Diagnostic Test

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR OTHER DTCS
1. Turn the ignition on, engine not running.
2. With the scan tool, read DTCs.
  Are any other injector/fuel pressure related DTCs present?
  
  Yes
  - Diagnose and repair all other injector/fuel pressure related DTCs before performing this diagnostic tree.
  No
  - Go To 2
CHECK FOR AN ACTIVE DTC
1. With the scan tool, record all Freeze frame data.
2. With the scan tool, erase DTCs.
3. Turn the ignition off for 75 seconds.
4. Operate the engine until the coolant temperature is above 82.2°C (180°F).
5. With the scan tool, read DTCs.
  Did DTC P0093 return?
  
  Yes
  - Go To 3
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK FOR EXTERNAL FUEL LEAKS
1. Put on personal protective equipment.
2. Operate engine at idle when looking for fuel leaks.
3. Use the scan tool to operate engine at a variety of engine speeds.
  Any external leaks detected?
  
  Yes
  - Repair or replace component with external fuel leak.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 4
CHECK THE FUEL DELIVERY SYSTEM
1. Refer to CHECKING THE FUEL DELIVERY SYSTEM and perform the CHECKING THE FUEL DELIVERY SYSTEM diagnostic procedure.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  No
  - Go To 5
CHECK RELATED PCM AND COMPONENT CONNECTIONS
1. Perform any Service Bulletins that apply.
2. Disconnect all PCM harness connectors.
3. Disconnect all related in-line harness connections (if equipped).
4. Disconnect the related component harness connectors.
5. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Check for spread terminals and verify proper terminal tension.
  Repair any conditions that are found.
6. Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
9. With the scan tool, erase DTCs.
10. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
11. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, (PCM) 6.7L DIESEL [ETL, ETM, ETN], REMOVAL AND INSTALLATION .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - The wiring or poor connection problem has been repaired.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .