P20C5 OBD Error Code: Problem & Solutions
OBD Code P20C5 - Reductant Heater D Control Circuit/Open
OBD error code P20C5 is a generic OBD error code
that indicates reductant heater “D” control circuit is open. To know more about
this generic error code, you will need to go through our subsequent sections.
We have listed out few common causes and symptoms related to this error code,
along with the ways and means to diagnose and correct it. So, what are you
waiting for? Dive into the pool of P20C5 information right now.
Learn More About OBD Error Code P20C5
OBD error code P20C5 stored? It is a serious error code and must
be addressed at the earliest. Your vehicle’s powertrain control module will set
this OBD error code P20C5 when it detects no voltage on the control circuit for
reductant heater D. This will result in the illumination of the check engine
light. To know more about this error code, take a look at the subsequent
sections.
What causes this problem with the Reductant Heater D Control Circuit/Open
- Bad reductant Heater
- Open or shorted reductant heater harness
- Bad reductant heater circuit electrical connections
Replace/Repair These Parts To Fix Code P20C5
- Powertrain Control
Module - Faulty PCM? Well, we suggest you to repair it at
the earliest as this will cause the system to store wrong OBD errors and thus
can lead to misdiagnosis. If you need one for your vehicle, you can find one
with us.
- Reductant Tank Heater - Having problems with
your reductant tank heater can really lead to OBD error code P20C5. So, we
definitely recommend you to stop thinking and replace your damaged reductant
tank heater today.
- EGR System &
Parts - It is an emission system that is designed to
recirculate exhaust gases back into the vehicle's intake so that it can reduce
cylinder temperature and NOx emissions and also the occurrence of OBD error
code P20C5. Get rid of these issues by replacing the damaged ones with a new
one today.
- Catalytic Converter -
Having problems with your catalytic converter can really escalate your
problem with the o2 sensor circuit malfunctioning. So, we definitely recommend
you to stop thinking and replace your damaged or faulty cat converters today.
- Diesel Exhaust
Fluid - Looking for diesel exhaust fluid to fix OBD
error code P20C5? If YES, then all you need to do is to browse through our
website. You can find the most budget friendly parts with us.
- Glow Plug Control Module - If you need glow plug control module to fix your car then we have
a good news for you. We have in stock not only high end glow plug control
module but we also have them for all makes and models. So what are you waiting
for? Just dive into the pool of best auto parts with PartsAvatar.
Symptoms Of The OBD Error Code P20C5
Next important thing you need to know about are the common
symptoms for this obd error code P20C5 with your fuel volume control.
Common Symptoms
- Fall in vehicle’s overall performance
- Fall in fuel economy
- Decline in vehicle’s engine health
- Black emissions from vehicles exhaust
- Occurence of other SCR error codes
How to Correct P20C5 Reductant Heater D Control Circuit/Open
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.
- To start with, you will need to undergo faulty reductant heater
replacement
- Inspect and repair or replace all the open or shorted reductant
heater wires and connectors
- Make sure that you undergo fixing the electrical connections for
the reductant heater D control circuit
- Fix or replace the faulty catalytic converters and other related
exhaust parts
- Make sure that your 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 any parts to fix this problem you can easily find them with us. Not only that we also have in stock the best in range auto parts and that too at the most budget friendly prices ever online. Whether you need a PCM, EGR System, Diesel Particulate Filter, Catalytic Converter, Diesel Exhaust Fluid, Reductant Tank Heater, Reductant Heater Harness, Glow Plug Control Module, you can simply rely on us for quality auto parts.
Easy Diagnosis of Engine Error OBD Code P20C5
If you want to easily diagnose this fault code P20C5, then all you have to do is to follow the steps which are mentioned below:
- Get hold of a diagnostic scanner, digital volt/ohmmeter and a reliable source of vehicle diagnostics to start your diagnosis. 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.
- Now, 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.
- Next, 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.
- Now, if 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 P20C5 Code
When you undergo error code P20C5 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