AutoCodes – GMC – P0B93 GMC

P0B93 GMC Code - Hybrid/Electric Vehicle Battery 18 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: P0B93 GMC indicates Hybrid/Electric Vehicle Battery 18 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 945

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 P0B93 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 P0B93 GMC - Hybrid/Electric Vehicle Battery 18 Circuit High Voltage - AutoCodes.com — P0B93 GMC Code - Hybrid/Electric Vehicle Battery 18 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0B93 GMC?

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

How to Fix the DTC P0B93 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 P0B93 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 P0B93 GMC Code

1. What are the common symptoms of OBDII code P0B93 GMC related to the Hybrid/Electric Vehicle Battery 18 Circuit High Voltage?

- The common symptoms include the hybrid/electric vehicle displaying a warning light on the dashboard, reduced power or performance, and potential issues with the vehicle's battery system.

2. What are the possible causes of OBDII code P0B93 GMC indicating Hybrid/Electric Vehicle Battery 18 Circuit High Voltage?

- The code P0B93 can be triggered by issues such as a faulty battery pack, high voltage circuit malfunctions, damaged wiring, or problems with the battery management system.

3. How can I diagnose the OBDII code P0B93 GMC related to the Hybrid/Electric Vehicle Battery 18 Circuit High Voltage?

- Diagnosing this code typically involves using a diagnostic scan tool to retrieve the specific fault codes, inspecting the high voltage circuits, testing the battery pack, and checking for any visible signs of damage.

4. What are some repair tips for resolving OBDII code P0B93 GMC in a Hybrid/Electric Vehicle?

- Repair tips may include checking and repairing any damaged wiring, replacing the faulty battery pack or components, resetting the battery management system, and ensuring all connections are secure and properly insulated.

5. Can OBDII code P0B93 GMC indicating Hybrid/Electric Vehicle Battery 18 Circuit High Voltage be fixed without professional help?

- While some basic troubleshooting steps can be taken by DIY enthusiasts, diagnosing and repairing issues related to high voltage systems in hybrid/electric vehicles often require specialized knowledge and tools, so seeking professional help is recommended.

6. Is it safe to continue driving with OBDII code P0B93 GMC triggered in a Hybrid/Electric Vehicle?

- It is not recommended to continue driving with the code P0B93 GMC activated, as it indicates potential issues with the high voltage system that could lead to safety hazards or further damage to the vehicle.

7. How much does it typically cost to repair OBDII code P0B93 GMC in a Hybrid/Electric Vehicle?

- The cost of repairing this code can vary depending on the extent of the issue, the need for replacement parts, and labor costs. It is advisable to obtain quotes from reputable automotive technicians or dealerships.

8. Can a low or depleted hybrid/electric vehicle battery cause OBDII code P0B93 GMC to appear?

- While a low or depleted battery may not directly cause the code P0B93, it can contribute to issues within the high voltage system that may trigger the code. Ensuring the battery is properly charged and maintained is essential for overall vehicle health.

9. Are there any recalls or service bulletins related to OBDII code P0B93 GMC in certain GMC hybrid/electric vehicles?

- It is advisable to check with GMC dealerships or official sources for any recalls or service bulletins related to the specific model and year of the vehicle experiencing the code P0B93 to stay informed about potential manufacturer-acknowledged issues.

10. How can regular maintenance help prevent OBDII code P0B93 GMC from occurring in a Hybrid/Electric Vehicle?

- Regular maintenance, including scheduled inspections of the high voltage system, battery health checks, and prompt attention to any warning lights or unusual vehicle behavior, can help prevent issues that may lead to the activation of code P0B93 in a hybrid/electric vehicle.