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.

DTC ACTIVE
1. Turn the ignition on.
2. With the scan tool, record all Freeze frame data.
  NOTE:
  If DTC P02E2 or P02E3 are active, perform diagnosis and repair on those DTCs before continuing with this diagnostic tree.
3. With the scan tool, erase DTCs.
4. Turn the ignition off for 75 seconds.
5. Start the engine and let idle for one minute.
6. With the scan tool, read DTCs.
  Is DTC P02E1 active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
CHECK THE (K674) AIR INTAKE THROTTLE MOTOR (-) CIRCUIT FOR HIGH RESISTANCE
2. Turn the ignition off.
3. Disconnect the EGR Airflow Control Valve harness connector.
4. Disconnect the PCM C1 harness connector.
  NOTE:
  Check connectors - Clean/repair as necessary.
5. Measure the resistance of the (K674) Air Intake Throttle Motor (-) circuit between the EGR Airflow Control Valve harness connector and the PCM C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 3
  No
  - Repair the (K674) Air Intake Throttle Motor (-) circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE (K673) AIR INTAKE THROTTLE MOTOR (+) CIRCUIT FOR HIGH RESISTANCE
2. Measure the resistance of the (K673) Air Intake Throttle Motor (+) circuit between the EGR Airflow Control Valve harness connector and the PCM C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (K673) Air Intake Throttle Motor (+) circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
EGR AIRFLOW CONTROL VALVE
1. Turn the ignition off.
2. Reconnect the PCM C1 harness connector.
3. Ignition on, engine not running.
4. Using a voltmeter connected to ground, measure the voltage on the:
  - (K673) Air Intake Throttle Motor (+) circuit at the EGR Airflow Control Valve harness connector.
  - (K674) Air Intake Throttle Motor (-) circuit at the EGR Airflow Control Valve harness connector.
  NOTE:
  The voltage on the control circuits should read approximately battery voltage.
  
  Are both measurements equal to battery voltage?
  
  Yes
  - Replace the EGR Airflow Control Valve in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Replace the Powertrain Control Module in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .