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Guide To P0B3B OBD Error Code Solutions

OBD Code P0B3B - Hybrid Battery Voltage Sense "A" Circuit

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The trouble code P0B3B can be described as Hybrid Battery Voltage Sense "A" Circuit. The nickel metal-hydride batteries are used by the HV battery and there is no need of charging externally. The power management control ECU controls the SOC of the HV battery at a constant level while driving. There are 28 modules in the HV battery and every module would consist of eight 1.2 V cells in series. The battery block voltage at 14 locations is monitored by the battery smart unit. There are 2 modules in a set of every battery block.

Learn More About OBD Error Code P0B3B

Don’t worry if P0B3B error code is triggering again and again. We offer wide range of auto parts at affordable prices to our dear customers. 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.


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


  • Some defaults in the hybrid/electric vehicle battery pack
  • Malfunctioning hybrid/electric vehicle battery interface control module

Replace/Repair These Parts To Fix OBD Code P0B3B

  1. Powertrain Control Module - Do you remember when was the last time you got your car Powertrain Control Module checked up? A dirty Powertrain Control Module can cause a lot of issues like displaying P0B3B code.
  2. Car Battery Cable - Poor Car Battery Cable can cause a lot of difficulties, so why not get it replaced at time?
  3. Engine Control Module - OBD Code P0B3B can appear because of faulty boost pressure/ turbocharger position sensor.
  4. Car Battery - Everything is fine with Engine Control Module and still P0B3B code triggering? Then you must get your Car Battery checked.
  5. Electronic Control Unit - A lot of issues can arise do to defective Electronic Control Unit. Did you just see P0B3B code flashing? Now you know the reason why it is appearing. Get it inspected and replaced on time.
  6. Body Control Module Component - Faulty Body Control Module Component can be the reason why P0B3B code is flashing. Visit us to purchase top notch Body Control Module Component online.
  7. Hybrid Battery - It is an important auto part which needs full care. A faulty Hybrid Battery can be a reason behind the flashing up of P0B3B code.

Symptoms Of OBD Error Code P0B3B

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0B3B code by mentioning some major symptoms below:


Common Symptoms


  • There might be rise in the overall fuel consumption

How To Correct P0B3B Hybrid Battery Voltage Sense "A" Circuit

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0B3B:


  • Rehabilitate the defaults in the hybrid/electric vehicle battery interface control module
  • The malfunctioning engine control module should be repaired or replaced as per the need
  • It is essential to restore the flawed battery
  • Repair or replace the quirky hybrid/electric vehicle battery pack
  • The battery ECU should be restored to working order

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 battery control module, best car hybrid battery, electronic control module and many more. Now all your problems would vanish within no time.

Easy Diagnosis Of Engine Error OBD Code P0B3B

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


  • The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
  • After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
  • Most often he has to inspect the car battery cable itself to see if they are faulty or damaged. Additional error codes that are stored in the vehicle are also addressed.
  • If the car battery cable or the hybrid battery pack are not faulty, he will then retune the code and test drive the vehicle.
  • On test driving, if the P0B3B code does not return soon, he will know that an erratic condition exits.
  • But if the error returns instantaneously, he will check car battery cable, hybrid battery, car battery for any possible fault.
  • If any component is damaged, he will fix them right away.
  • After performing this repair, he will inspect the hybrid battery properly.
  • Every time a repair work is carried out, make sure that the mechanic test drives the vehicle after every repair so that the diagnosis is successful. This can eventually help him to know as to where the error occurred


Common Mistakes When Diagnosing The P0B3B Code


  • High voltage battery connection related issues
  • Quirks in the high voltage battery assembly
  • Issues related with the car wiring

Other Diagnostic Codes Related To OBD Code P0B3B

P0B3C - Hybrid Battery Voltage Sense "A" Circuit Range/Performance

P0B3D - Hybrid Battery Voltage Sense "A" Circuit Low

P0B3E - Hybrid Battery Voltage Sense "A" Circuit High

P0B3F - Hybrid Battery Voltage Sense "A" Circuit Intermittent/Erratic