AutoCodes – GMC – P1B97 GMC

P1B97 GMC Code - Hybrid/Electric Vehicle Battery 60 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: P1B97 GMC indicates Hybrid/Electric Vehicle Battery 60 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 851

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 P1B97 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 P1B97 GMC - Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage - AutoCodes.com — P1B97 GMC Code - Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1B97 GMC?

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

How to Fix the DTC P1B97 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 P1B97 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 P1B97 GMC Code

1. What are common symptoms of OBDII code P1B97 GMC?

- Common symptoms include reduced electric drive range, poor battery performance, and potential illumination of the check engine light.

2. What are some possible causes of the Hybrid/Electric Vehicle Battery 60 Circuit Low Voltage code?

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

3. Can driving with the P1B97 code present cause further damage to the vehicle?

- Continuing to drive with the code present can potentially damage the hybrid/electric vehicle's battery system and compromise overall vehicle performance.

4. How can I diagnose the source of the low voltage issue triggering code P1B97 on my GMC hybrid/electric vehicle?

- It is recommended to have the vehicle diagnosed by a qualified technician with expertise in hybrid/electric vehicle systems to accurately identify the root cause of the low voltage issue.

5. Is it safe to attempt DIY repairs for OBDII code P1B97 GMC, or should I seek professional assistance?

- Due to the complexity and high-voltage nature of hybrid/electric vehicle systems, it is generally safer and more effective to seek professional assistance for repairs related to code P1B97.

6. Are there any maintenance tips to prevent OBDII code P1B97 from reoccurring in my GMC hybrid/electric vehicle?

- Regularly scheduled maintenance, such as battery health checks and system inspections, can help prevent issues that may trigger the P1B97 code.

7. Can extreme weather conditions impact the occurrence of code P1B97 in a GMC hybrid/electric vehicle?

- Yes, extreme weather conditions, especially extreme heat or cold, can place additional stress on the battery system and potentially lead to the triggering of code P1B97.

8. How urgent is it to address OBDII code P1B97 in a GMC hybrid/electric vehicle?

- It is recommended to address code P1B97 promptly to prevent further damage to the vehicle's battery system and ensure optimal performance of the hybrid/electric components.

9. Is there a specific reset procedure required after repairing the underlying issue causing OBDII code P1B97 in a GMC hybrid/electric vehicle?

- After repairing the issue triggering code P1B97, a reset of the vehicle's onboard computer system may be necessary to clear the code and ensure proper functioning.

10. What should I do if I encounter code P1B97 in my GMC hybrid/electric vehicle while driving?

- If code P1B97 appears while driving, it is recommended to safely pull over, turn off the vehicle, and consult the owner's manual for guidance on next steps, which may include contacting a professional technician.