Guide To P20AE OBD Error Code Solutions
OBD Code P20AE - Reductant Metering Unit Temperature Sensor Circuit Low
The
trouble code P20AE can be defined as Reductant Metering Unit Temperature Sensor
Circuit Low. The reductant metering unit temperature sensor is being monitored
by the engine control module. This trouble code would be set by the ECM when
the reductant metering unit temperature sensor circuit would not
be as per the specifications set by the manufacturer.
Learn More About OBD Error Code P20AE
It is the engine computer which would monitor the temperature of the system using the reductant metering unit temperature sensor. Now if an implausible signal would be sent by the temperature sensor, then it would give rise to the P20AE fault code. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.
What causes this problem with the Reductant Metering Unit Temperature Sensor Circuit Low?
- Malfunctioning reductant metering unit temperature sensor
- Reductant metering unit temperature sensor harness might be open or little
- Substandard electrical connection in the reductant metering unit temperature sensor circuit
- Powertrain control module might be flawed
Replace/Repair These Parts To Fix Code P20AE
- Engine Control
Module - The solenoid might cause a short in the engine control
module because of corrosion in the solenoid or the wire running from the
solenoid to the ECM harness.
- Electronic Control
Unit - The ECU power management control module keeps in
check the hybrid battery charging functions. If the ECU is faulty, the battery
pack will not be able to properly get charged and thus, the ECU might need
replacement.
- Powertrain Control
Module - A trouble with the PCM would mean that it is
unable to determine the right fuel mixture and would send the car engine either
more or less fuel than it requires. Now when the engine gets more, the carbon
emission would increase and fuel economy would drop. In case of the opposite, the
engine will choke, stutter, and might start stalling sometimes.
- Fuel Injector
- Bad fuel injectors can cause starting issues; poor idles and affected
performance. Thus, the replacements are in order. Buy new fuel injectors now!
- Exhaust Gas
Recirculation Valve - If the PCM detects any fault in the vehicle’s EGR valve circuit,
it will set up the check engine light so that the driver is notified about the
fault. Properly check for the EGR valve faults leading to this OBD code getting
stored in the system. Get the faulty EGR valve replaced or else this fault code
can turn up.
- Diesel Exhaust
Fluid Pump - Faulty DEF pump can lead to increased
emission and affected vehicle performance. It can also hamper the fuel economy
and the power output of the vehicle. Thus, replace faulty DEF pump now!
- Diagnostic Tool
- Usually any OBD code problem requires deep insight into the problem and high-grade
tools in order to fix it properly. Thus, buy quality diagnostic tools form us!
Symptoms Of The OBD Error Code P20AE
Willing to know some common symptoms of OBD Trouble Code P20AE? Your wish is our demand. Have a look at them below:
Common Symptoms
- Visibility in the check engine light
How To Correct Reductant Metering Unit Temperature Sensor Circuit Low 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 P20AE:
- Adjust the flawed PCM or programming error
- Replace or repair the defective electronic control unit
- You must fix the defective reductant metering unit temperature sensor circuit
- Rehabilitate the defaults in the reductant metering unit temperature sensor
- Recondition the non-functioning reductant metering unit temperature sensor harness
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Easy Diagnosis Of Engine Error OBD Code P20AE
If
you want to easily diagnose this fault code, then all you have to do is to
follow the steps which are mentioned 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.
A
specialized tool may be used to test the reductant metering unit temperature
sensor. Other tests of the reductant metering unit temperature sensor and its
components may help pinpoint the problem, as well as inspection of the wiring
and connectors.
Disconnect
and check the resistance and signal voltage from the reductant metering unit
temperature sensor circuit. If all the components check out, inspect for the
fault in the PCM as it can sometime store wrong OBD code and thus might need
replacement or reprogramming.
Common
Mistakes When Diagnosing The P20AE Code
- Some
issues related to the reductant metering unit temperature sensor
- Failure
in the powertrain control module
- Issues
related to the wiring