AutoCodes – Cadillac – P0B47 Cadillac

P0B47 Cadillac Code - Hybrid/Electric Vehicle Battery 3 Circuit Performance

Quick Answer

The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0B47 Cadillac indicates Hybrid/Electric Vehicle Battery 3 Circuit Performance.
Common causes: Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 966

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B47 Cadillac Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P0B47 Cadillac - Hybrid/Electric Vehicle Battery 3 Circuit Performance - AutoCodes.com — P0B47 Cadillac Code - Hybrid/Electric Vehicle Battery 3 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0B47 Cadillac?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P0B47 Cadillac?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0B47 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0B47 Cadillac Code

1. What are the common symptoms of OBDII code P0B47 in a Cadillac hybrid/electric vehicle?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential warning lights on the dashboard.

2. What are the possible causes of OBDII code P0B47 in a Cadillac hybrid/electric vehicle?

- The code P0B47 usually indicates a fault in Hybrid/Electric Vehicle Battery 3 Circuit Performance, which can be caused by issues such as battery cell degradation, faulty battery modules, or wiring issues.

3. How can I diagnose OBDII code P0B47 in my Cadillac hybrid/electric vehicle?

- Diagnosis typically involves using a scan tool to read the code, inspecting the hybrid battery system for any visible damage or loose connections, and conducting voltage tests on the battery modules.

4. Is it safe to continue driving my Cadillac with OBDII code P0B47 present?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the hybrid/electric system and potentially cause a safety hazard.

5. How can I reset OBDII code P0B47 in my Cadillac hybrid/electric vehicle?

- Resetting the code typically involves using a scan tool to clear the code after addressing the underlying issue causing the fault in the Hybrid/Electric Vehicle Battery 3 Circuit Performance.

6. Can I repair OBDII code P0B47 in my Cadillac hybrid/electric vehicle myself?

- While some basic troubleshooting steps can be taken, diagnosing and repairing issues related to the hybrid/electric system, especially the battery, may require specialized knowledge and tools best handled by a professional technician.

7. What are the potential repair options for OBDII code P0B47 in a Cadillac hybrid/electric vehicle?

- Repair options may include replacing faulty battery modules, repairing damaged wiring, or even replacing the entire hybrid battery pack, depending on the severity of the issue.

8. How much does it cost to repair OBDII code P0B47 in a Cadillac hybrid/electric vehicle?

- Repair costs can vary significantly depending on the specific issue causing the code, the extent of the repair needed, and whether new parts are required. It is advisable to consult a professional for an accurate cost estimate.

9. Can OBDII code P0B47 be a recurring issue in a Cadillac hybrid/electric vehicle?

- Yes, if the underlying problem causing the code is not properly addressed, it can recur and potentially lead to further complications with the hybrid/electric system.

10. Are there any preventative maintenance tips to avoid OBDII code P0B47 in a Cadillac hybrid/electric vehicle?

- Regularly inspecting the hybrid battery system, following the manufacturer's maintenance schedule, and avoiding extreme temperature conditions can help prevent issues that may trigger OBDII code P0B47.