Guide To P20C6 OBD Error Code Solutions
OBD Code P20C6 - Reductant Heater D Control Circuit Performance
Is that Check Engine Light flashing? Are you
experiencing reduced engine performance? If you answer is “YES” then there is a
possibility that your vehicle is indicating a fault with the reductant heater
“D” control circuit. In order to have deeper knowledge of this error code
P20C6, you will need to go through our following sections.
Learn More About OBD Error Code P20C6
In order to
solve any problem you need to understand that problem completely, So let's get
started with this problem from the very start i.e. what exactly this OBD error
code P20C6 indicates.
Your vehicle’s PCM, also known as the powertrain control module will set up this error code P20C6 when it detects inappropriate voltage that lies out of the normal expected or manufacturer specified value range for the on-board reductant heater for control circuit “D”. To know more about this error code, take a look at the section below.
What causes this problem with the Reductant Heater D Control Circuit Performance
- Non-operative reductant heater
- Non-operative reductant heater control circuit “D”
- Open or shorted reductant heater harnesses
- Poor electrical connections within the reductant heater harness
Replace/Repair These Parts To Fix Code P20C6
- Powertrain Control Module - You need to be aware of the fact that malfunctioning PCM can disrupt the normal functioning of
the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error such as P20C6 and thus can lead to misdiagnosis. So, it's definitely a good idea replace the damaged ones.
- Reductant Tank Heater - Freezed diesel exhaust fluid? Flashing OBD error code P20C6? All of this indicates towards a faulty
reductant tank heater. So, what are you waiting for? Replace the bad reductant tank heater today.
- EGR System & Parts - Be aware of the fact that a faulty 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 - OBD error code P20C6 flashing? Chances are that there could be a problem with your vehicle’s DEF parts, but don’t let that hold you back, fix your def filters and related parts now. You can find with us top notch def parts at the most budget friendly prices.
- Catalytic Converter - Chances of catalytic converter being damaged is high, as they are continually exposed to heat. If you need new cat converter to get rid of this error code P20C6 then you can find one with us at PartsAvatar.
- Diesel Exhaust Fluid - Dirty diesel exhaust fluids are not good for your vehicle’s health. Replace the dirty ones with a new one before it gets too late.
- Glow Plug Control Module - For a well functioning glow plug you will need a well functioning glow plug control module. If you are having error code P20C6 then you might need to undergo glow plug control module replacement. So, don’t think twice and replace the faulty one today.
Symptoms Of The OBD Error Code P20C6
Have you
ever wondered why is it so important to know the symptoms of the problem? Well,
it is extremely essential to know the symptoms of the problem in order to
detect it. Keeping this in mind, let’s throw some light on few common symptoms
of OBD error code P02C6
Common Symptoms
- Falling engine performance
- Black exhaust smoke emissions
- Fall in fuel efficiency
- Appearance of other related codes
How to Correct P20C6 Reductant Heater D Control Circuit Performance
Once 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’s
- You will need to repair or replace the faulty reductant heater
- You will need to repair or replace all the open or shorted reductant heater wires and connectors
- You will need to undergo electrical connections replacement for the reductant heater D control circuit
- Also, make sure you replace all the faulty catalytic converters and other related exhaust parts
- You will have to 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 parts to fix this issue, you no longer need to search for them. We at PartsAvatar Canada have an extensive range of auto parts in stock from you like PCM, EGR System, Diesel Particulate Filter, Catalytic Converter, Diesel Exhaust Fluid, Reductant Tank Heater, Reductant Heater Harness, Glow Plug Control Module from all replacement parts to all interior and exterior parts
Easy Diagnosis of Engine Error OBD Code P20C6
Here are some steps which you should follow in order to diagnose this fault code:
Start by getting 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 start 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.Next step is to 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 P20C6 Code
When you undergo error code P20C6 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