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Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC IS ACTIVE 
    NOTE:

    Diagnose and repair any system voltage DTCs before continuing with this test.

    NOTE:

    Diagnose and repair any Camshaft Position (CMP) Sensor or Crankshaft Position (CKP) Sensor DTCs before continuing with this test.

    NOTE:

    Diagnose and repair any oil pressure or oil pressure sensor DTCs before continuing with this test.

    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.

    2. With the scan tool, record and clear DTCs.
    3. Test drive the vehicle under the conditions in which the DTC is monitored, as outlined above.
    4. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2.

      No 

  2. VCT POSITION SOLENOID CLEARING 
    1. With the scan tool perform the Exhaust Phaser 1 Cleaning function

      Did the DTC reset?

      Yes 

      • Go To  3.

      No 

  3. VCT SOLENOID INSPECTION 
    1. Turn the ignition off.
    2. Remove the VCT Solenoid in accordance with the Service Information. Do not disconnect the harness connector.
    3. Perform a visual inspection of the open part of the VCT Solenoid (spool valve) for the presence of any debris (metallic or non-metallic).
      NOTE:

      If contamination is observed, the VCT Solenoid must be replaced. After replacing the valve, verify that the engine oil has been replaced with the appropriate oil in accordance with the Service Information.

      Were any problems found?

      Yes 

      • Replace the VCT Solenoid in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  4.
  4. VCT SOLENOID ACTUATION 
    1. Turn the ignition on.
    2. With the scan tool, actuate the VCT Solenoid.
    3. Perform a visual inspection of the spool valve for erratic movement or sticking during the forward and reverse stroke.
      NOTE:

      If sticking or erratic movement is observed, the VCT Solenoid must be replaced. After replacing the valve, verify that the engine oil has been replaced with the appropriate oil in accordance with the Service Information.

      Select the appropriate response from the choices below:

      Normal operation. No sticking or erratic movement is observed 

      • Go To  5.

      No movement is observed. 

      • Go To  7.

      Sticking or erratic movement is observed. 

      • Replace the VCT Solenoid in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  5. INCORRECT ENGINE OIL VISCOSITY 
    1. Review the vehicle service history to determine if the correct viscosity engine oil was used.

      Were any problems found?

      Yes 

      • Change the engine oil and filter in accordance with the Service Information and retest.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  6.
  6. ENGINE OIL DIRTY OR CONTAMINATED 
    1. Turn the ignition off.
    2. Inspect engine oil for signs of contamination, sludge or foreign material.

      Were any problems found?

      Yes 

      • Clean the engine of oil sludge. Once the engine is cleaned of excessive sludge, replace oil and oil filter in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .

      No 

      • Go To  11.
  7. VCT SOLENOID WIRING AND CONNECTORS 
    1. Turn the ignition off.
    2. Inspect the wiring and connectors between the VCT Solenoid and the Powertrain Control Module (PCM).
    3. Look for any chafed, pierced, pinched or partially broken wires.
    4. Look for broken, bent, pushed out or corroded terminals.

      Were any problems found?

      Yes 

      No 

      • Go To  8.
  8. (K442) VCT CONTROL CIRCUIT ACTUATION 
    1. With the scan tool, actuate the VCT Solenoid to the ON (maximum) position.
    2. Using a 12-volt test light connected to ground, check the (K442) VCT control circuit in the VCT Solenoid harness connector.
      NOTE:

      The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

      Is the test light illuminated and bright?

      Yes 

      • Go To  10.

      No 

      • Go To  9.
  9. (K442) VCT CONTROL CIRCUIT OPEN OR HIGH RESISTANCE 
    1. Turn the ignition off.
    2. Disconnect the Powertrain Control Module (PCM).
      NOTE:

      When checking circuits at the Powertrain Control Module (PCM), be careful not to damage or distort the connector terminals. Improper measurement technique could result in poor pin to terminal contact.

    3. Measure the resistance of the (K442) VCT Control circuit between the VCT Solenoid harness connector and the Powertrain Control Module (PCM) harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  12.

      No 

      • Repair the (K442) VCT Control circuit for an open circuit or high resistance.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  10. VCT SOLENOID 
    1. Turn the ignition off.
    2. Inspect the wiring and connectors between the VCT Solenoid and the Powertrain Control Module (PCM).
    3. Look for any chafed, pierced, pinched or partially broken wires.
    4. Look for broken, bent, pushed out or corroded terminals.

      Were any problems found?

      Yes 

      No 

      • Replace the VCT Solenoid in accordance with the Service Information.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  11. CAMSHAFT PHASER 
    1. Turn the ignition off.
    2. Remove Camshaft Phaser in accordance with the Service information.
    3. Inspect the Phaser for contamination, foreign material or any condition that would restrict operation of the Phaser.
    4. Inspect the Phaser oil passages for signs of sludge or foreign material.
      NOTE:

      The Phaser should not be disassembled. If the Phaser is damaged, it must be replaced.

      Were any problems found?

      Yes 

      No 

  12. POWERTRAIN CONTROL MODULE (PCM) 
    1. Turn the ignition off.
    2. Inspect the wiring and connectors between the VCT solenoid and the Powertrain Control Module (PCM).
    3. Look for any chafed, pierced, pinched or partially broken wires.
    4. Look for broken, bent, pushed out or corroded terminals.
    5. Refer to any TSBs that apply.

      Were any problems found?

      Yes 

      No 

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