Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DTC
NOTE:
This fault can potentially be set by an aftermarket Air Filter Box and/or filter. Non factory filter assemblies are not calibrated to the factory PCM thresholds or settings. If the vehicle has a modified filter assembly and this fault is set, notify the customer that the vehicle needs to be returned back to the stock assembly in order to properly repair the vehicle.

NOTE:
If there are any cylinder misfire, Crank Sensor, MAF Sensor, Boost Pressure Sensor, or DPF Differential Pressure Sensor DTCs stored with this fault, perform the diagnostics for those DTCs before proceeding with this test.
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 drive the vehicle at 50 MPH. Perform a zero fueling event (decel condition for 10 seconds, with foot off of accelerator pedal). Repeat 3-5 times.
6. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION - 6.7L diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK THE (K733) O2 SENSOR 1/2 PUMP CELL CURRENT TRIM CIRCUIT FOR AN OPEN/HIGH RESISTANCE
1. Turn the ignition off.
2. Disconnect the O2 Sensor 1/2 harness connector.
3. Disconnect the Smart O2 Sensor Module harness connector.
4. Measure the resistance of the (K103) O2 Sensor 1/2 Pump Cell Current Trim circuit between the O2 Sensor 1/2 harness connector and the Smart O2 Sensor Module harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 3.
  No
  - Repair the (K733) O2 Sensor 1/2 Pump Cell Current Trim circuit for an open or high resistance.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
CHECK THE INTAKE AIR SYSTEM
1. Perform the INTAKE AIR SYSTEM PRESSURE TEST diagnostic procedure. Refer to Diagnosis and Testing , 6.7L .
  Were any Intake Air System problems found?
  
  Yes
  - Perform the appropriate repairs to the Intake Air System.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 4.
CHECK THE EXHAUST SYSTEM FOR LEAKS
1. Perform the CHECKING THE EXHAUST SYSTEM FOR LEAKS diagnostic procedure. Refer to Diagnosis and Testing , 6.7L .
  Were any Exhaust System leaks found?
  
  Yes
  - Perform the appropriate repairs to the Exhaust System.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 5.
CHECK FOR AN EGR LEAK
1. Look for visible signs (soot streaks) of an external EGR leak.
  Were any EGR leaks found?
  
  Yes
  - Perform the appropriate repairs to the EGR system.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 6.
O2 SENSOR MODULE
1. Turn the ignition off.
2. Remove the O2 Sensor 1/1 and O2 Sensor 1/2.
3. Install the O2 Sensor 1/1 in the O2 Sensor 1/2 position.
4. Install the O2 Sensor 1/2 in the O2 Sensor 1/1 position.
5. Turn the ignition on.
6. With the scan tool, erase DTCs.
7. Turn the ignition off for 75 seconds.
8. Start the engine and drive the vehicle at 50 MPH. Perform a zero fueling event (decel condition for 10 seconds, with foot off of accelerator pedal). Repeat 3-5 times.
9. With the scan tool, read DTCs.
  Did the DTC change to P2195?
  
  Yes
  - Reinstall the O2 Sensor 1/1 back to its original position and replace the O2 Sensor 1/2 in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the O2 Sensor Module in accordance with the service information. Return the O2 Sensors back to their original positions.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .