P2063 - OBD Trouble Code

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The PCM has found a function crash inside the reductant injector air pump control circuit. The reductant injector is utilized to decrease noxious gases that are released by way of the diesel particulate filter, also called diesel engines, or the catalytic converter, also called gasoline fueled engines, including for the turbocharged.

The reductant injector air pump control system uses sensors inside the exhaust system to input voltage recordings directly to the PCM. The PCM usually acknowledges to these voltage recordings as exhaust gas temperature or pressure, which relies on the vehicle producer and model. Differences in system voltage that surpass the vehicle producer’s decidedly advanced restrictions will result in storing a code and will probably illuminate a service engine soon lamp. A few models need many drive cycles as a way to illuminate a service engine soon lamp.

What causes this problem with the Reductant/Regeneration Supply Control Circuit Low?

• Error Reductant Injector Air Pump
• Open or shorted Reductant Injector Air Pump harness
• Bad electrical connection in Reductant Injector Air Pump circuit
• Defective Powertrain Control Module (PCM)

1. Engine Control Module - The Engine Control Module (ECM) could fail if there is damage or corrosion that spreads to the interior wiring setting inside the injector wiring harness or the sensor wiring harness, which can lead to creating a short within the ECM, or corrosion can enter the ECM and stream through the wiring harness. This can happen even when being exposed with a diversity of elements surrounding the vehicle’s environment.
2. Powertrain Control Module - Irregular engine behavior may identify a bad or failing ECM. A failed computer may result in the vehicle unexpectedly stalling or failing to start. The symptoms might come and go, but also won’t show any indications of pattern in their frequency or severity. Issues with engine performance are also possibly related to the ECM. If the ECM is faced with any issues, it might resist the timing and fuel settings of the engine, which can badly affect the vehicle’s performance. A faltered ECM may result in the vehicle dealing with a reduction in fuel efficiency, power, and acceleration. A negative ECM may result in a vehicle failing to start or struggling to start again. If the ECM is failing completely, this leaves the vehicle deprived of engine power control, so it will fail to start or run as a result. The engine might still be cranking, but without the crucial inputs by the computer, it will fail to start entirely.
3. Diesel Exhaust Fluid - As the vehicle runs dry of Diesel Exhaust Fluid (DEF), the system actually allows it to run dry of DEF and reduces the engine's electrical surge, so then a solid red warning will be displayed and the vehicle acceleration will be limited to 5 mph, until this refills the DEF tank. Since DEF doesn’t come with any preservatives, it does come with a shelf life. As a matter of speaking, DEF has a lengthy shelf life, and it can usually be stored for about to a year without any signs of problems.
4. Diesel Particulate Filter - The most apparent and utmost sign you will notice in a clogged DPF is a DPF warning light that will be shown on your dashboard, making you aware that it needs to regenerate, so that it will clear out independently. You will notice other signs when faced with a clogged DPF: You can see a loss of power in your engine. The DPF light will be displayed on your dashboard. The DPF regenerating will keep failing, whether it is passive or active. There is a powerful smell of diesel. Your car appears to be releasing an excessive amount of smoke. The oil level is rising. You’ve seen an increase in consuming fuel. In other scenarios that both passive and active regeneration is failing, another light might illuminate your dashboard, to alert you of this situation and you will need to call on a professional mechanic to clean up your DPF. We highly recommend that you clean your DPF thoroughly and very effectively, so that it removes all traces of soot and ash. Sustaining a clean DPF, we ensure to use only the most modern advanced technology in cleaning your DPF, so it will be performing effectively as ever before.
5. Reductant Pump - Mistakes in the DEF system that leads to a code being set, may result in a vehicle to perform in a derate mode that limits both engine power and acceleration. Before replacing any DEF system component for a related code, ensure to follow through the factory diagnostic steps, and be fully aware of the security of wiring and connectors to stop having to replace the component. It is essential when replacing the DEF pump to guarantee the diesel emission fluid has not been contaminated with petroleum or diesel fuel. Contaminated fluid will lead to a very rapid failure of the new pump assembly. Additionally, it is also highly critical to clean the top surface of the DEF tank and area that revolves around the top surface of the pump, which includes the sending unit before removing any components. Dirt particles that enter the DEF system will also lead to an immediate failure. Don’t ever use any petroleum products, mostly grease or oil, to lubricate O-rings and seals inside the DEF system. It is highly recommended to only use DEF for this specific operation. Before installing the pump make sure to vitalize it by using the included syringe that addresses with the factory specifications.
6. Exhaust System - The utmost misconduct for exhaust damage or corrosion is rust that can lead to a slew of problems. It depends on the severity it can lead a complete exhaust failure or systematic damage. In rare cases, a new rusty exhaust pipe versus older makes can get worn or damaged by erosion, so it will loosen and start dragging on the road. If this happens, you must bring your vehicle to the nearest exhaust mechanic or specialist. If driving the vehicle is hazardous, then you must call for roadside help and make sure to not inhale the toxic fumes. If your able to hear rattling noises coming from underneath the vehicle it could indicate that a component has become loose, such as a bracket, heat shield or a piece of exhaust pipe. It is important to have your exhaust system inspected if this situation keeps on occurring. Loose exhaust parts or absent brackets can put more systematic stress on the exhaust system and damage other expensive components. We stock a wide range of exhaust mounting kits to repair any of these damages.
7. Reductant Injector Air Pump - A clogged or blocked pump impeller can lead to a decreased pump performance. Prior to replacing the pump, clean out any sediment that may affect the impeller operation by using stressed air and a light substance. A non-metallic and stiff-bristle brush can assist in removing stuck on build-ups. If any problems are diagnosed in other parts of the secondary air injection system, repair or replace the affected parts, and re-examine the air injection pump for a proper operation before checking out a defect in the pump.
8. Exhaust Gas Temperature Sensor - A bad or failing EGR temperature sensor may be faced with a crucial symptom such as an engine ping or knock. If the EGR temperature sensor doesn’t succeed in performing, this will cause the EGR system to flow. This can lead to cylinder temperatures to increase, which can result in engine ping or knock. Engine ping or knock will make noises such as metallic rattling sounds that is coming out of the engine bay, and is signaling an issue with the combustion procedure. Any issue that results in an engine ping or knock needs discreet attention by an experienced mechanic, as engine knock can lead to crucial engine damage if left undetected.

It is important to learn about the symptoms of a problem, so you will easily be able to resolve the problem. This is why we have written down a few critical symptoms of OBD Code P2063 as described below:

Common Symptoms

• Symptoms of a P2063 trouble code might come as the following:
• Decrease in fuel efficiency
• Vehicle exhaust emits too much black smoke
• Declined engine performance
• Any other SCR associated codes
• Carbon accumulation on O2 Sensor
• Illuminated Malfunction Indicator Lamp (MIL)
• Delay in speeding up
• When not clearing DPF, this will return the ECU to the Limp Home Mode until correcting the setting. 

Are you eager to correct the Error Code P2063? Follow through these steps that are described below:

• Constantly re-examine the system to make sure the repair is successful. Making sure that all system circuits are complete and engaged the scanner attached to the diagnostic connector, try to use your hands to initiate the electronic pressure control solenoid.
• This method will assist you to find out whether the function crash is irregular or not. Once you’ve cleared out the codes, make sure the vehicle is test-driven to affirm if the code is returning.
• The signal is methodically sent forward to influence control modules that use the information to achieve a different range of other jobs.
• To ensure all system circuitry and sensors are inspected and the transmission is in an effecting performing condition, surmise a defective PCM, but be mindful that a PCM defect is uncommon and replacing PCM will need to be reprogrammed.

Our team at Parts Avatar Canada is available directly on your computer to help you make a solution to all of your problems associated to car components. We have stored a vast extension of our best prices for ECM, PCM, Diesel Exhaust Fluid, Diesel Particulate Filter, Reductant Pump, Exhaust System, Reductant Injector Air Pump, Exhaust Gas Temperature Sensor, Reductant Injector and so much more to guide you in successfully repairing your vehicle.

It is important to diagnose this error code. These are a few steps that a mechanic has to read through to diagnose the problem that activated a P2063 code being stored:

• Utilize the scanner that is attached to the vehicle diagnostic connector to obtain all codes being stored and relevant freeze frame data. It is a beneficial approach to note down this information prior to clearing the codes, and then have the vehicle test-driven to an extent the PCM either has access to the preparation mode or the code is set again. If the PCM has access to preparation mode at this moment, the code is irregular and might be way more challenging to diagnose. In this scenario, the settings that provided to the code that is being stored might have to get even worse before you can make a consistent diagnosis. If the code is instantly set again, your diagnosis goes onto the next step of needing a proper source of vehicle information for the diagnostic flow-charts, connector pin-out charts, connector face views, and inspecting methods/identifications of all components.
• Step 1: Utilize the DVOM to inspect the reductant tank supply pump as stated by the vehicle producer’s identifications. Any components that are unable to be tested at the extreme are permissible within their parameters, and should be carefully thought out as faulty.
• Step 2: Utilize your reference of vehicle diagnostic data and the DVOM to examine the reductant supply pump voltage, which is normally a battery voltage, while activating the pump. If present settings will not allow for a self-activated power up, then use the scanner with your hands to trigger the pump.
• Step 3: If the reductant supply pump is operational, use the DVOM to examine input and output signal circuits coming out of the fuse panel, PCM, and ignition switch. Detach all controllers before using the DVOM to do testing.

Common Mistakes When Diagnosing the P2063 Code

Diesel fuel engines use spark plugs to produce explosion of fuel within the cylinder. In a correctly timed engine, this explosion happens at the right time slot to transfer the piston to the bottom of the cylinder and give off power to the drive shaft. If the plug wires are off course, the explosion takes place at the incorrect time slot. The incorrect time slot of the explosion occasionally forces the cylinder in the wrong path or disrupts the rotation of the crank. As an outcome, the engine stammers or misfires, if in fact it is running.

These mistakes frequently occur as described below:

• Failed DEF injector
• Wiring problem