Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
NOTE:
If there are Mass Airflow Sensor and Turbocharger DTCs present with this DTC, repair the 12-volt Supply circuit for an open or short to ground condition.
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 off for 75 seconds.
5. Start the engine and let idle.
6. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
CHECK THE (K672) AIR INTAKE THROTTLE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

Fig 1: Checking Air Intake Throttle Sensor Signal Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Ignition on.
2. Disconnect the EGR Airflow Control Valve harness connector.
3. Disconnect the PCM C1 harness connector.
4. 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
  - Repair the (K672) Air Intake Throttle Sensor Signal circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (K672) AIR INTAKE THROTTLE SENSOR SIGNAL CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Measure the resistance of the (K672) Air Intake Throttle Sensor Signal circuit between the EGR Airflow Control Valve harness connector and the PCM C1 harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (K672) Air Intake Throttle Sensor Signal circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
EGR AIRFLOW CONTROL VALVE
1. Replace the EGR Airflow Control Valve.
2. Reconnect the EGR Airflow Control Valve harness connector.
3. Reconnect the PCM C1 harness connector.
4. Turn the ignition on.
5. With the scan tool, erase DTCs.
6. Turn the ignition off for 75 seconds.
7. Start the engine and let idle.
8. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Replace Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Repair complete.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .