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 there are any EGR Valve or EGR Airflow Control Valve DTCs present, repair those DTCs before proceeding.

NOTE:
If customer states that there was an EVIC message "Service Air Filter", or if Freeze Frame Data shows "Air Filter Plugged Error equals ON", replace the Air Filter before continuing.
1. Turn the ignition on.
2. With the scan tool, record all Freeze frame data.
3. With the scan tool, erase DTCs.
4. Turn the ignition on for 75 seconds.
5. Start the engine and let idle.
6. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK FOR AN INTAKE AIR SYSTEM LEAK
1. Perform the INTAKE AIR SYSTEM PRESSURE TEST. Refer to Diagnosis and Testing , 6.7L .
  Where any leaks found?
  
  Yes
  - Repair the leak and perform a Mobile Desoot of the aftertreatment system.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK THE EGR AIRFLOW THROTTLE CONTROL VALVE
1. Remove the boot from the EGR Airflow Throttle Control Valve.
2. Using a mirror, look at the butterfly valve on the inside of the EGR Airflow Throttle Control Valve.
3. Start the vehicle, let idle for 10 seconds.
4. Turn the ignition off.
  NOTE:
  If functioning properly the EGR Airflow Throttle Control Valve will cycle closed immediately after the engine is shut down.
  
  Did the EGR Airflow Throttle Control Valve cycle closed immediately after the engine was shut down?
  
  Yes
  - Go To 4.
  No
  - Replace the EGR Airflow Throttle Control Valve in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
BOOST PRESSURE SENSOR
1. Turn ignition switch on. Wait five seconds after ignition switch is turned on.
2. Using the scan tool, read DTCs
  Is P0106 stored?
  
  Yes
  - Go To 5.
  No
  - Replace the Boost Pressure Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
BOOST PRESSURE SENSOR
1. Erase the DTC with the scan tool.
2. Start the engine and let it idle for one minute.
3. With the scan tool, monitor the boost pressure reading.
  Does the Boost Pressure Sensor fluctuate slightly, indicating the sensor is not stuck?
  
  Yes
  - Repair complete.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the Boost Pressure Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .