Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE
NOTE:
If there are any other O2 Sensor DTCs present, perform the Diagnostics for those DTCs before proceeding with this one.

NOTE:
If there are any cylinder misfire, Crank Sensor, MAF Sensor, EGR, Fuel Pressure or Fuel Injector DTCs present, perform the Diagnostics for those DTCs before proceeding with this one.
1. Ignition on, engine not running.
2. With the scan tool, Clear DTCs in the Powertrain Control Module.
3. Start the engine.
4. Allow the engine to reach normal operating temperature.
5. Monitor the scan tool for at least five minutes.
6. With the scan tool, select View DTCs.
  Is the status Active for this DTC?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
CHECK THE FUEL DELIVERY SYSTEM
1. Perform the CHECKING THE FUEL DELIVERY SYSTEM diagnostic procedure. Refer to DIAGNOSIS AND TESTING .
  Were any fuel system problems found?
  
  Yes
  - Perform the appropriate repairs to the fuel system.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go To 3
CHECK THE INTAKE AIR SYSTEM
1. Check the Intake Air System for any signs of a leak or restriction.
  Were any fuel system problems found?
  
  Yes
  - Perform the appropriate repairs to the Intake Air System.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go To 4
CHECK THE EXHAUST SYSTEM FOR LEAKS
1. Check the Exhaust System for any signs of a leak or restriction.
  Were any Exhaust System problems found?
  
  Yes
  - Perform the appropriate repairs to the Exhaust System.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go To 5
CHECK THE EGR SYSTEM
1. Look for visible signs (soot streaks) of an external EGR leak.
2. Using the scan tool, perform the EGR Actuation/Testing procedure.
  Were any problems found with the EGR system?
  
  Yes
  - Perform the appropriate repairs to the EGR system.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Go To 6
OXYGEN SENSOR
1. Turn the ignition off.
2. Replace the Oxygen Sensor in accordance with the Service Information. Refer to SENSOR, OXYGEN, REMOVAL .
3. Turn the ignition on.
4. With the scan tool, navigate to Actuator Tests and perform the O2 Sensor Replaced procedure.
5. Start the engine.
6. Allow the engine to reach normal operating temperature.
7. Monitor the scan tool for at least five minutes.
8. With the scan tool, select View DTCs.
  Is the status Active for this DTC?
  
  Yes
  - Go To 7
  No
  - Test Complete.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
POWERTRAIN CONTROL MODULE
1. Disconnect all PCM harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. 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.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Using the recorded Freeze Frame and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read PCM DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Test complete.
  - Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .