AutoCodes – GMC – P1BD2 GMC

P1BD2 GMC Code - Hybrid/Electric Vehicle Battery 80 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: P1BD2 GMC indicates Hybrid/Electric Vehicle Battery 80 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 853

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 P1BD2 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 P1BD2 GMC - Hybrid/Electric Vehicle Battery 80 Circuit Performance - AutoCodes.com — P1BD2 GMC Code - Hybrid/Electric Vehicle Battery 80 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BD2 GMC?

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

How to Fix the DTC P1BD2 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 P1BD2 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 P1BD2 GMC Code

1. What are the common symptoms of OBDII code P1BD2 in a GMC Hybrid/Electric Vehicle?

- Common symptoms include reduced hybrid battery performance, decreased fuel efficiency, and potential difficulty starting the vehicle.

2. What could cause the OBDII code P1BD2 to trigger in a GMC Hybrid/Electric Vehicle?

- The code P1BD2 may indicate issues such as a faulty hybrid/electric vehicle battery 80 circuit, aging or damaged battery components, or problems with the battery management system.

3. How can I diagnose the OBDII code P1BD2 related to the Hybrid/Electric Vehicle Battery 80 Circuit in my GMC?

- Diagnosis typically involves using a professional OBDII scanner to read the code, inspecting the hybrid battery and its connections, and testing the battery's voltage and performance.

4. Are there any DIY repair tips for addressing the OBDII code P1BD2 in a GMC Hybrid/Electric Vehicle?

- DIY repair may include checking and cleaning the battery terminals, inspecting for loose connections, and ensuring proper battery cooling and ventilation.

5. Can driving with the OBDII code P1BD2 present cause further damage to the vehicle?

- Continuing to drive with the code P1BD2 may lead to reduced hybrid system efficiency, potential damage to other components, and overall decreased performance.

6. Is it safe to reset the OBDII code P1BD2 in a GMC Hybrid/Electric Vehicle without addressing the underlying issue?

- It is not recommended to simply reset the code without diagnosing and resolving the root cause, as the problem may persist and potentially worsen over time.

7. What are the typical repair options for fixing the OBDII code P1BD2 related to the Hybrid/Electric Vehicle Battery 80 Circuit in a GMC?

- Repair options may include replacing damaged battery components, repairing faulty connections, recalibrating the battery management system, or in some cases, replacing the hybrid battery.

8. How can regular maintenance help prevent the occurrence of the OBDII code P1BD2 in a GMC Hybrid/Electric Vehicle?

- Regular maintenance such as monitoring battery health, ensuring proper cooling, and following manufacturer-recommended service intervals can help prevent issues that may trigger the code P1BD2.

9. Can extreme weather conditions impact the occurrence of the OBDII code P1BD2 in a GMC Hybrid/Electric Vehicle?

- Yes, extreme temperatures, both hot and cold, can affect the performance and health of the hybrid/electric vehicle battery, potentially leading to issues that trigger the code P1BD2.

10. Is it advisable to seek professional assistance for diagnosing and repairing the OBDII code P1BD2 in a GMC Hybrid/Electric Vehicle?

- Yes, due to the complexity of hybrid/electric vehicle systems and the safety considerations involved, it is recommended to consult a qualified technician for proper diagnosis and repair of the code P1BD2.