P0A44 - OBD Trouble Code

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What does P0A44 error code signify? What are the symptoms if this error code is stored in the vehicle? If the high voltage system does not function properly, it is called drive motor ‘A’ position sensor circuit over speed. Sensors are used by the high control module to find the location of hybrid motor’s internal components. The ECM module will set the P0A44 error code if the position sensor is damaged.

It is possible to find the exact position of the magnetic poles of a motor generator’s rotor with the help of a resolver as it is also a sensor. It is vital to find the position of the poles to make sure of the exact control of MG1 and MG2. Each resolver which also has a stator contains an excitations coil and 2 detection coils(S, C). The in-between gap between the stator and rotor will change due to the oval position of the rotor. You will see an erratic current with determined frequency flowing through the excitation coil, detection coil S and C with respect to the sensor rotor position. Based on the phases of detection coils S and C, the rotor’s correct position and height of waveform is found by the inverter along with converter assembly. To use the resolver as speed sensor, the CPU will analyze the amount of change in position with fixed length of time. The signal output is monitored by MG ECU from motor resolver and find out if any component malfunctions.

What causes this problem with the Drive Motor "A" Position Sensor Circuit Overspeed?

• Broken inverter along with the converter assembly.
• The hybrid vehicle generator assembly might be broken.
• Damaged hybrid vehicle motor assembly.
• Connectors or the engine wiring harness might be problematic.

1. Position Sensor - Get The Right Replacement For Your Faulty Position Sensor From Parts Avatar At Best Prices Online.
2. Drive Coil - One Of The Easiest Way To Get Rid Of The P0A44 Error In Your Vehicle Is By Changing The Damaged Drive Coils.
3. Metallic Rotor - The Metallic Rotors Which Are Malfunctioning Must Be Changed Immediately To Avoid The P0A44 Error Code.
4. Motor Generator - P0A44 Error Can Be Avoided When The Damaged Motor Generator Is Repaired Or Replaced.
5. Converter Assembly - If You Want To Avoid The P0A44 Error In The Vehicle, Then The Damaged Converter Assembly Must Be Fixed.
6. Generator Assembly - The Faulty Generator Assembly Has To Be Fixed For The Vehicle To Function Normally.
7. Motor Assembly - The Malfunctioning Motor Assembly Has To Be Changed As Soon As Possible To Avoid The P0A44 Error Code.
8. Engine Wiring Connector - Is The Connector Broken? Get The Replacement For Faulty Connectors At Affordable Prices From Parts Avatar.

If you are facing OBD error code P0A44, then there are significant common symptoms that can be felt or observed. We have worked out a list here to help you out in understanding this problem better.

Common Symptoms

• You might notice the flashing of the engine light and the warning light of the service engine.
• The system which has high voltage will not function properly.

It is very important to fix the fault code P0A44. So here are some ways with which you can correct this issue:

• The damaged converter assembly and generator assembly needs fixation.
• Fixing the defective connectors.
• Faulty motor generator and motor assembly has to be changed.

However, if you face any issue then we have stocked a wide range of best powertrain control module (PCM), fuel injector, body control module, fuel injection pump, electronic control module, and more to help you out in fixing your car.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0A44 code to be stored:

• This is a general type of diagnostic trouble code where the mechanic will use a scanner to identify the error code that is stored in the vehicle.
• Every of the freeze frame data and stored codes will be recovered by connecting a scanner to the diagnostic port of the vehicle.
• This information can help the mechanic with further diagnosis.
• Initially the mechanic will start inspecting the drive coils and position sensor for any possible damages or defects.
• If there are no faults or stored error codes the mechanic will about checking the components like motor generator, generator assembly, motor assembly if they are defective or broken.
• As a very rare case, the mechanic may come across the connectors which might be faulty or broken. The mechanic will address this issue accordingly.
• Once the diagnosis is fully done, the mechanic will reset the code and try to test drive the vehicle to see if the engine light keeps flashing and if the error code still appears.
• This process will eventually help the mechanic to know as to where the actual fault arises.

Common Mistakes When Diagnosing the P0A44 Code

The technician may go about searching for the issue in the vehicle for diagnosing the P0A44 error, whereas the issue may be with the engine wires, high voltage control module and high voltage motor which needs replacement.