AutoCodes – GMC – P1BBA GMC

P1BBA GMC Code - Hybrid/Electric Vehicle Battery 72 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: P1BBA GMC indicates Hybrid/Electric Vehicle Battery 72 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 742

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 P1BBA GMC 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 P1BBA GMC - Hybrid/Electric Vehicle Battery 72 Circuit Performance - AutoCodes.com — P1BBA GMC Code - Hybrid/Electric Vehicle Battery 72 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BBA GMC?

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

How to Fix the DTC P1BBA GMC?

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 P1BBA GMC 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 P1BBA GMC Code

1. What are common symptoms of OBDII code P1BBA GMC related to Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and potential dashboard warning lights.

2. What are the possible causes of OBDII code P1BBA GMC indicating Hybrid/Electric Vehicle Battery 72 Circuit Performance issues?

- Possible causes include faulty battery management system sensors, damaged battery cells, wiring issues, or software malfunctions.

3. How can I diagnose the source of OBDII code P1BBA GMC for Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking the battery system components for damage or malfunction, and conducting a thorough inspection of wiring connections.

4. Can I continue driving my vehicle with OBDII code P1BBA GMC related to Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- 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 potential safety risks.

5. What are some repair tips for addressing OBDII code P1BBA GMC concerning Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Repair tips may include checking and repairing damaged wiring, replacing faulty sensors or battery cells, updating software if necessary, and resetting the system to clear the code.

6. Is it possible to reset OBDII code P1BBA GMC related to Hybrid/Electric Vehicle Battery 72 Circuit Performance without addressing the underlying issue?

- While you can clear the code temporarily by resetting the system, it is crucial to address the underlying issue to prevent further problems and ensure proper functioning of the hybrid/electric system.

7. Can a DIY enthusiast attempt to fix OBDII code P1BBA GMC concerning Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Due to the complexity of hybrid/electric vehicle systems, it is recommended to seek professional help or consult with a qualified technician for diagnosing and repairing this code.

8. How much does it typically cost to repair OBDII code P1BBA GMC for Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Repair costs can vary depending on the extent of the issue, parts needed for replacement, and labor charges. It is advisable to obtain estimates from reputable auto repair shops.

9. Are there any preventive measures to avoid OBDII code P1BBA GMC related to Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Regular maintenance of the hybrid/electric vehicle system, including battery checks and software updates, can help prevent issues leading to this code.

10. Can extreme weather conditions affect the occurrence of OBDII code P1BBA GMC concerning Hybrid/Electric Vehicle Battery 72 Circuit Performance?

- Yes, extreme temperatures or weather conditions can impact the performance of the battery system, potentially triggering this code. It is important to take precautions in such situations.