P20C7 - OBD Trouble Code
OBD Code P20C7 - Reductant Heater D Control Circuit Low
Is your vehicle’s PCM/ECM flashing OBD error code
P20C7? Is your vehicle showing decline in engine efficiency and an increase in
exhaust emissions with a steep fall in fuel economy? If yes, then we are quite
certain that you are facing obd error code P20C7. Willing to know more about
it? Read through our subsequent sections to have a better understanding for the
same.
Learn More About OBD Error Code P20C7
OBD error code P20C7 just like other related obd error code (P20C5, P20C6, P20C8) indicates some problem with the reductant heater D control circuit. If the vehicle's PCM (powertrain control module) detects a low voltage from reductant heater “D” control circuit, then it will set the error code P20C7. In other words it means that the reductant heater “D” control circuit is shorted or low. To know about few of its common causes have a look at the below listed bullet point.
What causes this problem with the Reductant Heater D Control Circuit Low
- Non-operative reductant heater
- Open or shorted reductant heater harness
- Poor electrical connection in the reductant heater circuit
Replace/Repair These Parts To Fix Code P20C7
- Powertrain Control Module - Error code P20C7 flashing? Yes? Then you must check for PCM error which might be due to circuit faults that might require complete replacement and reprogramming. Replace it now!
- Reductant Tank Heater - Believe it or not but it is a good idea to replace the defective ones with brand new reductant tank heater, considering that P20C7 code indicates issues with your vehicle’s reductant tank heater “D” control circuit. You can find with us high quality ones for every make & model on the Canadian roads.
- EGR System & Parts - Malfunctioning engine gas recirculation can create performance issues with your vehicle, something that you definitely don’t want to happen with your beloved vehicles. So, what are you waiting for? Replace the faulty one today.
- Diesel Particulate System & Parts - You definitely need to avoid increased vehicle’s emissions and occurence of OBD error code P20C7, replace the faulty diesel particulate system and parts today.
- Catalytic Converter - Looking for catalytic converters? Well, now is the time you get new ones for your car with us at PartsAvatar and get your part at best prices online.
- Diesel Exhaust Fluid - Don’t let dirty diesel exhaust fluid affect your DPF system effectiveness. Replace the dirty diesel exhaust fluids to improve your vehicle’s performance and get rid of the error code P20C7.
- Glow Plug Control Module - Glow plug control modules are responsible for controlling and monitoring the well functioning of the glow plugs in your vehicle. Make sure you have a well functioning glow plug module installed in your car.
Symptoms Of The OBD Error Code P20C7
Well, if
you are looking to know about the common symptoms related to this error code
P02C7, we are have worked out a small list to help you discover this error code
with your vehicle.
Common Symptoms
- Release of excessive black emissions from exhaust system
- Appearance of other related error codes
- Decline in fuel economy
- Steep fall in engine performance
How to Correct P20C7 Reductant Heater D Control Circuit Low
Fixing
problems with your car is not as easy as it might seem. You need to be
extremely careful and follow certain steps.
- Replace the faulty reductant heater replacement
- You will also need to undergo open or shorted reductant heater wires and connectors
- Next step is to replace the electrical connections for the reductant heater D control circuit
- Also make sure to change the faulty catalytic converters and other related exhaust parts
- Ensure that vehicle’s control modules - glow plug control modules and powertrain control module are in best shape, if not, then undergo their replacement at the earliest.
If you need parts to correct this problem, you can easily find them all with us at PartsAvatar. We have PCM, EGR System, Diesel Particulate Filter, Catalytic Converter, Diesel Exhaust Fluid, Reductant Tank Heater, Reductant Heater Harness, Glow Plug Control Module in stock high end auto parts from top automotive brands. So, what are you waiting for? Grab best deals today with us.
Easy Diagnosis of Engine Error OBD Code P20C7
Get hold of a diagnostic scanner, digital volt/ohmmeter and a reliable source of vehicle diagnostics.It will be really helpful if you could get hold of technical service bulletin (TSB) specific to your vehicle. Believe us it will prove to be extremely helpful for you in your diagnosis process. While choosing a TSB, make sure that it matches your vehicle year, make, and model and also the engine size. To begin you diagnosis, undergo a complete visual inspection of your vehicle’s reductant heater D control circuit and related harnesses and connectors.Make sure the wires and connectors are not burnt or damaged, in case they are you will need repair or replace them. Now, connect the diagnostic scanner to the diagnostic port of your vehicle and restore all the store codes and freeze the frame data. Not the information and clear all the codes. After this test drive the vehicle till the vehicles PCM enters the readiness mode or the code is reset. In case of an intermittent code, it will be more difficult to diagnose it as the condition which set this code needs to be worsen in order to diagnose this code. In case the code resets itself, then you will need to look into the vehicle information source to get the diagnostic flow charts flow charts, connector pin out charts, connector face views, as well as component testing procedures and specifications. You will need this information to move on to the next diagnosis step. Make use of the DVOM to check the power supply to the SCR control system. Also, check the fuses with loaded circuit to avoid an sort of misdiagnosis. In case you discover inappropriate power or voltage, then you will need to test the output control circuit voltage. If this voltage turns out to be insufficient then check if the controller is bad or is facing any programming error. In case the voltage output circuit turns out to be within the needed parameters, then use the DVOM to check the reductant heater element for D control circuit. You can consider as failed if the heater fails to meet manufacturer’s specifications.
Common Mistakes When Diagnosing the P20C7 Code
When you undergo error code P20C7 diagnosis, few misdiagnosis are common. In order to make sure that you don’t commit any, make sure to keep an eye on the following failures:
- Failing glow plug control module
- Failing reductant tank heater
- Troublesome wiring