AutoCodes – GMC – P1BDA GMC

P1BDA GMC Code - Hybrid/Electric Vehicle Battery 82 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: P1BDA GMC indicates Hybrid/Electric Vehicle Battery 82 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 749

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 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1BDA 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 P1BDA GMC - Hybrid/Electric Vehicle Battery 82 Circuit High Voltage - AutoCodes.com — P1BDA GMC Code - Hybrid/Electric Vehicle Battery 82 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BDA GMC?

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

How to Fix the DTC P1BDA 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 P1BDA 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 P1BDA GMC Code

1. What are the common symptoms of OBDII code P1BDA GMC related to the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage?

- Common symptoms include check engine light illumination, reduced hybrid/electric vehicle performance, and potential issues with battery charging.

2. What are the possible causes of the OBDII code P1BDA GMC indicating Hybrid/Electric Vehicle Battery 82 Circuit High Voltage?

- The code can be triggered by issues such as a faulty high-voltage battery pack, damaged wiring or connectors, or problems with the battery management system.

3. How can I diagnose the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage issue related to code P1BDA GMC?

- Diagnosing this issue requires specialized diagnostic equipment that can read hybrid/electric vehicle system codes and perform voltage tests on the battery and associated components.

4. Is it safe to continue driving my vehicle with the OBDII code P1BDA GMC for Hybrid/Electric Vehicle Battery 82 Circuit High Voltage?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the high-voltage battery system and potentially pose safety risks.

5. Can I repair the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage issue myself?

- Due to the complex nature of hybrid/electric vehicle systems, it is recommended to have this issue diagnosed and repaired by a qualified technician with experience in working on hybrid/electric vehicles.

6. How much does it typically cost to repair the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage issue associated with code P1BDA GMC?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing damaged components, repairing wiring, or recalibrating the battery management system, potentially ranging from hundreds to thousands of dollars.

7. What steps can I take to prevent the recurrence of the OBDII code P1BDA GMC for Hybrid/Electric Vehicle Battery 82 Circuit High Voltage?

- Regular maintenance of the high-voltage battery system, including checking for loose connections, ensuring proper cooling system operation, and following manufacturer recommendations, can help prevent this issue from reoccurring.

8. How long does it typically take to repair the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage issue once diagnosed?

- The repair time can vary depending on the extent of the issue and the availability of replacement parts, but it may take several hours to a few days to complete the repair.

9. Will resetting the OBDII code P1BDA GMC for Hybrid/Electric Vehicle Battery 82 Circuit High Voltage make the issue go away?

- While resetting the code may temporarily turn off the check engine light, it will not fix the underlying issue causing the code to appear. It is essential to diagnose and repair the root cause of the problem.

10. Is the OBDII code P1BDA GMC related to the Hybrid/Electric Vehicle Battery 82 Circuit High Voltage a common issue in GMC hybrid/electric vehicles?

- While the code may not be as common as some other OBDII codes, issues related to high-voltage battery circuits can occur in GMC and other hybrid/electric vehicles, requiring proper diagnosis and repair.