AutoCodes – GMC – P1B95 GMC

P1B95 GMC Code - Hybrid/Electric Vehicle Battery 59 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: P1B95 GMC indicates Hybrid/Electric Vehicle Battery 59 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 822

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 P1B95 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 P1B95 GMC - Hybrid/Electric Vehicle Battery 59 Circuit High Voltage - AutoCodes.com — P1B95 GMC Code - Hybrid/Electric Vehicle Battery 59 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B95 GMC?

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

How to Fix the DTC P1B95 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 P1B95 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 P1B95 GMC Code

1. What are the common symptoms of OBDII code P1B95 GMC related to Hybrid/Electric Vehicle Battery 59 Circuit High Voltage?

- Common symptoms include reduced electric vehicle range, warning lights on the dashboard, and potential difficulty starting the vehicle.

2. What are some possible causes of OBDII code P1B95 GMC indicating Hybrid/Electric Vehicle Battery 59 Circuit High Voltage?

- Possible causes may include a faulty battery pack, issues with the high voltage circuit, damaged wiring, or a malfunctioning battery management system.

3. How can I diagnose OBDII code P1B95 GMC associated with Hybrid/Electric Vehicle Battery 59 Circuit High Voltage?

- Diagnosis can involve using a diagnostic scan tool to read the code, conducting a visual inspection of the battery and related components, and performing voltage testing as per manufacturer guidelines.

4. What are the potential risks of driving with OBDII code P1B95 GMC triggered by Hybrid/Electric Vehicle Battery 59 Circuit High Voltage?

- Driving with this code can lead to further damage to the electric components, reduced vehicle performance, and potential safety hazards due to high voltage issues.

5. Are there any DIY repair tips for addressing OBDII code P1B95 GMC linked to Hybrid/Electric Vehicle Battery 59 Circuit High Voltage?

- DIY repair is not recommended due to the high voltage nature of the components involved. It is advisable to seek professional help from a certified technician with experience in hybrid/electric vehicles.

6. How much does it typically cost to repair OBDII code P1B95 GMC related to Hybrid/Electric Vehicle Battery 59 Circuit High Voltage?

- The cost of repair can vary depending on the extent of the issue, parts needed, and labor rates. It is recommended to get a diagnostic assessment from a qualified mechanic for an accurate estimate.

7. Can resetting the OBDII code P1B95 GMC associated with Hybrid/Electric Vehicle Battery 59 Circuit High Voltage resolve the issue?

- Resetting the code may temporarily clear the warning lights, but it will not fix the underlying problem causing the code to trigger. It is crucial to address the root cause of the issue for a lasting solution.

8. Is it safe to continue driving my hybrid/electric vehicle with OBDII code P1B95 GMC illuminated?

- It is not recommended to drive the vehicle with this code illuminated, as it indicates a potential high voltage issue that can pose safety risks and further damage the vehicle's electrical components.