Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
NOTE:
If DTCs P220B, P229E, or P22A7 are present, perform the diagnostic for those DTCs before continuing with this test procedure.
1. Start the engine, monitor Exhaust Gas Temperature Sensor 4 until it reaches 150°C (302°F).
2. Drive the vehicle at 50 MPH, ensure that it is not in DPF Regeneration mode.
3. Perform a zero fueling event (decel condition for 10 seconds, with foot off of accelerator pedal).
4. Repeat this condition three to five times.
5. With the scan tool check active DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK FOR CYLINDER MISFIRE
1. Start the engine.
2. With the scan tool, navigate to Systems Tests, and perform the Injector Kill System Test.
  Were any cylinders found to be faulty or low?
  
  Yes
  - Perform the CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE TEST diagnostic procedure. Refer to Diagnosis and Testing , 6.7L .
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK FOR EXCESSIVE ENGINE OIL BEING INTRODUCED INTO THE AFTERTREATMENT SYSTEM
1. Turn the ignition off.
2. Remove the turbocharger outlet and inspect for signs of oil, fuel or moisture being introduced into the aftertreatment system from the engine.
  Was engine oil, fuel or moisture found in the turbocharger exhaust outlet?
  
  Yes
  - Locate the cause of possible diesel fuel or engine oil being carried from the engine into the exhaust system. Inspect the SCR Catalyst for possible damage.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4.
CHECK THE DECOMPOSITION TUBE FOR DIESEL EXHAUST FLUID DEPOSITS
1. Remove the DEF Injector. Refer to INJECTOR, Diesel Exhaust Fluid , Removal .
2. Visually inspect the Decomposition Tube for signs of diesel exhaust fluid crystals or deposits.
  Were any deposits found?
  
  Yes
  - Remove the crystallization build up.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 5.
CHECK THE DEF INJECTOR
1. Reconnect the DEF Injector harness connector.
2. Place the DEF Injector in a container to capture the fluid sprayed.
3. Turn the ignition on.
4. With the scan tool, navigate to Systems Tests and actuate the Diesel Exhaust Fluid Doser Pump Override Test.
  NOTE:
  This Test will run for six minutes before timing out. The amount of flow may fluctuate through out the test, therefore the test must be allowed to run completely in order for the results to be accurate. The fluid should spray out as a mist. There should be no dripping from the holes in the DEF Injector at any time during the duration of the test procedure.
5. Measure the amount of fluid sprayed after the test times out.
  Does the fluid sprayed measure between 85 ml and 115 ml?
  
  Yes
  - Replace the NOx Sensor 1/2 in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the DEF Injector in accordance with the service information. Refer to INJECTOR, Diesel Exhaust Fluid , Removal .
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .