P20AF - OBD Trouble Code
OBD Code P20AF - Reductant Metering Unit Temperature Sensor Circuit High
The trouble code P20AF can be explicated as
Reductant Metering Unit Temperature Sensor Circuit High. 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 P20AF
It is the engine control module which would examine the reductant metering unit temperature sensor. This trouble code would be set by the ECM when the reductant metering unit temperature sensor circuit would not be as per the parameters set by the manufacturer.
What causes this problem with the Reductant Metering Unit Temperature Sensor Circuit High?
- Imperfect reductant metering unit temperature sensor
- Issue of unbolted reductant metering unit temperature sensor harness
- Unacceptable electrical connection in the reductant metering unit temperature sensor circuit
- There can be inoperative powertrain control module
Replace/Repair These Parts To Fix Code P20AF
- Diesel Particulate
Filter - The diesel particulate filter acts as an
important component in managing the particulate emission in the exhaust system.
If the filter is damaged, it may lead to increased emissions and pollutants
through the tailpipe. Thus, replace damaged filter now!
- Engine Control
Module - It is not always the components, but the ECM
that can also be faulty. It can cause misinterpretation of correct data thus
leading to wrong operational decisions which will affect the transmission and
overall engine performance. Thus, replace faulty module and reprogram it now!
- Diesel Exhaust
Fluid Heater - If the diesel exhaust fluid heater is
faulty, it will not be able to aid in conversion of harmful nitrous oxide
compounds to nitrogen, carbon dioxide and water vapours to control emissions.
Thus, replace it immediately.
- Exhaust System
Parts - Your exhaust system begins at the engine with the
purpose of removing toxic gases and fumes from your vehicle. The components are
a series of pipes, catalytic converters, sensors, mufflers, and often a
resonator, as well as other emission devices. Thus, replace damaged exhaust
system parts now!
- Powertrain Control
Module - Powertrain Control Module can also be faulty in
rare cases and thus needs through checks for system and software errors. Thus
check and replace it, if required.
- Electronic Control
Unit - The ECU manages the cooling system to control the
battery operating temperatures and thus must be replaced, if found faulty.
Thus, buy new ECU modules and components from us!
- Diagnostic Tool
- Make use of quality diagnostic tools to resolve any OBD error code. Buy
quality diagnostic tools from us!
Symptoms Of The OBD Error Code P20AF
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 P20AF here:
Common Symptoms
- Illumination in the service engine soon light
How To Correct Reductant Metering Unit Temperature Sensor Circuit High Issue
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 P20AF:
- The malfunctioning PCM should be repaired or replaced as per the need
- Rehabilitate the defaults in the reductant metering unit temperature sensor harness
- Recondition the non-functioning electronic control unit
- Carefully adjust the faults in the reductant metering unit temperature sensor circuit
- The reductant metering unit temperature sensor should be restored to working order
Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced reductant metering unit temperature sensor, powertrain control module, diesel particulate filter, diesel exhaust fluid, def system parts, def fluid, pcm module, ecm module and a lot more to help you out in fixing your car.
Easy Diagnosis Of Engine Error OBD Code P20AF
If
you want to easily diagnose this trouble code, then you must follow the steps
which are mentioned here as below:
- A
technician begins by hooking the vehicle to an OBD-II scanner to verify that
the code is present, and check for other codes.
- The
freeze frame data along with current data is recorded, and the codes are then
cleared to see if they reoccur. Visual inspection of the wiring and connectors
to check for loose connections, corrosion, or shorts is done. Then the process
of diagnosis should start.
- Make
sure that the reductant metering unit temperature sensor should tight and
clean. Some people think that it is an obvious step, but if your computer does
not get a steady feed reductant metering unit temperature sensor, it can cause
multiple issues.
- Check
for wires and connectors that might be rubbed through, disconnected or loose.
It is also important to check the fuse box in your vehicle together with the
relay centre that can be found under the hood.
- It
is also important to make sure that the fuses are good. Make sure that there is
no melted plastic that can cause fire.
- These are some of the major wiring problems that you will encounter with error code P20AF. Once you have completely checked all the obvious things and still you can’t find the right solution, then you have to begin suspecting either the computer or the sensor.
Common
Mistakes When Diagnosing The P20AF Code
- Reductant
metering unit temperature sensor related issues
- Quirks
in the powertrain control module
- Issues
related with the car wiring