Guide To P0A90 OBD Error Code Solutions

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The trouble code P0A90 can be explained as Drive Motor "A" Performance. The HV trans-axle compromises of a planetary gear unit, MG1 and MG2. A planetary gear is used by a gear unit to split engine output in accordance with a driving request while driving the automobile or when the internal HV battery is being charged. Help if provided to the engine output by the MG2 while raising the drive force of the automobile. The braking is also regenerated by the MG2 effects as it converts the energy into the electrical energy and then it would be recovered into the HV battery. With the help of regenerative braking, as well as decelerating the vehicle, high-voltage electrical power is generated by the MG2 which is utilized for the role of charging the HV battery.

Do you want to know more about the P0A90 fault code? Don’t worry! Parts Avatar Canada is here at your service. 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. 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 Drive Motor "A" Performance?

• Malfunctioning engine assembly
• Imperfect HV trans-axle assembly
• There can be inoperative transmission input damper
• Some issues related to the wire harness or connector
• The HV control ecu might not be functioning properly

1. Exhaust Manifold And Converter Assembly - A faulty Exhaust Manifold And Converter Assembly can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Transmission Input Damper - If everything is alright with PCM, then there is surely some defect in Transmission Input Damper. Get it replaced before the situation gets worse.
3. Engine Assembly - P0A90 code can display due to some faults in the Engine Assembly. So it is very important to replace the Engine Assembly with us at equitable prices.
4. HV Control Module - Do you remember when was the last time you got your car HV Control Module checked up? A dirty HV Control Module can cause a lot of issues like displaying P0A90 code.
5. Engine Control Module - Poor Engine Control Module can cause a lot of difficulties, so why not get it replaced at time?
6. Hybrid Battery - Are there some faults in your Hybrid Battery? Don’t waste time and get them replaced or else P0A90 code can turn up.
7. Automatic Transmission Module - OBD Code P0A90 can appear because of faulty Automatic Transmission Module.
8. Auto Transmission Control Module - Everything is fine with Hybrid Battery and still P0A90 code triggering? Then you must get your Auto Transmission Control Module checked.
9. Powertrain Control Module - There can be some issues with the Powertrain Control Module due to which you may see P0A90 code appearing over and over again. Visit us to buy best quality PCM online.

There could be countless symptoms which that would accompany with this fault code. Willing to know some common symptoms of OBD Trouble Code P0A90? Your wish is our demand. Have a look at them below:

Common Symptoms

• Illumination in the service engine soon light
• There can be some issues in beginning the car engine
• Vehicle may not move

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• You must fix the defective engine assembly
• Make sure to mend the faulty HV trans-axle assembly
• It is essential to restore the flawed transmission input damper
• Repair or replace the quirky wire harness or connector
• Rehabilitate the defaults in the HV control ecu
• The malfunctioning ECM should be repaired or replaced as per the need
• Carefully adjust the faults in the hybrid battery

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• To begin the diagnosis, a specialized scan tool should be used by a certified technician to verify the code P0A90.
• The ECM connected to the scan tool, collect the data about the numerous functions of the vehicle’s systems and reports the results that fall outside the required parameters.
• The results can then be compared to the professional reference manuals in order to determine the cause of the error code P0A90.
• At times, performing other scans or a manufacturer pinpoint test may also become essential to diagnose the error code accurately.

P0A91 - Drive Motor "B" Performance