The automobile fault code P0B81 indicates a problem with the hybridelectric vehicle battery pack or the battery interface control module. The most common symptom is the engine light being illuminated or the service engine soon warning light. To fix this issue, you should visually inspect the wiring harness and connectors for any damage.

Look out for broken, bent, pushed out, or corroded connector pins. The repair time for this fault code is estimated to be around 1.0. It is important to address this issue promptly to ensure the proper functioning of your vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p0b81 fault code.

  • The symptoms of the automobile fault code p0b81 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0b81 can be caused by a faulty HybridElectric Vehicle Battery Pack or a faulty HybridElectric Vehicle Battery Interface Control Module.

  • The fault code p0b81 can be caused by a faulty Hybrid/Electric Vehicle Battery Pack or a faulty Hybrid/Electric Vehicle Battery Interface Control Module.

To fix the automobile fault code p0b81, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0b81, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors for any damage.
  • Look for broken, bent, pushed out, or corroded pins in the connectors.
  • This fix should take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p0b81 are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P0B81 fault code refers to a circuit issue in the HybridElectric Vehicle battery. The battery pack consists of 288 cells, grouped in parallel sets of three. There are a total of 96 cell groups connected in series, with each group rated at 3.7V.

The battery cells are divided into three sections: section one has 90 cells, section two has 72 cells, and section three has 126 cells. Each section is individually serviceable.

The battery energy control module monitors the voltage of the cell groups through interface control modules. These modules encode the voltage readings and transmit them to the control module. When a fault condition is detected, the battery energy control module communicates it to the powertrain control module, which is responsible for diagnostic trouble code information.

The P0B81 fault code specifically indicates a circuit issue in the HybridElectric Vehicle battery, specifically related to Battery 15.

What are the possible causes for the automobile fault code P0B81?

If you see the engine light on or the service engine soon warning light, the fault code P0B81 could be the culprit. This code is often caused by a faulty hybrid/electric vehicle battery pack or a faulty hybrid/electric vehicle battery interface control module. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. Don’t forget to check the possible causes listed above for further troubleshooting.

How can I visually inspect the wiring harness and connectors to fix the P0B81 fault code?

If you’re dealing with the P0B81 fault code and your engine light is on, it’s time to visually inspect the wiring harness and connectors. This code is often caused by a faulty hybrid/electric vehicle battery pack or a faulty battery interface control module. To fix it, check the possible causes mentioned earlier and carefully examine the wiring harness and connectors. Look for any signs of damage, such as broken, bent, pushed out, or corroded pins on the connectors. This visual inspection can help you identify and resolve the issue.

What should I look for when checking for damaged components and connector pins to resolve the P0B81 fault code?

When resolving the P0B81 fault code, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This can help identify any issues with the Hybrid/Electric Vehicle Battery Pack or the Hybrid/Electric Vehicle Battery Interface Control Module, which are common causes of this fault code. Don’t forget to check the “Possible Causes” listed above for further troubleshooting.

p0b81 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the p0b81 fault code might be the culprit.

This code is usually caused by a faulty HybridElectric Vehicle Battery Pack or a faulty HybridElectric Vehicle Battery Interface Control Module. To fix it, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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