Guide To P204C OBD Error Code Solutions
OBD Code P204C - Reductant Pressure Sensor Circuit Low
The trouble code P204C can be explicated as
Reductant Pressure Sensor Circuit Low. This trouble code is generic, which
would mean that it can apply to all the vehicles which are equipped with the
OBD-II or the vehicles which are made since 1996 up to the present. The
specifications on the definition, the troubleshooting steps as well as repairs
can always vary from one vehicle make to another. This can happen because of a
lot of reasons and the mechanic should diagnose the specific cause for this
code.
Learn More About OBD Error Code P204C
It is the powertrain control module which would examine the reductant pressure sensor circuit. This trouble code would be set by the PCM when the degree of voltage in the reductant pressure sensor circuit would not be as per the parameters set by the manufacturer.
What causes this problem with the Reductant Pressure Sensor Circuit Low?
- Imperfect reductant pressure sensor
- Issue of unbolted reductant pressure sensor harness
- Unacceptable electrical connection in the reductant pressure sensor circuit
Replace/Repair These Parts To Fix Code P204C
- Exhaust Gas Recirculation Valve - Did you just see check engine light
flashing on your dashboard? If the computer would detect some fault with the
automobile’s EGR valve circuit, then it would set up the check engine light so
that the driver is notified about the fault. Don’t waste time and get them replaced or else this fault code
can turn up.
- Diesel Exhaust Fluid Pump - The diesel exhaust fluid pump needs to
work properly if the transmission system has to perform. If it is not
functioning, the transmission may slip and cause harsh shifts too. Thus replace
faulty pump now and buy a new one from us!
- Engine Control Module
- Is your car engine light still staying ON
after resetting or your car engine is turning off for no reason? Then these are
some common symptoms indicating that your car engine control module is
defective.
- Powertrain Control Module - The PCM works as the
central computer system in an automobile’s mechanism. This auto part is the in
charge of all the constituents as well as the functions performed by them.
Having such enormous importance in the operation of all the parts means that
any defect in it will affect almost every aspect of a car.
- Fuel Injector - If there is a leakage in the fuel injectors, then it might
cause rise in the fuel consumption, fuel odours around the vehicle and hard
starting. You can always rely on us as we have best auto parts for our
customers.
- Electronic Control Unit - The ECU is a major component of your car's onboard
computer. It's used to regulate many systems and subsystems in your car's
engine, drive train and other major components. Visit us to buy best quality
ECU online.
- Diagnostic Tools –
Take help of a professional mechanic to diagnose OBD code error. Use high grade
diagnostic tools to resolve this issue. Buy new tools and equipment form us!
Symptoms Of The OBD Error Code P204C
It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P204C here:
Common Symptoms
- Illumination in the service engine soon light
- There might be no DPF regeneration
How To Correct P204C Reductant Pressure Sensor Circuit Low
If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P204C:
- Make sure to mend the faulty reductant pressure sensor harness
- It is essential to restore the flawed electronic control unit
- Rehabilitate the defaults in the ECM/PCM
- Carefully adjust the faults in the reductant pressure sensor
- The reductant pressure sensor circuit should be restored to working order
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Easy Diagnosis Of Engine Error OBD Code P204C
If you want to easily diagnose this trouble code, then you must follow the steps which are mentioned here as below:
A good starting point is always a technical service bulletin search for your particular vehicle. Advanced diagnostic steps become very vehicle specific and may require the appropriate advanced equipment and knowledge to perform accurately. We include basic steps below but refer to a vehicle year/make/model/powertrain specific repair guide for specific steps for your vehicle. A scanner should be used to retrieve all stored codes and pertinent freeze frame data. It would be a great idea to write this information down before the codes have been cleared. Then the vehicle should be taken out for a test-drive until the PCM either enters readiness mode or the code is reset.
Now if the PCM enters readiness mode at this time, the code is intermittent and it would be very difficult to diagnose. If this is the situation, the conditions which contributed to the code being stored may need to worsen before a correct diagnosis can be made. If the code is immediately reset, the other step of your diagnosis would need that you search your automobile information source for diagnostic flow-charts, connector pin-out charts, connector face views, as well as constituent testing procedures/specifications.
The DVOM should be used to test the reductant pressure sensor according to manufacturer specifications. Components which do not test within maximum allowable parameters should be considered faulty. If actual reductant system pressure is as per the specifications, the code P204C would exist, and the sensor is in working order, use the DVOM to test input and output signal circuits between the pressure sensor and the PCM/SC.
Common Mistakes When Diagnosing The P204C Code
- Powertrain control module related issues
- Quirks in the reductant pressure sensor
- Issues related with the car wiring