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Error Code P0B15: What It Means & What To Do?

OBD Code P0B15 - Hybrid Battery Pack Voltage Sense "B" Circuit Range/Performance

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What causes the P0B15 error to get stored in the vehicle? Do you know the diagnostic procedure? Are you looking for this information? Then you are in the right place. Keep reading. The hybrid battery pack voltage sense ‘B’ circuit is carefully looked after by the engine control module (ECM). The OBD error code P0B15 will be set in the vehicle by the engine control module if the factory specification is not met by the hybrid battery pack voltage sense ‘B’ circuit.

Learn More About OBD Error Code P0B15

P0B15 is a general type of error code which is commonly known as the hybrid battery pack voltage sense ‘B’ circuit range/ performance. There are many individual battery cells like about 300 cells in the hybrid battery pack. These cells are then grouped together. Each of this group has a voltage monitor fixed to it so that the battery control module also known as the hybrid powertrain control module will give the information as to how much voltage is present in each cell group. If the voltage is less in the cell group, P0B15 error will be set in the vehicle.


What causes this problem with the Hybrid Battery Pack Voltage Sense "B" Circuit Range /Performance?


  • The hybrid battery pack might seem to be defective.
  • You might find an opening in the hybrid battery pack harness or the circuit might be shorted.
  • The electrical connection might be poor in the hybrid battery pack.

Replace/Repair These Parts To Fix OBD Code P0B15

  1. Hybrid Battery Pack - Are you looking for a replacement for your defective hybrid battery pack? Get it from Parts Avatar.
  2. Hybrid Battery Pack Current Sensor - The damaged hybrid battery pack current sensor needs immediate fixation to avoid the P0B15 error code.
  3. Battery Cables - You can find the replacement for your damaged battery cables from Parts Avatar at the best prices online.
  4. Battery Current Sensor - Get the right replacement for your defective battery current sensor at the best prices from Parts Avatar.
  5. Battery Control Module Repairing the faulty battery control module is one of the best ways to get rid of the P0B15 error code.
  6. Engine Control Module - Need a replacement for your daamaged engine control module. Get it at the best price from Parts Avatar.

Symptoms Of OBD Error Code P0B15

For us our customers are everything, and that’s why we will help you to diagnose P0B15 code by mentioning some important symptoms below:


Common Symptoms


  • Blinking of the engine light as well as the warning light of the service engine.

How To Correct P0B15 Hybrid Battery Pack Voltage Sense "B" Circuit Range/Performance

After you know the symptoms of your vehicle’s problem, it becomes easy to detect it and get started with solving it. So, next on our list is a few common steps to correct this issue with your vehicle’s.


  • Replacing the damaged body control module.
  • The corroded battery cables need replacement.

Apart from this, you might need to replace other damaged parts too like body control module, battery connectors, engine control module (ECM), BCM, power control module and more. You can easily find all these parts with us. Not only that you can get these parts shipped to your door free if your cart value happens to exceed $99.

Easy Diagnosis Of Engine Error OBD Code P0B15

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


  • The P0B15 diagnostic trouble code is not very difficult to diagnose or carry out
  • If this error code appears in your vehicle it is always best to have a qualified technician or mechanic to look at this error code, where he will use a scanner to find out the problem.
  • With the help of a scanner, the mechanic will recover every of the stored codes and freeze frame data by connecting it to the diagnostic port of the vehicle.
  • Initially, the mechanic will begin by checking the hybrid battery pack and hybrid battery pack current sensor as it can cause issues in your vehicle. Also, they can be one of the reason if the error code is stored in the vehicle.
  • After this, the mechanic will look after the components like battery cables, battery control module, battery current sensor, for any damages and defects. Necessary repairs will be carried out if they are defective.
  • Finally, the engine control module will be inspected for any damages. Once every diagnosis and repairs are properly done, it is very important to retest the code and test drive the vehicle to see if the error codes, still appear and if the engine light keeps blinking.


Common Mistakes When Diagnosing The P0B15 Code


The technician may go about searching for the issue in the wrong car part while diagnosing the P0B15 error, whereas the issue may be with the battery contactor assembly and battery energy control module which might be faulty and needs replacement.

Other Diagnostic Codes Related To OBD Code P0B15

P0B14 - Hybrid Battery Pack Voltage Sense "B" Circuit

P0B16 - Hybrid Battery Pack Voltage Sense "B" Circuit Low

P0B17 - Hybrid Battery Pack Voltage Sense "B" Circuit High

P0B18 - Hybrid Battery Pack Voltage Sense "B" Circuit Intermittent/Erratic