LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 603 (3.0L Diesel - DTCS P2455-00 To U1489-00 - 1500) >> Diagnosis And Testing >> P2A00-00-O2 Sensor 1/1 Circuit Performance >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECKING FOR INTAKE SYSTEM LEAK OR RESTRICTION 
    NOTE:

    This DTC will set due to poor engine performance as well as a faulty O2 Sensor. If the vehicle exhibits any fuel system or driveability issues, or has any other driveability DTCs present, repair those concerns before proceeding with this test.

    1. Turn the ignition off.
    2. Perform a thorough inspection of the intake system. Look for any leaks or restrictions. Pay special attention to the Charge Air Cooler and hoses.
    3. Remove the Mass Air Flow Sensor from the inlet tube.
    4. Seal off and/or plug the where the MAF sensor was removed.
    5. Connect the smoke machine 84-04 to the intake system where possible and begin injecting smoke into the system.
    6. Observe all intake system components for evidence of smoke leakage.

      Were any leaks or restrictions found?

      Yes 

      • Repair the leak or restriction in the intake system.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  2
  2. EXHAUST SYSTEM LEAK OR RESTRICTION 
    1. Perform a thorough inspection of the exhaust system. Look for any leaks or restrictions.

      Were any leaks or restrictions found?

      Yes 

      • Repair the leak or restriction in the exhaust system.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  3
  3. POOR EGR SYSTEM PERFORMANCE 
    1. Perform a thorough inspection of the EGR system. Look for signs of a leak or restriction.

      Is the EGR system operating properly?

      Yes 

      • Go To  4

      No 

  4. POOR FUEL SYSTEM PERFORMANCE 
    1. Perform the CHECKING THE FUEL DELIVERY SYSTEM diagnostic procedure. Refer to DIAGNOSIS AND TESTING .

      Is the fuel system operation normal?

      Yes 

      • Go To  5

      No 

  5. OXYGEN SENSOR 
    1. Replace the Oxygen Sensor in accordance with the service information.
    2. Reconnect the PCM C1 harness connector.
    3. Reconnect the O2 Sensor harness connector.
    4. Start the engine.
    5. Allow the engine to reach normal operating temperature. It may be necessary to test drive the vehicle to confirm repair.
    6. Monitor the scan tool for at least two minutes.
    7. With the scan tool, select View DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  6

      No 

  6. POWERTRAIN CONTROL MODULE (PCM) 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors the Oxygen Sensor and the Powertrain Control Module (PCM).
      • Look for any chafed, pierced, pinched, or partially broken wires.
      • Look for broken, bent, pushed out or corroded terminals.
      • Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
      • Look for the data to change or for the DTC to reset during the wiggle test.
      • Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No 

      • Replace the Powertrain Control Module (PCM) in accordance with the service information. Refer to REMOVAL .
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
scientia non olet · About LEMON Manuals