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.

OTHER DTCS
1. Ignition on, engine not running.
2. With the scan tool check for active DTCs.
  Are any of the P2202, P2209, P220A, U029D DTCs active?
  
  Yes
  - Repair the other active DTCs before continuing with this diagnostic procedure.
  No
  - Go To 2
CHECK FOR AN ACTIVE DTC
1. With the scan tool, read PCM DTCs and record on the repair order.
2. With the scan tool, record all Freeze frame Data.
3. With the scan tool, erase DTCs.
4. Using the recorded Freeze frame Data, along with the When Monitored and Set Conditions above, operate the vehicle under the conditions that set the DTC.
5. With the scan tool, read PCM DTCs.
  Did the DTC return?
  
  Yes
  - Go To 3
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK THE EXHAUST SYSTEM FOR LEAKS
2. Turn the ignition off.
3. Perform the CHECKING THE EXHAUST SYSTEM FOR LEAKS diagnostic procedure. Refer to CHECKING THE EXHAUST SYSTEM FOR LEAKS .
  Were any leaks or damage found?
  
  Yes
  - Perform the appropriate repair in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
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 CHECKING ENGINE MISFIRE / RUNS ROUGH / PERFORMANCE TEST .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 5
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. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 6
CHECK THE EGR AND INTAKE SYSTEMS FOR LEAKS
1. Visually inspect the entire EGR system for signs soot indicating a leak.
  NOTE:
  The EGR portion of the system can also be checked for leaks during the Intake Air System Pressure test.
  
  NOTE:
  When checking the EGR and Intake systems for leaks, start by looking around the Exhaust Manifold, EGR valve, EGR Cooler Bypass valve, and crossover tube.
2. Perform the INTAKE AIR SYSTEM PRESSURE TEST diagnostic procedure. Refer to INTAKE AIR SYSTEM PRESSURE TEST .
  Is there signs of an EGR or Intake Air system leak?
  
  Yes
  - Repair the EGR or Intake Air system leak in accordance with the Service Information.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Replace the NOx Sensor 1/1 in accordance with the Service Information. Refer to SENSOR, NOX, REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .