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
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 let idle for up to five minutes.
6. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Go To 2.
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
CHECK THE O2 SENSOR 1/1 CIRCUITS FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the O2 Sensor Module harness connector.
3. Turn the ignition on.
4. Measure the voltage on the:
  - (K41) O2 Sensor 1/1 Signal circuit at the Smart O2 Sensor Module harness connector.
  - (K103) O2 Sensor 1/1 Pump Cell Current Trim circuit at the Smart O2 Sensor Module harness connector.
  - (K89) O2 Sensor 1/1 Positive Current Control circuit at the Smart O2 Sensor Module harness connector.
  - (K902) O2 Sensor 1/1 Return circuit at the Smart O2 Sensor Module harness connector.
  Is there voltage present on any circuit?
  
  Yes
  - Repair the short to voltage in the circuit where voltage was present.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Go To 3.
OXYGEN SENSOR SOOTED
1. Remove the O2 Sensor 1/1.
2. Carefully clean the soot from the O2 Sensor.
  NOTE:
  Do not tap or bang sensor to remove loose debris. This will damage the sensor.
3. Reinstall the O2 Sensor 1/1.
4. With the scan tool, erase DTCs.
5. Turn the ignition off for 75 seconds.
6. Start the engine and let idle for two minutes.
7. With the scan tool, read DTCs.
  Did the DTC reset?
  
  Yes
  - Go To 4.
  No
  - Repair complete.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
OXYGEN SENSOR AND O2 SENSOR CONTROL MODULE
1. Remove the O2 Sensor 1/1 and O2 Sensor 1/2.
2. Install the O2 Sensor 1/1 in the O2 Sensor 1/2 position.
3. Install the O2 Sensor 1/2 in the O2 Sensor 1/1 position.
4. With the scan tool, erase DTCs.
5. Turn the ignition off for 75 seconds.
6. Start the engine and let idle for two minutes.
7. With the scan tool, read DTCs.
  Did the DTC change to P0138?
  
  Yes
  - Reinstall the O2 Sensor 1/2 back to it's original position and replace the O2 Sensor 1/1.
  - Perform the POWERTRAIN VERIFICATION TEST TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
  No
  - Replace the O2 Sensor Control 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 .