The automobile fault code P0B7B indicates a problem with the battery smart unit or the HV battery assembly. The most common symptom is the engine light being illuminated or the service engine soon warning light appearing. To fix this issue, start by visually inspecting the wiring harness and connectors related to the fault code.

Look for any damaged components and check 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 p0b7b fault code.

  • The symptoms of the automobile fault code p0b7b include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0b7b can be caused by a faulty Battery smart unit or a faulty HV battery assembly.

  • The fault code p0b7b can be caused by a faulty Battery smart unit or a faulty HV battery assembly.

To fix the automobile fault code p0b7b, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0b7b, 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 connector pins.
  • This fix is estimated to take approximately 1.0 hour.

The automobile fault code P0B7B can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of the repair is typically based on the repair time, with most auto repair shops charging between $75 and $150 per hour.

The P0B7B fault code refers to the Hybrid Battery Voltage Sense ‘M’ Circuit IntermittentErra. This code is related to the HV battery in hybrid vehicles that use nickel metal-hydride batteries. The HV battery does not require external charging and is controlled by the power management control ECU to maintain a constant state of charge (SOC) during driving. The HV battery is made up of 28 modules, with each module consisting of eight 1.2 V cells in series.

The battery smart unit monitors the voltage of the battery blocks at 14 locations.

Each battery block is composed of 2 modules. If the voltage difference between the battery blocks exceeds the standard, the battery smart unit detects a malfunction. When the malfunction detection condition is met, the power management control ECU (HV CPU) will illuminate the Malfunction Indicator Lamp (MIL) and set the P0B7B Diagnostic Trouble Code (DTC).

This code indicates an intermittent or error in the Hybrid Battery Voltage Sense ‘M’ Circuit.

It is important to address this issue promptly to ensure the proper functioning of the HV battery in the hybrid vehicle.

What are the possible causes for the automobile fault code P0B7B?

If you see the engine light or service engine soon warning light on, the fault code P0B7B could be the culprit. This code is often caused by a faulty battery smart unit or a faulty HV battery assembly. 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 resolve the problem.

How can I visually inspect the wiring harness and connectors to fix the fault code P0B7B?

If you’re dealing with the fault code P0B7B and your engine light is on, it’s time to take action. The possible causes could be a faulty battery smart unit or a faulty HV battery assembly. To fix this issue, start by visually inspecting the wiring harness and connectors. Look out for any damaged components and check for broken, bent, pushed out, or corroded connector pins. This step is crucial in identifying and resolving the problem.

What should I look for when checking for damaged components and connector’s pins to resolve the fault code P0B7B?

When resolving the fault code P0B7B, start by checking for damaged components and connector’s pins. Visually inspect the related wiring harness and connectors, looking for any broken, bent, pushed out, or corroded pins. This can help identify any issues with the battery smart unit or the HV battery assembly, which are common causes of this fault code. By thoroughly examining these components and connectors, you can take the necessary steps to fix the problem and turn off the engine light or service engine soon warning light.

p0b7b error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty Battery smart unit or a faulty HV battery assembly. To fix this issue, visually inspect the wiring harness and connectors for any damage.

Also, check for broken, bent, pushed out, or corroded connector pins.

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