AutoCodes – Cadillac – P0B7C Cadillac

P0B7C Cadillac Code - Hybrid/Electric Vehicle Battery 14 Circuit

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: P0B7C Cadillac indicates Hybrid/Electric Vehicle Battery 14 Circuit.
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 805

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0B7C 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 P0B7C Cadillac - Hybrid/Electric Vehicle Battery 14 Circuit - AutoCodes.com — P0B7C Cadillac Code - Hybrid/Electric Vehicle Battery 14 Circuit

What does this mean?

What are the Possible Causes of the DTC P0B7C Cadillac?

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

How to Fix the DTC P0B7C 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 P0B7C 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 P0B7C Cadillac Code

1. What does the OBDII code P0B7C for Cadillac Hybrid/Electric Vehicle Battery 14 Circuit indicate?

This code suggests a potential issue with the circuit related to the hybrid/electric vehicle battery 14 in a Cadillac.

2. What are some common symptoms of the P0B7C code in a Cadillac hybrid vehicle?

Common symptoms include the hybrid system warning light illuminating on the dashboard, reduced fuel efficiency, and potential issues with the vehicle's hybrid/electric system performance.

3. What are possible causes of the P0B7C code in a Cadillac hybrid vehicle?

Potential causes include faulty wiring or connections in the hybrid/electric vehicle battery 14 circuit, a malfunctioning battery management system, or issues with the hybrid battery itself.

4. How can I diagnose the P0B7C trouble code in my Cadillac hybrid vehicle?

Diagnosis typically involves using an OBDII scanner to retrieve the specific code, inspecting the wiring and connections in the hybrid/electric vehicle battery 14 circuit, and testing the battery management system for any faults.

5. Is it safe to continue driving my Cadillac with the P0B7C trouble code present?

It is not recommended to drive the vehicle extensively with this code as it could lead to further damage to the hybrid/electric system. It's best to have the issue diagnosed and repaired promptly.

6. Can I repair the P0B7C code in my Cadillac hybrid vehicle myself?

Repairing this code may require specialized knowledge and tools related to hybrid/electric vehicle systems. It's advisable to seek assistance from a qualified technician or dealership for proper diagnosis and repair.

7. How much does it typically cost to fix the P0B7C code in a Cadillac hybrid vehicle?

The cost of repair can vary depending on the specific cause of the issue. It's recommended to obtain a diagnostic from a professional to determine the exact repair needed and associated costs.

8. Are there any preventive maintenance tips to avoid the P0B7C trouble code in a Cadillac hybrid vehicle?

Regularly scheduled maintenance, such as checking the hybrid battery connections and ensuring the battery management system is functioning correctly, can help prevent issues leading to the P0B7C trouble code.

9. Can the P0B7C trouble code be intermittent in a Cadillac hybrid vehicle?

Yes, intermittent issues with wiring or connections in the hybrid/electric vehicle battery 14 circuit can sometimes trigger the P0B7C trouble code sporadically. It's essential to address these issues promptly to prevent further complications.

10. Will resetting the OBDII system clear the P0B7C trouble code in a Cadillac hybrid vehicle?

Resetting the system may temporarily clear the code, but if the underlying issue causing the P0B7C trouble code is not addressed, it is likely to reappear. It's crucial to diagnose and repair the root cause of the problem.