AutoCodes – GMC – P0BAF GMC

P0BAF GMC Code - Hybrid/Electric Vehicle Battery 24 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: P0BAF GMC indicates Hybrid/Electric Vehicle Battery 24 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 1,101

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 P0BAF 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 P0BAF GMC - Hybrid/Electric Vehicle Battery 24 Circuit Performance - AutoCodes.com — P0BAF GMC Code - Hybrid/Electric Vehicle Battery 24 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P0BAF GMC?

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

How to Fix the DTC P0BAF 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 P0BAF 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 P0BAF GMC Code

1. What are the common symptoms of OBDII code P0BAF GMC related to Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- 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 P0BAF GMC indicating Hybrid/Electric Vehicle Battery 24 Circuit Performance issues?

- Potential causes may include faulty battery modules, damaged wiring or connections, software glitches, or issues with the hybrid system control module.

3. How serious is OBDII code P0BAF GMC for Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- This code should be addressed promptly as it can affect the overall performance and efficiency of the hybrid/electric vehicle, leading to potential further damage if left unresolved.

4. Can I continue driving my vehicle with OBDII code P0BAF GMC related to Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid system and decrease overall vehicle efficiency.

5. How can I diagnose and repair OBDII code P0BAF GMC for Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- Diagnosis typically involves using a scan tool to read the code and inspecting the battery modules, wiring, and connections. Repair may involve replacing faulty components, repairing wiring, or updating software.

6. Is it possible to reset OBDII code P0BAF GMC for Hybrid/Electric Vehicle Battery 24 Circuit Performance without repairing the issue?

- While clearing the code may temporarily turn off the warning light, the underlying issue causing the code will persist and should be addressed to prevent further problems.

7. Are there any DIY tips for troubleshooting OBDII code P0BAF GMC related to Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- DIY tips may include checking battery connections, inspecting wiring for damage, ensuring the battery modules are secure, and performing a visual inspection for any obvious issues.

8. Can a professional mechanic help diagnose and repair OBDII code P0BAF GMC for Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- Yes, a professional mechanic with experience in hybrid/electric vehicles can use specialized tools and knowledge to accurately diagnose and repair the issue causing the code.

9. How much does it cost to fix OBDII code P0BAF GMC associated with Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- The cost of repair can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed. It is recommended to obtain quotes from different mechanics.

10. Are there any recalls or technical service bulletins related to OBDII code P0BAF GMC Hybrid/Electric Vehicle Battery 24 Circuit Performance?

- It's advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical bulletins related to this specific OBDII code to see if there are any known issues or fixes available.