AutoCodes – GMC – P1B24 GMC

P1B24 GMC Code - Hybrid/Electric Vehicle Battery 31 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: P1B24 GMC indicates Hybrid/Electric Vehicle Battery 31 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 818

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 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1B24 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 P1B24 GMC - Hybrid/Electric Vehicle Battery 31 Circuit High Voltage - AutoCodes.com — P1B24 GMC Code - Hybrid/Electric Vehicle Battery 31 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B24 GMC?

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

How to Fix the DTC P1B24 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 P1B24 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 P1B24 GMC Code

1. What are the common symptoms of OBDII code P1B24 GMC related to the Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

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

2. What are the possible causes of OBDII code P1B24 GMC indicating Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- Possible causes may include a malfunctioning battery control module, high voltage interlock circuit issues, or wiring problems in the battery circuit.

3. How can I diagnose OBDII code P1B24 GMC for Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- Diagnosis typically involves using a scan tool to read the code, checking the high voltage system for any visible damage or loose connections, and performing voltage tests on the battery circuit components.

4. Is it safe to drive with OBDII code P1B24 GMC related to Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- It is not recommended to drive the vehicle with this code present, as it may lead to further damage to the high voltage system or compromise the performance of the hybrid system.

5. How can I reset OBDII code P1B24 GMC for Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- The code can be reset using a diagnostic scan tool capable of clearing codes, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

6. Can I repair OBDII code P1B24 GMC myself for Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- Repairing this code often requires specialized knowledge and tools related to hybrid/electric vehicle systems, so it is recommended to seek assistance from a qualified technician or dealership.

7. What are some tips for preventing OBDII code P1B24 GMC associated with Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- Regular maintenance of the high voltage system, avoiding overcharging the battery, and promptly addressing any warning signs can help prevent this code from appearing.

8. How much does it typically cost to repair OBDII code P1B24 GMC for Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing components in the high voltage system, which can be a significant expense.

9. Are there any recalls or technical service bulletins related to OBDII code P1B24 GMC for Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- It is recommended to check with the manufacturer or authorized service centers for any recalls or technical bulletins related to this specific OBDII code to see if any relevant information is available.

10. How long can I safely wait before addressing OBDII code P1B24 GMC indicating Hybrid/Electric Vehicle Battery 31 Circuit High Voltage?

- It is best to address this code as soon as possible to prevent any further damage to the high voltage system and ensure the proper functioning of the hybrid/electric vehicle.