AutoCodes – GMC – P1BDC GMC

P1BDC GMC Code - Hybrid/Electric Vehicle Battery 83 Circuit Low 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: P1BDC GMC indicates Hybrid/Electric Vehicle Battery 83 Circuit Low 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 869

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 P1BDC 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 P1BDC GMC - Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage - AutoCodes.com — P1BDC GMC Code - Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BDC GMC?

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

How to Fix the DTC P1BDC 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 P1BDC 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 P1BDC GMC Code

1. What are common symptoms of OBDII code P1BDC GMC indicating Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Common symptoms include reduced hybrid/electric vehicle performance, poor fuel efficiency, and potential warning lights on the dashboard.

2. What are the possible causes of OBDII code P1BDC GMC related to Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Possible causes include a weak or failing hybrid/electric vehicle battery, issues with the battery management system, loose or corroded battery connections, or a faulty battery sensor.

3. How can I diagnose the OBDII code P1BDC GMC for Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Diagnosis typically involves using a diagnostic scanner to read the code, inspecting the hybrid/electric vehicle battery and its connections, and testing the battery's voltage and health.

4. What are the repair options for fixing OBDII code P1BDC GMC associated with Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Repair options may include replacing the hybrid/electric vehicle battery, repairing or replacing damaged wiring or connections, resetting the battery management system, or recalibrating the battery sensor.

5. Can I drive my vehicle with the OBDII code P1BDC GMC for Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the hybrid/electric system and result in poor performance or potential safety hazards.

6. How urgent is it to address the OBDII code P1BDC GMC for Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- It is important to address this code promptly to prevent further damage to the hybrid/electric system and ensure optimal performance and fuel efficiency of the vehicle.

7. Are there any preventive measures to avoid OBDII code P1BDC GMC related to Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Regularly maintaining and servicing the hybrid/electric vehicle battery, checking connections for tightness and corrosion, and following manufacturer recommendations can help prevent this code from occurring.

8. Can extreme weather conditions affect the likelihood of triggering OBDII code P1BDC GMC for Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Yes, extreme temperatures can impact the performance and health of the hybrid/electric vehicle battery, potentially leading to low voltage issues and triggering this diagnostic trouble code.

9. Will resetting the OBDII code P1BDC GMC resolve the issue with Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Resetting the code may clear the warning light temporarily, but it will not fix the underlying issue causing the low voltage in the hybrid/electric vehicle battery.

10. Is it recommended to seek professional help for diagnosing and repairing OBDII code P1BDC GMC related to Hybrid/Electric Vehicle Battery 83 Circuit Low Voltage?

- Yes, it is recommended to consult a qualified mechanic or dealership specializing in hybrid/electric vehicles to accurately diagnose and repair the issue associated with this code.