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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 599 (3.0L Diesel - DTCS P0001-00 To P0263-00 - 1500) >> Diagnosis And Testing >> P0133-00-O2 Sensor 1/1 Slow Response >> 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. DTC IS ACTIVE 
    NOTE:

    If DTCs P0131 or P0132 are present, perform the Diagnostics for those DTCs before continuing with this one.

    NOTE:

    If there are any cylinder misfire, Crank Sensor, MAF Sensor, or Fuel Injector DTCs stored with this fault, perform the Diagnostics for those DTCs before continuing with this one.

    1. Ignition on, engine not running.
    2. With the scan tool, erase DTCs in the PCM.
    3. 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.
    4. Monitor the scan tool for at least two minutes.
    5. 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 .
  2. 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
  3. CHECK THE INTAKE AIR SYSTEM 
    1. Perform the INTAKE AIR SYSTEM PRESSURE TEST diagnostic procedure. Refer to DIAGNOSIS AND TESTING .

      Were any Intake Air 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
  4. CHECK THE EXHAUST SYSTEM FOR LEAKS 
    1. Perform the CHECKING THE EXHAUST SYSTEM FOR LEAKS diagnostic procedure. Refer to DIAGNOSIS AND TESTING .

      Were any Exhaust System leaks found?

      Yes 

      • Perform the appropriate repairs to the Exhaust System.
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  5
  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 PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  6
  6. CHECK THE O2 SENSOR 
    NOTE:

    Excessive soot build up can be caused by over fueling. If excessive soot build up is present, the fuel system operation should be checked and the O2 sensor should be cleaned.

    1. Remove the O2 Sensor.
    2. Using pressurized shop air, blow out the soot deposits by applying the pressurized shop air directly into the center hole of the sensor.
    3. Reinstall the O2 Sensor.
    4. Turn the ignition on.
    5. With the scan tool, erase DTCs.
    6. Turn the ignition off for 75 seconds.
    7. 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.
    8. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  7

      No 

  7. OXYGEN SENSOR 
    1. Turn the ignition off.
    2. Replace the Oxygen Sensor in accordance with the service information.
    3. Turn the ignition on.
    4. With the scan tool, erase DTCs.
    5. Turn the ignition off for 75 seconds.
    6. 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.
    7. With the scan tool, read DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  8

      No 

  8. POWERTRAIN CONTROL MODULE 
    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the O2 Sensor and the PCM.
    2. Look for any chafed, pierced, pinched, or partially broken wires.
    3. Look for broken, bent, pushed out or corroded terminals.
    4. Perform any Technical Service Bulletins that may apply.

      Were any problems found?

      Yes 

      No 

      • Replace the Powertrain Control Module in accordance with the service information. Refer to REMOVAL .
      • Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
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