Error Code P0AF4: What It Means & What To Do?
OBD Code P0AF4 - Drive Motor Inverter Temperature Sensor "B" Circuit Low
The trouble code P0AF4 can be explicated as Drive Motor Inverter Temperature Sensor “B” Circuit Low. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.
Learn More About OBD Error Code P0AF4
It
is always good to learn more! That is the reason why we are here to help you
out in gaining more knowledge about the P0AF4 error code. The drive motor
"B" inverter power supply circuit is being monitored by the engine
control module. This trouble code would be set by the ECM when the drive motor
"B" inverter power supply circuit would not be as per the
specifications set by the manufacturer.
What causes this
problem with the P0AF4 Drive Motor Inverter Temperature Sensor 'B' Circuit Low?
- Hybrid
Vehicle Motor faulty
- Hybrid
Vehicle Motor harness is open or shorted
- Poor
electrical connection to Hybrid Vehicle Motor circuit
- Oxygen
Sensor failure
- Intake
manifold failure
- ECU
and PCM faults
Replace/Repair These Parts To Fix OBD Code P0AF4
- 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.
- 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!
- Motor Assembly - Affected motor assembly will lead to engine misfires and increased fuel consumption as well as reduced motor output. Thus, replace it in time.
Symptoms Of OBD Error Code P0AF4
We
at Parts Avatar Canada care for our customers, and that’s why we will help you
to diagnose P0AF4 code by listing out some major symptoms. They are mentioned
below as follows:
Common Symptoms
- Check
engine light can start flashing up
- High
voltage system not functioning properly
- Engine
misfires and stalling
- Lean
engine condition
How To Correct P0AF4 Drive Motor Inverter Temperature Sensor "B" Circuit Low
Learn the ways with which you can correct this
trouble code:
- You must fix the defective engine control
module
- Restore the flawed drive motor B temperature
sensor
- Rehabilitate the defaults in the drive motor B
temperature sensor circuit
- Repair or replace malfunctioning drive motor B
temperature sensor harness and connectors
- Repair or replace ECU and PCM
Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of Inverter/Converter Assembly, HV Control ECU and a lot more. We are sure that now all your issues would be resolved.
Easy Diagnosis Of Engine Error OBD Code P0AF4
If
you want to easily diagnose this fault code, then all you have to do is to
follow the steps which are mentioned below:
- This
is a general type of error code which is diagnosed with the help of a scanner.
- The
mechanic will insert a scanner to diagnostic port of the vehicle and recover
the codes and freeze frame data.
- If
he happens to find any additional error codes, he has to address them as well.
- Once
it is done, he has to reset the vehicle, and then test drive to see if the
error code appears.
- If
the error code does not return, then there can be an erratic condition.
- But,
if the error code returns, then the mechanic has to check the transmission
fluid.
- If
the transmission fluid is dirty or if it is below the expected level, it has to
be refilled or the dirty fluid has to be replaced.
- Also,
the mechanic can check for any sign of leaks, and quickly fix the issue.
- Then
the mechanic has to check the wires, connectors and other electrical components
and quickly replace them if he finds them to be damaged or defective.
- If
the issues are not yet sorted out, then the mechanic will use a digital
voltmeter/ ohmmeter and connect it to the vehicle.
- Once
the circuit is inspected, he will thoroughly check all the harness and repair
them accordingly.
- In
most cases, this error code can arise mostly because of any shorted wires or
dirty or contaminated transmission fluid.
- Whenever
the mechanic or a trained professional, repairs any of the component like wires
or connectors, he will reset the code and test drive the vehicle again to see
if the error code appears again.
- This
can actually help the mechanic to know if the problem is fixed.
Common Mistakes When Diagnosing the P0AF4 Code
A
lot of people make a big mistake of attempting to diagnose the hybrid motor
temperature sensor directly. Save yourself a big headache and make sure that
you are doing proper analysis and checking each component step by step before
coming to any conclusion.3
- Check
for faulty wiring and connectors
- Faults
in the Motor Temperature Sensor
- ECU
and PCM fault checks