AutoCodes – Buick – P1B80 Buick

P1B80 Buick Code - Hybrid/Electric Vehicle Battery 52 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: P1B80 Buick indicates Hybrid/Electric Vehicle Battery 52 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 849

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 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B80 Buick 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 P1B80 Buick - Hybrid/Electric Vehicle Battery 52 Circuit High Voltage - AutoCodes.com — P1B80 Buick Code - Hybrid/Electric Vehicle Battery 52 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B80 Buick?

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

How to Fix the DTC P1B80 Buick?

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 P1B80 Buick 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 P1B80 Buick Code

1. What are the common symptoms of OBDII code P1B80 in a Buick Hybrid/Electric Vehicle?

- Common symptoms include reduced fuel efficiency, loss of power, and the vehicle entering a reduced power mode.

2. What could cause the OBDII code P1B80 in a Buick Hybrid/Electric Vehicle?

- The code P1B80 typically indicates a high voltage issue in the hybrid/electric vehicle battery 52 circuit, which could be caused by a faulty battery pack, damaged wiring, or a malfunctioning battery management system.

3. How serious is the OBDII code P1B80 in a Buick Hybrid/Electric Vehicle?

- This code should be taken seriously as it can impact the performance and efficiency of the vehicle. It is recommended to address the issue promptly to prevent further damage.

4. Can I continue driving my Buick Hybrid/Electric Vehicle with the OBDII code P1B80?

- 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. It's best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the OBDII code P1B80 in my Buick Hybrid/Electric Vehicle?

- Diagnosing this code requires specialized equipment and knowledge of hybrid/electric vehicle systems. It is recommended to take the vehicle to a qualified technician or dealership for proper diagnosis.

6. Is it safe to attempt repairs on the hybrid/electric vehicle battery system related to code P1B80?

- Due to the high voltage nature of hybrid/electric vehicle battery systems, it is not safe for untrained individuals to attempt repairs. Always seek professional assistance when dealing with such systems.

7. How much does it typically cost to repair the OBDII code P1B80 in a Buick Hybrid/Electric Vehicle?

- The cost of repair can vary depending on the exact cause of the issue. It is advisable to get a diagnostic assessment from a qualified technician to determine the specific repair cost.

8. Are there any maintenance tips to prevent the OBDII code P1B80 in a Buick Hybrid/Electric Vehicle?

- Regular maintenance of the hybrid/electric vehicle system, including battery checks and software updates, can help prevent issues like code P1B80. Follow the manufacturer's recommended maintenance schedule.

9. Can the OBDII code P1B80 be triggered by a simple battery issue?

- While a simple battery issue can sometimes trigger this code, it is more commonly associated with problems in the hybrid/electric vehicle battery system itself, such as high voltage circuit malfunctions.

10. Will resetting the OBDII code P1B80 in a Buick Hybrid/Electric Vehicle make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the problem.