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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 964 (6.4L - DTCS P0532 To P1573 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P1414-Cylinder 4 Reactivation Control Performance >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    NOTE:

    Diagnose any Misfire DTCs before continuing.

    1. Start the engine and allow it to reach normal 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 may result in possible serious or fatal injury.

      NOTE:

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

    2. With the scan tool, select View DTCs.

      Is the DTC Active at this time?

      Yes 

      • Go To  2

      No 

  2. CHECK THE (K452) MDS SOLENOID 4 CONTROL CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the PCM C2 harness connector.
    3. Disconnect the MDS In-line harness connector.
    4. Turn the ignition on.
    5. Measure the voltage on (K452) MDS Solenoid 4 Control circuit at the MDS in-line harness connector.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (K452) MDS Solenoid 4 Control circuit.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE MDS SOLENOID RESISTANCE 
    1. Turn the ignition off.
    2. Measure the resistance between the Ground circuit and the (K452) MDS Solenoid 4 Control circuit in the in-line 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 ohms 8.12 ohms
      0° C (32° F) 7.92 ohms 8.82 ohms
      20° C (68° F) 8.72 ohms 9.62 ohms
      38° C (100° F) 9.42 ohms 10.32 ohms
      66° C (150° F) 10.62 ohms 11.52 ohms
      93° C (200° F) 11.82 ohms 12.72 ohms
      121° C (250° F) 12.82 ohms 13.72 ohms
      149° C (300° F) 14.02 ohms 14.92 ohms

      Is the resistance within an acceptable range?

      Yes 

      • Go To  4

      No 

      • Visually and Physically inspect the wiring harness between the MDS In-line connector and the MDS Solenoid connector. Repair as necessary. If OK, replace the MDS Solenoid in accordance with the Service Information.
  4. PCM CONTROL 
    1. Turn the ignition off.
    2. Reconnect the PCM C2 harness connector.
    3. Ignition on, engine not running.
    4. Using a 12-volt test light connected to the (Z903) Ground circuit, probe the (K452) MDS Solenoid 4 Control circuit in the MDS In-line harness connector (PCM side).
    5. With the scan tool, actuate the MDS Solenoid.
      NOTE:

      The test light should be illuminated and bright proportional to the maximum duty cycle allowed by the scan tool. For example, if the scan tool allows 100% actuation, the brightness should be as bright as a direct connection to the battery. If the scan tool allows a maximum 25% actuation, the brightness should be 25% as bright as a direct connection to the battery.

      Does the test light illuminate accordingly during the actuation?

      Yes 

      • Go To  5

      No 

  5. MDS SOLENOID 4 
    Fig 1: View Of MDS Solenoids
    GC0094374Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Remove the Intake Manifold in accordance with the Service Information. Refer to MANIFOLD, INTAKE, REMOVAL .
    3. Reconnect the Solenoid harness connector.
    4. Turn the ignition on.
    5. With the scan tool actuate the MDS Solenoid 4.

      Can you feel and hear the Solenoid Actuating?

      Yes 

      • Go To  6

      No 

      • Remove the Solenoid and check for any debris that may be blocking the oil passages to the Solenoid. If the passages are clogged, clean the passages and replace the MDS Solenoid 4. If the passages are not clogged with debris, replace the MDS Solenoid 4. Refer to SOLENOID, MULTIPLE DISPLACEMENT, REMOVAL .
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  6. OIL PASSAGES RESTRICTED 
    1. Turn the ignition off.
    2. Remove both Solenoids on Bank 2 of the engine block. Refer to SOLENOID, MULTIPLE DISPLACEMENT, REMOVAL .
    3. Remove the Bank 2 Cylinder Head in accordance with the Service Information. Refer to CYLINDER HEAD, REMOVAL .
    4. Remove the Lifters from the right engine bank. Refer to LIFTER(S), HYDRAULIC, ROLLER, REMOVAL .
    5. Inspect the oil passages to the Solenoids and from the Solenoids to the lifters.

      Are the passages blocked?

      Yes 

      • Clean the oil passages as necessary. If the entire engine is restricted disassembly of the entire engine block may be necessary. Refer to DIAGNOSIS AND TESTING .
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

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