Diagnostic Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Start the engine.
2. Allow the engine to reach normal operating temperature.
3. Test drive the vehicle in accordance with the when monitored conditions.
4. 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 A SPECIFIC CYLINDER ON BANK 2
1. Check for the following conditions:
  - Intake manifold seals leaking at a specific cylinder.
  - Intake plenum leak at a specific cylinder.
  - Warped/cracked Intake Manifold or plenum.
  - Vacuum leak at a Fuel Injector O-Rings.
  Were any issues found?
  
  Yes
  - Repair the vacuum leak(s) as necessary in accordance with the Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
CHECK FOR FUEL INJECTOR ISSUES AT A SPECIFIC CYLINDER ON BANK 2
1. Check for the following conditions:
  - Correct Fuel Injector voltage supply.
  - Correct Fuel Injector control circuit operation.
  - Correct Fuel Injector operation (spray pattern).
  Were any issues found?
  
  Yes
  - Repair Injector circuits or injector spray pattern issue as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK THE CYLINDERS ON BANK 2 FOR LOW COMPRESSION AND IGNITION SYSTEM ISSUES
1. Perform a cylinder compression and/or cylinder leak down test on each cylinder on bank 2.
2. Check the ignition system for the following conditions:
  - Correct voltage supply at each Ignition Coil.
  - Correct control circuit operation at each Ignition Coil.
  - Spark Plugs are matching and are equivalent to OEM specifications.
  - Correct Spark Plug gap.
  - Ignition Coils and Spark Plugs for signs of carbon tracking.
  - Ignition Coils for signs of damage.
  Were any problems found?
  
  Yes
  - Repair the Ignition system primary or secondary circuits or components as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
CLEAN THE CARBON FROM THE COMBUSTION CHAMBERS AND CHECK DTCS
1. Using the Mopar Combustion cleaner, de-carbon the engine.
2. After driving and clearing the combustion cleaner from the engine, erase DTCs with the scan tool.
3. Test drive the vehicle in accordance with the When Monitored conditions.
4. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 6
  No
  - Decarbonizing the combustion chambers repaired the condition.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK FOR VALVETRAIN AND MULTIPLE DISPLACEMENT SYSTEM (MDS) ISSUES
1. Check the valve train for the following conditions:
  - Correct operation of the MDS Control Valve Solenoids.
  - Correct operation of the Deactivating Roller Lifters.
  - Broken, worn or improperly installed valve springs.
  - Improperly installed Deactivating Roller Lifters.
  - Worn Camshaft lobes.
  - Broken, worn or damaged MDS control valve solenoid wiring.
  Were any issues found?
  
  Yes
  - Repair the MDS or Valvetrain components as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Refer to 7.
CHECK FOR INFORMATION RELATED TO THIS DTC
1. Check for related Service Bulletins and any other official OEM documentation related to this DTC.
  Were any related Service Bulletins or official OEM documentation related to this DTC available?
  
  Yes
  - Repair the condition by performing the related procedures outlined in the Service Bulletin or official OEM documentation.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - 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 could cause this DTC to set.