LEMON Manuals: Even more car manuals for everyone
Home >> Dodge and Ram >> 2015 >> Durango SXT, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 179 (5.7L - DTCS P2172 To U1440) >> DTC Troubleshooting >> P3450-Cylinder 7 Deactivation Control Performance >> Diagnostic Test

Diagnostic Test

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

    Diagnose any Misfire DTCs before continuing.

    1. Turn the ignition on.
    2. With the scan tool, read DTCs and record on the repair order.

      Is the DTC active or pending?

      Yes 

      • Go To  2

      No 

  2. CHECK THE MDS SOLENOID CIRCUITS FROM THE PCM SIDE OF THE IN-LINE HARNESS CONNECTOR 
    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 in-line harness connector located behind the left side cylinder head.
    3. Using a 12-volt test light, connect between the (Z904) Ground circuit and the (K454) MDS Solenoid 7 Control circuit in the in-line harness connector (PCM side).
    4. Turn the ignition on.
    5. With the scan tool, actuate the MDS Solenoid 7.

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

      Yes 

      • Go To  3

      No 

      • Go To  7
  3. MDS SOLENOID RESISTANCE 
    1. Turn the ignition off.
    2. Measure the resistance between the (Z904) Ground circuit and the (K454) MDS Solenoid 7 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 ? 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  10

      No 

      • Go To  4
  4. CHECK THE (Z904) GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE (MDS SIDE) 
    1. Turn the ignition off.
    2. Gain access to the MDS Solenoid 7. Refer to SOLENOID, MULTIPLE DISPLACEMENT, REMOVAL .
    3. Disconnect the MDS Solenoid 7 harness connector.
    4. Measure the resistance of the (Z904) Ground circuit between the in-line harness connector and the MDS Solenoid 7 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  5

      No 

      • Repair the (Z904) Ground circuit for an open or high resistance between the in-line harness connector and the MDS Solenoid 7 harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  5. CHECK THE (K454) MDS SOLENOID 7 CONTROL CIRCUIT FOR A SHORT TO GROUND (MDS SIDE) 
    1. Disconnect the in-line harness connector.
    2. Check for continuity between ground and the (K454) MDS Solenoid 7 Control circuit at the MDS Solenoid 7 harness connector.

      Is there continuity between ground and the (K454) MDS Solenoid 7 Control circuit?

      Yes 

      • Repair the (K454) MDS Solenoid 7 Control circuit for a short to ground between the in-line harness connector and the MDS Solenoid 7 harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK THE (K454) MDS SOLENOID 7 CONTROL CIRCUIT FOR AN OPEN/HIGH RESISTANCE (MDS SIDE) 
    1. Measure the resistance of the (K454) MDS Solenoid 7 Control circuit from the MDS Solenoid 7 harness connector to the in-line harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      No 

      • Repair the (K454) MDS Solenoid 7 Control circuit for an open or high resistance between the in-line harness connector and the MDS Solenoid 7 harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  7. CHECK THE (Z904) GROUND CIRCUIT FOR AN OPEN/HIGH RESISTANCE (PCM SIDE) 
    1. Turn the ignition off.
    2. Using a 12-volt test light connected to 12 volts, probe the (Z904) Ground circuit in the in-line harness connector (PCM side).

      Does the test light illuminate brightly?

      Yes 

      • Go To  7

      No 

      • Repair the (Z904) Ground circuit for an open or high resistance between ground and the in-line harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  8. CHECK THE (K454) MDS SOLENOID 7 CONTROL CIRCUIT FOR A SHORT TO GROUND (PCM SIDE) 
    1. Disconnect the in-line harness connector (PCM side).
    2. Disconnect the PCM C2 harness connector.
    3. Check for continuity between ground and the (K454) MDS Solenoid 7 Control circuit at the in-line harness connector (PCM side).

      Is there continuity between ground and the (K454) MDS Solenoid 7 Control circuit?

      Yes 

      • Repair the (K454) MDS Solenoid 7 Control circuit for a short to ground between the PCM C2 harness connector and the in-line harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  8
  9. CHECK THE (K454) MDS SOLENOID 7 CONTROL CIRCUIT FOR AN OPEN/HIGH RESISTANCE (PCM SIDE) 
    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 (K454) MDS Solenoid 7 Control circuit from the in-line harness connector to the GPEC Adaptor.

      Is the resistance below 3.0 Ohms?

      Yes 

      No 

      • Repair the (K454) MDS Solenoid 7 Control circuit for an open or high resistance between the in-line harness connector and the PCM C2 harness connector.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  10. MDS SOLENOID 7 
    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 SOLENOID, MULTIPLE DISPLACEMENT, REMOVAL .
    3. Reconnect the PCM C2 harness connector.
    4. Turn the ignition on.
    5. With the scan tool actuate the MDS Solenoid 7.

      Can you feel and hear the Solenoid Actuating?

      Yes 

      • Go To  11

      No 

      • Remove the Solenoid (1) and check for any debris that may be blocking the oil passages (3) to the Solenoid. If the passages are clogged, clean the passages and replace the MDS Solenoid. If the passages are not clogged with debris, replace the MDS Solenoid 7.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  11. 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. Refer to CYLINDER HEAD, REMOVAL .
    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 

      • Clean the oil passages as necessary. If the entire engine is restricted disassembly of the entire engine block may be necessary.

      No 

      • Replace both sets of lifters if no other possible causes remain.
scientia non olet · About LEMON Manuals