Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DTC
1. Start the engine.
2. Allow the engine to reach normal operating temperature.
3. With the scan tool, read Powertrain Control Module 2 (PCM-2) DTCs and Freeze Frame Data and record on the repair order.
4. Using the recorded Freeze Frame Data and the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read DTCs and record on the repair order.
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK FOR AN INTAKE MANIFOLD LEAK AT CYLINDER 6
1. Check for any of the following conditions, but not limited to:
  - Intake manifold seals leaking cylinder 6.
  - Intake plenum leak at cylinder 6.
  - Warped/cracked Intake Manifold or plenum.
  - Vacuum leak at the Fuel Injector O-Ring.
  Were any issues found?
  
  Yes
  - Perform the appropriate repairs.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
CHECK FOR FUEL INJECTOR ISSUES AT CYLINDER 6
1. Check for any of the following conditions, but not limited to:
  - Verify correct voltage supply at the Fuel Injector.
  - Verify correct control circuit operation at the Fuel Injector.
  - Verify correct Fuel Injector operation (spray pattern).
  Were any issues found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK CYLINDER 6 FOR LOW COMPRESSION AND IGNITION SYSTEM ISSUES
1. Perform a cylinder compression and/or cylinder leak down test on cylinder 6.
2. Check the ignition system for any of the following conditions, but not limited to:
  - Verify correct voltage supply at the Ignition Coil.
  - Verify correct control circuit operation at the Ignition Coil.
  - Verify that the Spark Plug is equivalent to OEM specifications.
  - Verify correct Spark Plug gap.
  - Visually inspect the Ignition Coil and Spark Plug for signs of carbon tracking.
  - Visually inspect the Ignition Coil for signs of damage.
  Were any issues found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
CLEAN THE VALVE TRAIN AND COMBUSTION CHAMBERS
1. Using the Mopar Combustion cleaner, de-carbon the engine.
2. After driving and clearing the combustion cleaner from the engine, erase any DTCs with the scan tool.
3. Test drive the vehicle in accordance with the when monitored conditions.
4. With the scan tool, read DTCs.
  Is the DTC active or pending?
  
  Yes
  - Go To 6
  No
  - Repair is complete.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK FOR VALVETRAIN SYSTEM ISSUES
1. Check the valvetrain for any of the following conditions, but not limited to:
  - Check for broken, worn or improperly installed valve springs.
  - Check for broken, worn or improperly installed Camshaft followers.
  - Check for worn Camshaft lobes.
  Were any issues found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 7
O2 SENSOR
1. Replace the Bank 2 Upstream O2 Sensor.
2. With the scan tool, erase DTCs.
3. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
4. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Anything that can cause an air/fuel ratio imbalance in an individual cylinder will cause this DTC to set. Verify all of the items in this test and any other mechanical items that may cause this DTC to set. Also check for any Service Bulletins that may apply to this fault code.
  No
  - Repair is complete.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .