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P0B26 OBD Error Code: Problem & Solutions

OBD Code P0B26 - Hybrid Battery "A" Voltage High

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Is your engine creating performance issues? Is your vehicle consuming more fuel than usual? Or you are experiencing decreased engine performance these days? If your answer is ‘YES’ to all these question, then we have no good news to tell you. Chances are that your engine is set to P0B26 obd error code.

Now, what is this alien code - P0B26? Let’s have a look at the sections below to understand it better.

Learn More About OBD Error Code P0B26

Wondering what this error code indicates? How is it affecting your engine’s performance? P0B26 is a generic OBD-II code that indicates an issue with your vehicle’s hybrid battery “A” voltage system, in other words it means that there exists more than specified voltage in your vehicle’s hybrid battery “A” circuit.


What causes this problem with the Hybrid Battery "A" Voltage High?

  • Damaged hybrid battery pack
  • There might be an opening or the battery energy control module harness might have a short circuit
  • The electrical connection of the battery energy control module circuit might be weak

Replace/Repair These Parts To Fix Code P0B26

  1. Hybrid Battery Pack - A damaged or defective hybrid battery pack has to be replaced quickly to avoid troubles in the system, if you need one for your vehicle, then you can easily find one with us at PartsAvatar.
  2. Hybrid Battery Pack Current Sensor Get rid of the P0B26 error code by changing the faulty hybrid battery pack current sensor.
  3. Battery Cables - Facing troubles with your faulty battery cable? Then it’s high time to get a new battery cable from Parts Avatar.
  4. Battery Contactor Assembly - Need to undergo battery contactor assembly replacement? Worried about the cost? Well, you no longer need to worry about that as we have for you best priced battery and parts in stock for you to correct this obd error code P0B26.
  5. Battery Control Module - if you need battery control module to correct your obd error code P0B26 then you can simply browse through our PartsAvatar website and get your hands on the best selection of parts available.
  6. Engine Control Module - The easiest way to get rid of the P0B26 error code is to replace the damaged engine control module as soon as possible.
  7. Powertrain Control Module - Chances are that if you are facing OBD error code P0B26, your vehicle’s PCM i.e. powertrain control module is itself damaged. So why not replace them at the earliest?
  8. Battery Current Sensor - A faulty battery current sensor will need immediate replacement so that the system functions normally
  9. Battery Control Module - Are you looking for a replacement for your faulty battery control module? Shop them from PartsAvatar at best prices online.
  10. Engine Control Module - P0B26 error can be avoided if the damaged engine control module is replaced or repaired.

Symptoms Of the OBD Error Code P0B26

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0B26 code by mentioning some major symptoms below:


Common Symptoms


  • Flashing of the check engine light
  • Non-functioning of the high voltage system
  • Compromised acceleration
  • Loss of engine vacuum

How To Correct Hybrid Battery "A" Voltage High

Have a look at some ways with which you can correct the P0B26 code:


  • Faulty hybrid battery pack/ hybrid battery pack current sensor has to be fixed.
  • Damaged battery cables need replacement.
  • Defective battery control module and engine control module needs fixation.

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Hybrid Battery Pack, Hybrid Battery Voltage Sensor, Battery Energy Control Module, Battery Cable, Battery Contactor Assembly, Battery Control Module, Engine Control Module, Powertrain Control Module and many more. Now all your problems would vanish within no time.

Easy Diagnosis of Engine Error OBD Code P0B26

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:


  • One of the main reason for the P0B26 error code is because of the engine light which has failed.
  • Firstly, the mechanic will check the gas cap for the faulty engine light.
  • He will visually inspect the gas cap for any possible damages or cracks. If there are no damages, he will pull over and retighten the gas cap.
  • After making sure that there are no damages in the gas cap, the mechanic will test drive the vehicle and see if the engine light still appears.
  • Another reason, as to why this error code appears is because faulty hybrid battery pack/ hybrid battery pack current sensor.
  • The mechanic will look after these components very carefully and replace them if they are damaged.
  • After this, the mechanic will check the battery cables, battery current sensor and battery control module for any possible damages and fix if any issue arises.
  • As a very rare case, the mechanic will carefully check for any faults in the engine control module and replace them if they are found to be damaged.
  • After carrying out this diagnosis, the mechanic will reset the vehicle for any error codes and test drive the vehicle again to see if the error code still appears and the engine light turns on.


Common Mistakes When Diagnosing the P0B26 Code


Conducting a diagnosis is not as easy as it might seem, even the top notch mechanic can commit few errors. To avoid any of these misdiagnosis you need to follow the diagnostic steps with precision.

Make sure you check each and every part related to OBD error code P0B26 to make sure you are diagnosing the problem effectively, and there occurs no misdiagnosis. There might occur the following errors


  • Failure of the high voltage battery assembly.
  • Damaged battery current sensor.
  • Malfunctioning battery control module.

Other Diagnostic Codes Related To OBD Code P0B26

P0B23 - Hybrid Battery "A" Voltage

P0B24 - Hybrid Battery "A" Voltage Unstable

P0B25 - Hybrid Battery "A" Voltage Low