P200C - OBD Trouble Code

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Baffled? See the error code P200C flashing again? Here’s how you can diagnose and treat the error code P200C with Parts Avatar. In order to convert the remaining exhaust particles to harmless gases, the diesel exhaust fluid (DEF) is used. An increased temperature of the exhaust system is required. This optimum temperature in the diesel particulate filter is achieved by injecting the DEF fluid into the exhaust stream.

It should be noted that the system only then is able to alter the dangerous NOx to nitrogen, carbon dioxide and water. To limit any further NOx present in the exhaust stream, the reductant catalyst (SRC) is added. The code P200C is stored, when the DPF heats excessively.

What causes this problem with Diesel Particulate Filter Over Temperature Bank 1?

• A defective diesel particulate filter (DPF) temperature sensor
• The harness in the diesel particulate filter (DPF) temperature sensor is loose or short circuited
• A bad electrical connection in the diesel particulate filter (DPF) temperature sensor circuit
• A jammed DPF

1. Diesel exhaust fluid pump - A clogged or damaged diesel exhaust fluid pump is the chief host inviting a number of problems like a potential damage to components, including DEF dosing pump and diesel particulate filter. It is advised to get it changed immediately. Log into Parts Avatar now.
2. Diesel particulate filter - Love hitting the roads but hate the halts? Well, dirty or jammed diesel particulate filter not only triggers the error code P200C but also problems like a deactivation of the start/stop button. Now get your error code P200C fixed right here with us. What are you waiting for? Get your filter changed now.
3. Exhaust Gas Temperature Sensor - Failed emission tests? Engine pings? Check engine light illuminated? Well, all this is caused due to a faulty exhaust temperature sensor. Tune into Parts Avatar to get your error code P200C fixed just in the right time.
4. Powertrain control module - Because of a fault in the powertrain control module, downward emissions are likely to follow besides other issues like a sluggish engine crank, failure in the emission system etc. We advise you to get your faulty PCM changed now by simply logging into Parts Avatar.
5. Manifold absolute flow sensor - Having problems with the Mass absolute flow sensor? Don’t you worry, Parts Avatar has it all. A faulty MAF sensor could end up being the root cause behind the error code P200C. Also, it invites problems like a hesitation or slight jerking and rough idle. So get your changed just in time with Parts Avatar!

Have you ever wondered why is it so important to know the symptoms of the problem? Well, it is extremely essential to know the symptoms of the problem in order to detect it. Keeping this in mind, let’s throw some light on few common symptoms of OBD error code P200C

Common Symptoms

• Falling engine performance
• Black smoke emitting from vehicle exhaust
• Diminishing fuel efficiency
• Other codes related to emission

Wish to correct this error code with your vehicle? Do you know what all you should do to make your car free from this code? Well, don’t worry! We are here to guide you:

• Replace or repair a faulty diesel particulate filter (DPF) temperature sensor
• All the corroded or open harness in the diesel particulate filter (DPF) temperature sensor should be fixed
• Measures should be taken to fix a poor electrical connection in the diesel particulate filter (DPF) temperature sensor circuit
• A clogged DPF should be mended or restored

To do all this, you will need few high quality auto parts such as diesel exhaust fluid, diesel particulate filter, temperature sensor, PCM, MAF sensor, oil pressure sensor, air flow meter, dpf cleaner, particle filter, dpf filter and so on. From where will you get them? From your local store? Well, why go there when you can order quality parts with us while sitting in the comfort of your home. So, just browse through our website and order your needed parts today.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

Firstly, if you find any SRC codes stored in the system, we advise you to attend to these codes even before attempting to diagnose the error code P200C. Repair or restore all the pre-catalyst leakages too before starting to diagnose the P200C code. You will require a diagnostic scanner, a digital volt/ohmmeter (DVOM), an infrared thermometer with a laser pointer, and a source of vehicle specific diagnostic information to diagnose a code P200C. Then try to locate a technical service bulletin (TSB) that successfully matches the vehicle year, make/model as well as the engine size, code/s stored, and symptoms exhibited, as it could be really helpful diagnostic information. Start with a visual inspection of the SCR injection system, exhaust temperature sensors, NOx sensors, and oxygen (02) sensor harnesses and connectors. All the short circuited or damaged wiring and or connectors should be mended or restored before performing the next step. Plug in the scanner to the vehicle diagnostic connector to retrieve all stored codes and imperative freeze frame data. All the information extracted should be written down before clearing the codes and test driving the vehicle till the PCM either enters readiness mode or the code is reset. It should be noted that the code is an intermittent one and may be much more challenging to diagnose (at this time), if the PCM enters readiness mode.

Well, in such a case, the conditions that added to the code being stored may need to worsen before an accurate diagnosis can be made. Also, if the code resets, search the source of vehicle information to attain the diagnostic flow charts, connector pin out charts, connector face views, as well as component testing procedures and specifications. This information is essential to complete the next step of the diagnosis. The infrared thermometer should be used to collect the actual pre and post diesel particulate filter temperatures. The scanner data stream should then be observed to compare the actual findings with the information found on the scanner data display screen. Next, you need to compare the exhaust temperature sensor data between engine banks.

If in case, any discrepancies in the exhaust temperature are identified, examine the respective sensor/s using the DVOM. Also, the sensors that fail to match with manufacturer specifications, should be considered malfunctioning. If all sensors and circuitry appear to be functioning in the required order, suspect that the diesel particulate filter is defective or that the SCR system is malfunctioning. Ensure that the DEF reservoir is full with the correct fluid and the SCR system is functioning as per the requirements.

Common Mistakes When Diagnosing the P200C Code

Here we have listed a few common mistakes that should be avoided while diagnosing the error code P200C:

• A fault in the diesel particulate filter (DPF)
• Leakage in the intake air
• Loss of adjustment or contaminated mass air flow (MAF) sensor