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Home >> Dodge and Ram >> 2009 >> Durango Base, 4.7 P, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P2175 To P3441 >> P3402-Cylinder 1 Deactivation Control Performance >> Diagnostic Test

Diagnostic Test

  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 step  2

      No 

  2. CHECKING PCM CONTROL SIDE FOR THE MDS SOLENOID (C101) 
    Fig 1: Using 12-Volt Test Light To Jump From Ground Circuit And MDS Solenoid Control Circuit In Harness Connector (PCM Side)
    GC0106827Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the C101 harness connector.
    3. Using a 12-volt test light, jumper from the (Z935) Ground Circuit and the (K451) MDS Solenoid No. 1 Control Circuit in the C101 harness connector (PCM side).
    4. Turn the ignition on.
    5. With the scan tool, actuate the MDS Solenoid No. 1.
      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 12-volt test light illuminate accordingly?

      Yes 

      • Go to step  3

      No 

      • Go to step  4
  3. MDS SOLENOID RESISTANCE 
    Fig 2: Measuring Resistance Between Ground Circuit And MDS Solenoid Control Circuit In Harness Connector (MDS Side)
    GC0106828Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Measure the resistance between the (Z903) 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.

      Is the resistance within an acceptable range?

      Yes 

      • Go to step  7

      No 

    MDS SOLENOID RESISTANCE 
    TEMPERATURE VALUE ± -7°C (20°F)  RESISTANCE (OHMS) ±.25 Ohms 
    -18°C (0°F) 8.8 Ohms
    0°C (32°F) 9.5 Ohms
    20°C (68°F) 10.3 Ohms
    38°C (100°F) 11 Ohms
    66°C (150°F) 12.2 Ohms
    93°C (200°F) 13.4 Ohms
    121°C (250°F) 14.4 Ohms
    149°C (300°F) 15.6 Ohms
  4. (Z935) GROUND CIRCUIT OPEN (PCM SIDE) 
    Fig 3: Using 12-Volt Test Light Connected To 12-Volts To Probe Ground Circuit In Harness Connector (PCM Side)
    GC0106829Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Using a 12-volt test light connected to 12-volts, probe the (Z935) Ground circuit in the C101 harness connector (PCM side).

      Does the test light illuminate brightly?

      Yes 

      • Go to step  5

      No 

  5. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT SHORTED TO GROUND (PCM SIDE) 
    Fig 4: Measuring Resistance Between Ground And MDS Solenoid Control Circuit In Harness Connector
    GC0106830Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the C3 PCM harness connector.
    3. Measure the resistance between ground and the (K451) MDS Solenoid No. 1 Control circuit in the C101 harness connector.

      Is the resistance below 100 Ohms?

      Yes 

      No 

      • Go to step  6
  6. (K451) MDS SOLENOID NO. 1 CONTROL CIRCUIT OPEN (PCM SIDE) 
    Fig 5: Measuring Resistance Of MDS Solenoid Control Circuit From Harness Connector To Appropriate Terminal Of PCM Pinout Box 8815
    GC0106831Courtesy of CHRYSLER 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 PCM Pinout Box 8815 to perform diagnosis.
    1. Measure the resistance of the (K451) MDS Solenoid No. 1 Control circuit from the C101 harness connector to the appropriate terminal of PCM Pinout Box 8815.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

  7. MDS SOLENOID 1 
    Fig 6: View Of MDS Solenoids
    GC0094374Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Remove the Intake Manifold in accordance with the Service Information.
    3. Turn the ignition on.
      NOTE: The DTC needs to be cleared before actuating the Solenoid, if the DTC is not cleared, the Solenoid may not be allowed to actuate.
    4. With the scan tool actuate the MDS Solenoid 1.

      Can you feel and hear the Solenoid Actuating?

      Yes 

      • Go to step  8

      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 1. If the passages are not clogged with debris, replace the MDS Solenoid 1.
      • Perform the POWERTRAIN VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  8. OIL PASSAGES RESTRICTED 
    1. Turn the ignition off.
    2. Remove both Solenoids on Bank 1 of the engine block.
    3. Remove the Bank 1 Cylinder Head in accordance with the Service Information.
    4. Remove the Lifters from the left engine bank.
    5. Inspect the oil passages to the Solenoids and from the Solenoids to the lifters.

      Are the passages blocked?

      Yes 

      No 

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