P2047 OBD Error Code: Problem & Solutions

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See the error code P2047? Alarmed? Well, here’ all you need to know about the error code P2047. The leftover exhaust particles are converted to harmless gases with the help of diesel exhaust fluid (DEF). The temperature of the exhaust system needs to increase for burning off those particles. The introduction of DEF fluid into the exhaust stream brings diesel particulate filter (PDF) up to the temperature mark. This enables the system to convert toxic NOx to nitrogen, carbon dioxide and water. The code will P2047 will set incase the DEF injector fails to operate properly, code P2047. 

The P2047 code indicates at the presence of a defect in the reductant injection valve circuit, bank 1 unit 1. The emission gases exiting the exhaust are reduced using the reductant injector by injecting either air or chemicals which depend on the usage and the vehicle. The check engine light will be flashed on the dashboard incase any fault is detected in the redundant injector circuit by the ECU. The detection of any such fault will result in the setting of the code P2047.

What causes this problem with the Reductant Injection Valve Circuit Open Bank 1 Unit 1?

• Faulty reductant injection valve
• Loose or corroded circuits in the reductant injection valve control
• Poor or faulty SCR controller/PCM or programming error
• Inadequate DEF in the reservoir

1. Reductant injection valve - Wondering on how to treat the error code P2047? Well, it could be showing up again and again due to problems in your reductant injection valve. Not only the code is triggered but also you may notice problems like harsh shifting and an illuminated check engine light. Tune into Parts Avatar for your new reductant injection valve.
2. Diesel exhaust fluid pump - Now get your error code P2047 fixed right away by simply replacing or repairing your diesel exhaust fluid pump. All you gotta do is log into our website now!
3. Exhaust system parts - Experiencing a failure in any of your exhaust system parts? This could be really harmful as such a fault triggers misfires and a poor fuel economy. Now you can fix your error code P2047 by simply fixing your exhaust system parts. Log in now!
4. Diesel particulate filter - Seeing soot particles accumulated on the exhaust? Well, it is due to a clogged diesel particulate filter. Visit us today if you want to get your vehicle’ DPF filter replaced.
5. Powertrain control module - Can’t start the car or experiencing a no-start condition? Yes, it could all be due to your malfunctioning powertrain control module. Parts Avatar, your one stop shopping destination has it all! Tune in now!
6. Reductant injector - This essential auto part, the reductant injector is used to adjust the amount of reductant that is provided to exhaust system by the emissions control system. So to maintain the sound functioning of a reductant injector, you should change or repair a faulty one immediately.

For us our customers are everything, and that’s why we will help you to diagnose P2047 code by mentioning some important symptoms below:

Common Symptoms

• Reductant engine performance
• Increased amounts of black smoke from vehicle exhaust
• Decrease in fuel efficiency
• Codes related to SCR

After you know the symptoms of your vehicle’s problem, it becomes easy to detect it and get started with solving it. So, next on our list is few common steps to correct this issue with your vehicle:

• Repairing faulty electrical connection issues
• Mend or replace the reductant injector wiring harness
• All exhaust leaks to be repaired
• Supplant the faulty exhaust gas temperature sensor

Apart from this, you might need to replace other damaged parts too like pcm, dpf, diesel exhaust fluid, exhaust system, reductant injector, reductant injection valve and more. You can easily find all these parts with us. Not only that you can get these parts shipped to your door free, if your cart value happens to exceed $99.

Here are some steps which you should follow in order to diagnose this fault code:

• In order to diagnose a code P2047, you will need a diagnostic scanner, a digital volt/ohmmeter (DVOM), and a source of vehicle specific diagnostic information.
• Useful diagnostic information can also be obtained through the use of a technical service bulletin (TSB) that matches the vehicle year, make and model, as well as the engine size, code/s stored, and symptoms it displays.
• An ideal step to begin your diagnosis would be a visual inspection of the reductant heater system harnesses and connectors. Damaged or corroded wiring and or elements should be mended or replaced as required before proceeding.
• The next step after following the above procedure would be hooking the scanner to the vehicle diagnostic connector and reviving all stored codes or relevant freeze frame data. It would be useful to write down this information before clearing the codes and test driving the vehicle until the PCM either leads to the resetting of the code or the vehicle enters the readiness mode.
• If the PCM enters readiness mode, it may become much more difficult to diagnose this code because it becomes intermittent at this stage. If such a case occurs, the conditions due to which the code has become stored may need to aggravate before an accurate diagnosis can be made.
• Incase the code has been reset, it is important to complete your next step of your diagnosis, it is essential to obtain information such as diagnostic flow charts, connector pin out charts, connector face views and information related to component testing procedures and specifications. This information can be obtained through searching your source of vehicle information.
• The DVOM should be used for testing the power supply to the SCR control system. To avoid misdiagnosis, the fuses should be tested with the circuit loaded. If the results display the required power (battery voltage) and ground circuits, the scanner should be used to activate the reductant injector valve and test output circuit voltage. Deficient voltage is indicative of a programming error or a damaged controller.

Common Mistakes When Diagnosing the P2047 Code

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

• A faulty DEF injector
• A failed powertrain control module (PCM)
• Wiring issues in the system