AutoCodes – GMC – P1BDD GMC

P1BDD GMC Code - Hybrid/Electric Vehicle Battery 83 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: P1BDD GMC indicates Hybrid/Electric Vehicle Battery 83 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 843

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 P1BDD 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 P1BDD GMC - Hybrid/Electric Vehicle Battery 83 Circuit High Voltage - AutoCodes.com — P1BDD GMC Code - Hybrid/Electric Vehicle Battery 83 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BDD GMC?

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

How to Fix the DTC P1BDD 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 P1BDD 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 P1BDD GMC Code

1. What are the common symptoms of OBDII code P1BDD GMC related to the Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- Common symptoms include decreased fuel efficiency, reduced power output, and potential issues with starting the vehicle.

2. What are the possible causes of OBDII code P1BDD GMC indicating Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- Potential causes include a malfunctioning battery management system, faulty high voltage circuit components, or issues with the hybrid/electric vehicle battery itself.

3. How can I diagnose OBDII code P1BDD GMC associated with Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- Diagnosis typically involves using a scan tool to retrieve the code, inspecting high voltage circuit components, and testing the battery management system for faults.

4. Is it safe to continue driving with OBDII code P1BDD GMC related to Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- It is not recommended to continue driving with this code as it can lead to further damage to the battery system and potentially unsafe driving conditions.

5. Can I repair OBDII code P1BDD GMC myself if it indicates issues with Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- Repairing this code often requires specialized knowledge and tools related to hybrid/electric vehicle systems, so it is recommended to seek professional assistance for proper diagnosis and repair.

6. How much does it typically cost to repair OBDII code P1BDD GMC associated with Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- Repair costs can vary significantly depending on the exact cause of the issue, but it is advisable to budget for potentially expensive repairs due to the complexity of hybrid/electric vehicle systems.

7. Can OBDII code P1BDD GMC indicating Hybrid/Electric Vehicle Battery 83 Circuit High Voltage be a false alarm?

- While false alarms are possible, it is crucial to address this code promptly to avoid any potential safety hazards or further damage to the vehicle's battery system.

8. Are there any preventive maintenance tips to avoid encountering OBDII code P1BDD GMC related to Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- Regularly inspecting the high voltage circuit components, following manufacturer-recommended maintenance schedules, and avoiding overcharging the battery can help prevent issues leading to this code.

9. How long does it take to repair OBDII code P1BDD GMC linked to Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- The repair time can vary depending on the complexity of the issue, availability of parts, and the expertise of the technician, so it is best to consult with a professional for an accurate estimate.

10. Can resetting the OBDII system clear OBDII code P1BDD GMC associated with Hybrid/Electric Vehicle Battery 83 Circuit High Voltage?

- While resetting the system can temporarily clear the code, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.