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
1. Start the engine and allow it to idle.
2. With the scan tool, read 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 THE EGR AIRFLOW THROTTLE CONTROL VALVE
1. Remove the boot from the EGR Throttle Control Valve. Using a mirror, look at the butterfly valve on the inside of the EGR Throttle Control Valve.
2. Start the vehicle, let idle for 10 seconds.
3. Turn ignition off.
  NOTE:
  If functioning properly the EGR Throttle Control Valve will close immediately after the engine is shut down.
  
  Did the EGR Throttle Control Valve close immediately after the engine was shut down?
  
  Yes
  - Go To 4.
  No
  - Go To 3.
CHECK THE EGR AIRFLOW CONTROL VALVE FOR BINDING OR STICKING
1. Turn the ignition off.
2. Check the butterfly valve for signs of a physical obstruction.
  Was there an obstruction found?
  
  Yes
  - Repair as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the EGR Airflow Control Valve in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK FOR HIGH RESISTANCE IN THE (K672) AIR INTAKE THROTTLE SENSOR SIGNAL CIRCUIT

Fig 1: Checking For Open Or High Resistance In Air Intake Throttle Sensor Signal Circuit
Courtesy of CHRYSLER LLC
1. Disconnect the EGR Airflow Control Valve harness connector.
2. Disconnect the PCM C1 harness connector.
3. Measure the resistance between ground and the (K672) Air Intake Throttle Sensor Signal circuit at the EGR Airflow Control Valve harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the (K672) Air Intake Throttle Sensor Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE EGR AIRFLOW CONTROL VALVE
1. Turn the ignition off.
2. Reconnect the PCM harness connector.
3. Reconnect the EGR Airflow Control Valve harness connector.
4. Ignition on, engine not running.
5. With the scan tool, erase DTCs.
6. While monitoring the scan tool, disconnect the EGR Airflow Control Valve harness connector.
7. With the scan tool, read DTCs.
  Is DTC P02E9 active?
  
  Yes
  - Replace the EGR Airflow Control Valve in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .