AutoCodes – GMC – P1BBD GMC

P1BBD GMC Code - Hybrid/Electric Vehicle Battery 73 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: P1BBD GMC indicates Hybrid/Electric Vehicle Battery 73 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 995

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 P1BBD 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 P1BBD GMC - Hybrid/Electric Vehicle Battery 73 Circuit Performance - AutoCodes.com — P1BBD GMC Code - Hybrid/Electric Vehicle Battery 73 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BBD GMC?

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

How to Fix the DTC P1BBD 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 P1BBD 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 P1BBD GMC Code

1. What are the common symptoms of OBDII code P1BBD GMC (Hybrid/Electric Vehicle Battery 73 Circuit Performance)?

The common symptoms include reduced hybrid/electric vehicle performance, decreased fuel efficiency, and potential issues with the battery system.

2. What are the possible causes of OBDII code P1BBD GMC?

Possible causes include a failing hybrid/electric vehicle battery, issues with the battery circuit connections, or problems with the battery management system.

3. How can I diagnose the OBDII code P1BBD GMC?

Diagnosing this code typically involves using a professional OBDII scanner to read the fault codes, conducting a visual inspection of the battery and its connections, and testing the battery's voltage and performance.

4. What are the repair options for OBDII code P1BBD GMC?

Repair options may include replacing the hybrid/electric vehicle battery, repairing or replacing faulty circuit connections, or reprogramming the battery management system.

5. Can driving with OBDII code P1BBD GMC cause further damage to the vehicle?

Continuing to drive with this code may lead to further deterioration of the hybrid/electric system, reduced vehicle performance, and potential safety risks. It's recommended to address the issue promptly.

6. How much does it typically cost to repair OBDII code P1BBD GMC?

The cost of repairing this code can vary depending on the specific issue, the extent of the damage, and whether the battery needs to be replaced. Repairs can range from a few hundred to several thousand dollars.

7. Is it safe to continue driving my vehicle with OBDII code P1BBD GMC?

It is not recommended to drive the vehicle with this code present, as it can lead to potential safety hazards and further damage to the hybrid/electric system. It's best to address the issue as soon as possible.

8. Can I reset the OBDII code P1BBD GMC on my own?

While you can clear the fault code with an OBDII scanner, it's important to address the underlying issue causing the code to prevent it from reoccurring. Simply clearing the code without fixing the problem may lead to further issues.

9. How often does OBDII code P1BBD GMC occur in hybrid/electric vehicles?

This particular code may not be as common as some other OBDII codes, but it can still occur in hybrid/electric vehicles experiencing issues with the battery system or related circuits.

10. Are there any preventative maintenance tips to avoid OBDII code P1BBD GMC?

Regularly inspecting the hybrid/electric vehicle battery, ensuring proper connections, and following the manufacturer's maintenance recommendations can help prevent issues that may trigger this code.