The automobile fault code P0B74 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 p0b74 fault code.

  • The symptoms of the automobile fault code p0b74 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0b74 can be caused by a faulty HybridElectric Vehicle Battery Pack or a faulty HybridElectric Vehicle Battery Interface Control Module.

  • The fault code p0b74 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 p0b74, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0b74, 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 p0b74 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 P0B74 fault code refers to a low voltage condition in the HybridElectric Vehicle battery 12 circuit. 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 is divided into three sections: section one with 90 cells, section two with 72 cells, and section three with 126 cells.

Each section is individually serviceable. The battery energy control module monitors the voltage of the cell groups through hybridEV battery interface control modules.

These modules encode and transmit the voltage readings to the battery energy control module. When a fault condition is detected, the battery energy control module communicates this information to the hybridEV powertrain control module 2, which acts as the diagnostic trouble code host controller. In summary, the P0B74 fault code indicates a low voltage issue in the HybridElectric Vehicle battery 12 circuit, which is monitored and diagnosed by the battery energy control module and communicated to the powertrain control module for further action.

What are the possible causes for the automobile fault code P0B74?

If you see the engine light or service engine soon warning light on, the fault code P0B74 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 P0B74 fault code?

If you’re dealing with the P0B74 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 P0B74 fault code?

When resolving the P0B74 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. These issues can cause the Engine Light or Service Engine Soon Warning Light to turn on. By checking for these specific problems, you can identify and resolve the cause of the fault code.

p0b74 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the p0b74 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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