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
- Turn the ignition on.
- With the scan tool, record all Freeze frame data.
- With the scan tool, erase DTCs.
- Turn the ignition off for 75 seconds.
- Start the engine and let idle for one minute.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
- CHECK THE (K674) AIR INTAKE THROTTLE MOTOR (-) CIRCUIT FOR A SHORT TO GROUND
- Turn the ignition off.
- Disconnect the EGR Airflow Control Valve harness connector.
- Disconnect the PCM C1 harness connector.
- Measure the resistance between ground and the (K674) Air Intake Throttle Motor (-) circuit at the EGR Airflow Control Valve harness connector.
Is the resistance below 10k Ohms?
Yes
- Repair the (K674) Air Intake Throttle Motor (-) circuit for a short to ground.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
No
- Go To 3
- CHECK THE (K673) AIR INTAKE THROTTLE MOTOR (+) CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between ground and the (K673) Air Intake Throttle Motor (+) circuit at the EGR Airflow Control Valve harness connector.
Is the resistance below 10k Ohms?
Yes
- Repair the (K673) Air Intake Throttle Motor (+) circuit for a short to ground.
- Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
No
- Go To 4
- Measure the resistance between ground and the (K673) Air Intake Throttle Motor (+) circuit at the EGR Airflow Control Valve harness connector.
- EGR AIRFLOW CONTROL VALVE
- Replace the EGR Airflow Control Valve in accordance with the Service Information.
- Reconnect the EGR Airflow Control Valve harness connector.
- Reconnect the PCM C1 harness connector.
- Turn the ignition on.
- With the scan tool, erase DTCs.
- Start the engine and allow it to idle for one minute.
- With the scan tool, read DTCs.
Did the DTC return?
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 .