[SOLVED] P0B84 Code: High Voltage In Hybrid/Electric Vehicle Battery Circuit – Fix Now!

The automobile fault code P0B84 indicates a problem with the HybridElectric Vehicle Battery Pack or the HybridElectric Vehicle Battery Interface Control Module.

The most common symptom is the Engine Light being ON 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)

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be a sign of the p0b84 fault code.

  • The symptoms of the automobile fault code p0b84 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0b84 can be caused by a faulty HybridElectric Vehicle Battery Pack or a faulty HybridElectric Vehicle Battery Interface Control Module.

  • The fault code p0b84 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 p0b84, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0b84, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded pins on the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p0b84 are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges from $75 to $150.

The P0B84 fault code refers to a high voltage issue in the HybridElectric Vehicle battery circuit 15. The battery pack in these vehicles 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 3.7 V.

The nominal system voltage is 355 V DC.

The battery cells are divided into three sections. Section one contains 90 cells (30 cell groups) located adjacent to the cowl, batteries 67 to 96.

Section two is behind section one and consists of 72 cells (24 cell groups), batteries 43 to 66. Section three, the transverse battery section, has the remaining 126 cells (42 cell groups), batteries 1 to 42. The battery energy control module monitors the voltage of the cell groups through hybridEV battery interface control modules.

These modules encode the voltage readings and transmit them to the battery energy control module.

The battery energy control module communicates diagnostics and system status to the hybridEV powertrain control module 2, which is responsible for trouble code information. If the P0B84 fault code is triggered, it indicates a high voltage problem in circuit 15 of the HybridElectric Vehicle battery.

This fault should be diagnosed and addressed promptly to ensure the proper functioning of the vehicle.

What are the possible causes for the automobile fault code p0b84?

If you see the engine light or service engine soon warning light on, the fault code P0B84 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. It’s important to address these possible causes to get your automobile back on track.

How can I visually inspect the wiring harness and connectors to fix the p0b84 fault code?

If you’re dealing with the p0b84 fault code and your engine light is on, it’s time to take action. The most common causes for this code are a faulty hybrid/electric vehicle battery pack or a faulty hybrid/electric vehicle battery interface control module. To fix it, 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 delay, get to the bottom of this issue and get your engine running smoothly again.

What should I look for when checking for damaged components and connector pins to resolve the p0b84 fault code?

When resolving the p0b84 fault code, start by checking for damaged components and connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded connector pins. By identifying and addressing these issues, you can effectively resolve the fault code and prevent further complications.

p0b84 error fault code explained

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to 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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