AutoCodes – Cadillac – P0B61 Cadillac

P0B61 Cadillac Code - Hybrid/Electric Vehicle Battery 8 Circuit High Voltage

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: P0B61 Cadillac indicates Hybrid/Electric Vehicle Battery 8 Circuit High Voltage.
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 962

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 P0B61 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 P0B61 Cadillac - Hybrid/Electric Vehicle Battery 8 Circuit High Voltage - AutoCodes.com — P0B61 Cadillac Code - Hybrid/Electric Vehicle Battery 8 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B61 Cadillac?

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

How to Fix the DTC P0B61 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 P0B61 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 P0B61 Cadillac Code

1. What are the common symptoms of OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle?

- Common symptoms include reduced vehicle performance, decreased fuel efficiency, and potential issues with the hybrid/electric system.

2. What are the possible causes of OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle?

- The code P0B61 typically indicates a high voltage issue in the Hybrid/Electric Vehicle Battery 8 Circuit. Possible causes may include a faulty battery cell, damaged wiring, or a problem with the battery management system.

3. How can I diagnose OBDII code P0B61 in my Cadillac Hybrid/Electric Vehicle?

- Proper diagnosis requires advanced diagnostic equipment and expertise in handling high-voltage systems. It is recommended to seek assistance from a qualified technician or a dealership specializing in hybrid/electric vehicles.

4. Is it safe to continue driving with OBDII code P0B61 present in a Cadillac Hybrid/Electric Vehicle?

- It is not recommended to drive the vehicle with this code active, as it may lead to further damage to the hybrid/electric system. Immediate attention and repair are advised.

5. What are some repair tips for addressing OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle?

- Repairing this code often involves inspecting the high-voltage battery system, checking for loose connections, testing individual battery cells, and potentially replacing faulty components as needed.

6. Can resetting the OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle solve the issue?

- While clearing the code may temporarily remove the warning light, it will not fix the underlying problem causing the high voltage issue. Proper diagnosis and repair are necessary for a permanent solution.

7. How much does it typically cost to repair OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle?

- Repair costs can vary depending on the extent of the issue, parts needed, and labor involved. It is advisable to obtain quotes from reputable hybrid/electric vehicle specialists for an accurate estimate.

8. Will OBDII code P0B61 affect the overall reliability of a Cadillac Hybrid/Electric Vehicle?

- Ignoring or neglecting this code can potentially impact the reliability and performance of the vehicle's hybrid/electric system. Prompt attention and repair are essential to maintain the vehicle's reliability.

9. Are there any preventive measures to avoid OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle?

- Regular maintenance of the hybrid/electric system, including battery inspections and system checks, can help prevent issues leading to code P0B61. Following manufacturer recommendations is crucial.

10. How long does it take to repair OBDII code P0B61 in a Cadillac Hybrid/Electric Vehicle?

- The repair time can vary based on the specific diagnosis, availability of parts, and the complexity of the repair. Some repairs may be completed in a few hours, while others may take longer, especially if extensive troubleshooting is required.