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. Ignition on, engine not running.
2. Record freeze frame data and clear DTCs.
3. Turn the ignition off for 75 seconds.
4. Start the engine and let idle for at least two minutes.
5. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK THE (K365) FUEL CONTROL ACTUATOR DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 1: Fuel Control Actuator (FCA) Connector Pin ID
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the PCM C1 harness connector.
3. Disconnect the Fuel Control Actuator harness connector.
4. Measure the resistance between ground and the (K365) FCA Driver circuit at the FCA harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the (K365) FCA Driver circuit for a short to ground.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
CHECK FOR THE (K365) FCA DRIVER CIRCUIT SHORTED TO THE (K366) FCA RETURN CIRCUIT

Fig 2: Fuel Control Actuator (FCA) Connector Pin ID
Courtesy of CHRYSLER LLC
1. Measure the Resistance between the (K365) FCA Driver circuit and the (K366) FCA Return circuit at the Fuel Control Actuator harness connector.
  Is the resistance below 10k Ohms?
  
  Yes
  - Repair the short between the (K365) FCA Driver circuit and the (K366) FCA Return circuit.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4.
FUEL CONTROL ACTUATOR
1. Reconnect the PCM C1 harness connector.
2. Replace the Fuel Control Actuator in accordance with the service information.
3. Turn the ignition on and clear any DTCs.
4. Start the engine and allow it to idle for at least two minutes.
5. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - 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 .
  No
  - Repair complete.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .