Guide To P2062 OBD Error Code Solutions

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This code stands for the Engine Control Module (ECM), or Powertrain Control Module (PCM), which cannot view the flow of electrical charge at the time it demands for the pump to come on.

Diesel Exhaust Fluid (DEF) is utilized to help in changing remaining exhaust matter to innocuous gases. The exhaust system temperature has to rise so that these particles are burning off. Injecting the DEF fluid into the exhaust flow hauls the Diesel Particulate Filter (DPF) at a desired temperature. Conclusively, the system manages to change innocuous NOx to Nitrogen, Carbon Dioxide and water. If Diesel Exhaust Fluid is failing to function correctly, this sets up code P2062.

What causes this problem with the Reductant Supply Control Circuit Open?

When the ECM wiring or reductant pump circuit has an open, this code will be set. An electrically open circuit occurs when electricity is unable to flow in past the wires that charge up the pump. This happens due to a breakage of wiring or a high resistance of the circuit to some extent.

1. Engine Control Module - The Engine Control Module (ECM) might fail if there is damage or corrosion to the interior wiring setting within the injector wiring harness or the sensor wiring harness, which can result in producing a short within the ECM, or corrosion can access the ECM and flow past the wiring harness. This can occur even when being in contact with a different assortment of elements surrounding the vehicle’s environment.
2. Powertrain Control Module - abnormal engine behavior might detect a bad or failing ECM. A failed computer might lead the vehicle to unpredictably stall or fail to release. The symptoms may come and go, but also not show any signs of pattern in their frequency or extremity. Problems with engine performance are another possibility that is related to the ECM. If the ECM is dealing with any problems, it may resist the timing and fuel positions of the engine, which can put a negative effect the vehicle’s performance. A failed ECM might lead the vehicle to deal with a decline in fuel efficiency, power, and acceleration. A bad ECM might lead a vehicle to not start or face challenges with starting. If the ECM fails entirely, this will leave the vehicle without engine power control, so it won’t start or run as an outcome. The engine might still crank, but without the serious inputs from the computer, it will fail to start completely.
3. Diesel Exhaust Fluid – When the vehicle runs out of Diesel Exhaust Fluid (DEF), the system permits it to run out of DEF and decreases the engine's power, so that a solid red warning will be shown and the vehicle speed will be restricted to 5 mph, that is until the DEF tank gets refilled.
   Since DEF is not available with any preservatives, it is available with a shelf life. In fact, DEF is quite a long shelf life, and it can normally be stored for up to a whole year without any problems.
4. Diesel Particulate Filter - The most evident and major sign you can see in a plugged DPF is a DPF warning light that will be displayed on your dashboard, warning you that it has to regenerate, so it clear itself out. There are other signs to take a look at when faced with a plugged DPF: You sense a power loss in your engine. The DPF light will show up on your dashboard. Regeneration keeps failing, whether passive or active. There is a strong aroma of diesel. Your car appears to be emitting too much quantity of smoke. The oil level is increasing. You’ve seen a rise in fuel consumption. If the case so happens that both passive and active regeneration is failing, another light might come on your dashboard, to make you aware of this situation and you might need to see a professional mechanic to do a cleaning on your DPF. We strongly advise that you clean your DPF rigorously, as effectively as possible, so removes all the soot and ash. Having a clean DPF, we make sure to use only the latest advanced technology to clean your DPF, so it will be functioning correctly again.
5. Reductant Pump - Errors in the DEF system that results in setting the code, might lead a vehicle to perform in a derate mode that restricts both engine power and speed. Prior to replacing any DEF system part for an associated code, make sure to read through the factory diagnostic steps, and pay close attention to the stability of wiring and connectors to prevent the need to replace the part. It is important when replacing the DEF pump to affirm that the diesel emission fluid has not been polluted with petroleum (diesel fuel). Polluted fluid will result in a very quick failure of the new pump assembly. In addition, it is also very crucial to clean the whole top surface of the DEF tank and area that surrounds the top surface of the pump, including the sending unit prior to having any parts removed. Dirt matter that accesses the DEF system will also result in an instant failure. Never use any petroleum products, such as grease or oil, to lubricate O-rings and seals inside the DEF system. It is highly considered to only use DEF for this particular errand. Prior to building the pump make sure to ultimate it by using the additional syringe that follows with the factory process.
6. Exhaust System - The major wrongdoing for exhaust damage or corrosion is rust, which can result in a slew of issues. It depends on the acuteness it can cause to a fulfilled exhaust failure or constructional damage. In uncommon situations, a new rusty exhaust pipe competing with older makes can get so worn or damaged by erosion that it will get loose and begin to drag on the road.
   If this occurs, you must bring your vehicle to the closest exhaust specialist or mechanic. If driving the vehicle is not safe, then you must call on roadside help and make sure to not breathe in the toxic emissions. If you can hear rattling sounds from beneath the vehicle it could signal that a component has become loosened, such as a bracket, heat shield or a fragment of exhaust pipe. It is essential to have your exhaust system tested if this situation occurs. Loose exhaust parts or absent brackets can place an addition of systematic pressure on the exhaust system and damage other costly parts. We store a vast collection of exhaust mounting kits to repair these kinds of damages.

It is very important to learn about the symptoms of a problem, so then you’ll easily be able to make a solution to the problem. So our team has arranged a list of a few essential symptoms of OBD Code P2062 as described below:

Common Symptoms

• Defective O2 Sensor
• Loss of power
• If not clearing the DPF, this will return the ECU to the Limp Home Mode until having corrected the situation.
• Faulty engine channeling 

These are a few methods that will assist you in managing to correct the OBD Code P2062: 

• Replace or adjust the system circuits/connectors as needed and re-examine the system to make sure that repairs have been accomplished. Utilizing the vehicle producer’s technical drawing of the wiring for the electronic pressure control solenoid, examine all associated circuits and the solenoid on its own for resistance and progression and make a comparison of your discoveries with vehicle producer’s identifications.
• This will assist to finding out whether the function crash is irregular or not. Once you have cleared the codes, have the vehicle test driven to affirm if the code is coming back.
• CAN is a short term for Controller Area Network. The CAN represents a communication bus that permits many microcontrollers to communicate with the others without requiring a host computer.
• If all system circuitry and sensors are identified and the transmission is functioning in sequence very well, surmise a failed PCM, but be mindful that PCM failure is uncommon and replacing the PCM will need to be reprogrammed.

Do not fret in contacting our team at Parts Avatar – Car Parts Online, as we are here to guide you! We have in store a high quality collection of ECM, PCM, Diesel Exhaust Fluid, Diesel Particulate Filter, Reductant Pump, Exhaust System and so much more for ourexcellent customers.

These are a few steps that you should read as a way to easily diagnose this error code:

• A mechanic has to start by engaging a scanner to the OBD II connector of the vehicle. The scanner has to be utilized to detect for all codes stored in the ECM. Any freeze frame data and any present data can help you indicate the error. To this extent, the mechanic will do a diagnosis or choose to conduct precise exams.
• Straight on inspecting of the surmised components has to be conducted. As a result, you will need to detect for power surge at the reductant supply pump and detect for a positively ground connection.
• If power and/or ground are not current, you will need to utilize a test light to detect the circuit at many points to find out in what location the failure has taken place.
• If power and ground are current, the pump is susceptible of being the issue and you will need to replace it.

Common Mistakes When Diagnosing the P2062 Code

A most frequent error is not detecting to make sure the test light has an effective ground when conducting matriculate exams. It is simple to miss this errand. The quality of electrical surge to turn a test light on is greatly less than what is usually required to run a pump. It is apparent for the need to store an exchange of power and ground to the pump that has a jumper wire. It is highly recurrent that an ECM will store sufficient voltage, but insufficient current to power on a pump.