P0A91 - OBD Trouble Code

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The trouble code P0A91 can be elucidated as Drive Motor "B" Performance. One thing which you must keep in mind that its symptoms as well as causes would surely vary as it depends upon a number of things.

Are you tensed because the P0A91 fault code is flashing? We have got everything which you need and at equitable prices. You must visit us and we promise that you will never regret your decision. The HV transaxle 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.

What causes this problem with the Drive Motor "B" Performance?

• Unusable engine assembly
• Quirks in the Hv transaxle assembly 
• The transmission input damper might be damaged
• Wire harness or connector might have some issues
• Malfunctioning Hv control ecu

1. Hybrid Battery - There can be some issues with the Hybrid Battery due to which you may see P0A91 code appearing over and over again. Visit us to buy best quality Hybrid Battery online.
2. Auto Transmission Control Module - A lot of issues can arise do to defective Auto Transmission Control Module. Did you just see P0A91 code flashing? Now you know the reason why it is appearing. Get it inspected and replaced on time.
3. Exhaust Manifold And Converter Assembly - Faulty Exhaust Manifold and Converter Assembly can be the reason why P0A91 code is flashing. Visit us to purchase top notch Exhaust Manifold and Converter Assembly online.
4. HV Control Module - It is an important auto part which needs full care. A faulty Hv Control Module can be a reason behind the flashing up of P0A91 code.
5. Engine Assembly - OBD Code P0A91 can appear because of faulty Engine Assembly.
6. Transmission Input Damper - There can be some issues with the Transmission Input Damper due to which you may see P0A91 code appearing over and over again. Visit us to buy best quality Transmission Input Damper online.
7. Automatic Transmission Module - Are you facing some faults in your Automatic Transmission Module? Don’t worry and get them replaced or else P0A91 code can turn up.
8. Powertrain Control Module - Common cause behind this P0A91 error code can be some fault in Powertrain Control Module. So it will be a good decision to replace them now.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• Check engine light might come into signal
• Engine may not begin
• Vehicle may become firm

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:

• Rehabilitate the defaults in the engine assembly
• The malfunctioning auto transmission control module should be repaired or replaced as per the need
• You must fix the defective PCM/ECM
• Carefully adjust the faults in the transmission input damper
• Recondition the non-functioning Hv trans-axle assembly

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Here are some steps which you should follow in order to diagnose this fault code:

• The tools that will be required to diagnose a code P0A91 are a diagnostic scanner, a digital volt/ohmmeter, and a reliable vehicle information source.
• You can always clear the codes to verify that it is not an intermittent condition. Then the vehicle should be taken out for a road test and then the computer should be scanned once more to see if it returns.
• The air injection pump wiring harness should be carefully examined and at the same time you should check the connections for defects.
• Carefully check the air injection pump wiring harness as well as various other connections.
• Examine the system hoses and fittings for excessive heat damage, as well as other situations which due to which a leakage can be caused.
• The system fuses should be tested properly.
• You can always check the one-way check valves to be sure that air is only able to go through one way.
• Make sure to inspect the secondary air injection system pump.

Common Mistakes When Diagnosing The P0A91 Code

Common mistakes while diagnosing this trouble code are unnecessary and expensive replacements which usually happen when one don’t follow all the steps carefully. In this code usually people replace drive motor "B" without even properly diagnosing it.

The most common mistake while diagnosing this code is missing out on diagnosing steps which further leads to the expensive and unnecessary replacements. It is always recommended to seek help of experienced diagnostician to avoid any mistakes.

P0A90 - Drive Motor "A" Performance