECTOR C101 AND GROUND CONNECTION 
    1. Inspect the C101 harness connector.
    2. Make sure the ground terminal and control terminal are fastened securely into the connector and there are no signs of corrosion or damage.
    3. Check wiring to terminal connection. Look for an internal broken wire under the insulation.
    4. Inspect the Ground for a tight, clean connection.

      Were any problems found?

      Yes 

      • Repair as necessary.
      • Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.

      No 

      • Refer to STANDARD PROCEDURE and perform the INTERMITTENT CONDITION diagnostic procedure.
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