The automobile fault code P0BB4 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 prevent further damage to the vehicle’s battery system.

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 p0bb4 fault code.

  • The symptoms of the automobile fault code p0bb4 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0bb4 can be caused by a faulty HybridElectric Vehicle Battery Pack or a faulty HybridElectric Vehicle Battery Interface Control Module.

  • The fault code p0bb4 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 p0bb4, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0bb4, 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 if there are any broken, bent, pushed out, or corroded pins in the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The automobile fault code p0bb4 diagnosis and fixing cost is influenced by the estimated repair time of 1.0 hour.

Auto repair shops typically charge between $75 and $150 per hour for their services.

The P0BB4 fault code refers to a performance issue in the circuit of the 25th battery in a hybridelectric vehicle. The hybridEV 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 nominal system voltage is 355V DC. The battery cells are divided into three sections.

Section one has 90 cells (30 cell groups), section two has 72 cells (24 cell groups), and section three has 126 cells (42 cell groups).

Each section contains specific batteries within a range. The battery energy control module monitors the voltage of the 96 cell groups through hybridEV battery interface control modules.

Voltage sense circuits are attached to each cell group, and the readings are transmitted to the battery energy control module. If a fault condition is detected, the battery energy control module communicates this information to the hybridEV powertrain control module 2 through serial data. The powertrain control module 2 is responsible for diagnostic trouble code information. In the case of the P0BB4 code, it indicates a performance issue in the circuit of the 25th battery in the hybridEV vehicle. This fault needs to be diagnosed and addressed to ensure proper functioning of the battery system.

What are the possible causes for the automobile fault code P0BB4?

If you see the engine light on or the service engine soon warning light, the fault code P0BB4 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 a more comprehensive solution.

How can I visually inspect the wiring harness and connectors to fix the P0BB4 fault code?

If you’re dealing with the P0BB4 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. This simple step can help you identify and resolve the issue. Don’t delay, get to the bottom of it now!

What should I look for when checking for damaged components and connector pins to resolve the P0BB4 fault code?

When resolving the P0BB4 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.

p0bb4 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the p0bb4 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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