Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
NOTE:
If Fuel Injector related DTCs are present, perform those diagnostics before proceeding.

NOTE:
If Accelerator Pedal Position Sensor related DTCs are present, perform those diagnostics before proceeding.

NOTE:
If Fuel Rail Pressure Sensor related DTCs are present, perform those diagnostics before proceeding.

NOTE:
If Vehicle Speed Sensor related DTCs are present, perform those diagnostics before proceeding.
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 run for 5 minutes.
6. With the scan tool, read DTCs.
  Did DTC P054E reset?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK THE INJECTORS AND FUEL INJECTOR SUPPLY
1. With the scan tool, perform the Injector Kill System test to identify the suspect injector.
2. Remove the fuel injector supply line for the suspect injector.
3. Inspect both ends of the fuel injector supply line for damage.
4. Using shop air pressure, blow out the fuel injector supply line to verify that they are not obstructed.
  Are the fuel lines free of debris or damage?
  
  Yes
  - Go To 3
  No
  - Replace the damaged or obstructed fuel injector supply line.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK FOR DAMAGED OR OBSTRUCTED HIGH PRESSURE CONNECTOR
1. Remove the high pressure connector for the suspect injector.
2. Inspect both ends of the high pressure connector for signs of damage.
3. Using shop air pressure, blow out the high pressure connector to verify that it is not obstructed.
  Are the high pressure connectors free of debris or damage?
  
  Yes
  - Go To 4
  No
  - Replace the damaged or obstructed high pressure connector.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE FUEL INJECTOR AND VALVE COVER HARNESS TERMINALS
1. Turn the ignition off.
2. Visually check the valve cover connectors, wiring, and fuel injector terminals for loose connections or damaged threads.
  Are the connections, wiring, and terminals good?
  
  Yes
  - Replace the internal damaged fuel injector and high pressure connector in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Repair the connections as necessary.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .